Hitachi Polarized Zeeman Atomic Absorption Spectrophotometer . - TechnoS
Hitachi Polarized Zeeman AtomicAbsorption SpectrophotometerZA3000 Series
Never Ending Evolution of Hitachi ZeemanAtomicAbsorptionSpectrophotometerZA3000 is the new elemental analyzer which continued the fundamental performance of the highp r e c i s i o n a n d s e n s i t i v e a n a l y s i s o f p o l a r i z e d Z e e m a n A t o m i c A b s o r p t i o n S p e c t r o p h o t o m e t e r, a n dimproved functionality and reliability in response to the User's needs.Tandem(Flame & Graphite Fur nace) type AASZA3000 Series Line-up1
S Y S T E MP E R F O R M A N C E P olar iz ed Zeeman Met h od an d D u al D et ect or S epar ated atomiz ation com part m en t Environmen tal per for m an ceF U N C T I O NP 8P.8 An alysis Assist ( v oi ce gu i dan ce) an d Real Ti m e Q C Easy Star tP 8P.8 Twin in jection t ech n ol ogyP 9P.9 Fast dispensing by graph i t e f u r n ace au t os am pl erE A S YT OP 10P.10U S E User assistant s w i t ch es f or f l am e an al y s i sP 8P.8 Gr aph ite fu r n ace au t os am pl er bu i l t i n t h e m ai n u n i tP 10P.10 Graphite fur nace dustproof cover standard-equippedP 10P.10 Simple, GUI st y l e operat i onFlame AASP 11P.11Graphite Furnace AAS2
Z A 3 0 0 0S E R I E SF E A T U R E SHigh Precision of Measurement Owing to Dual Detector MethodHigh Sensitivity and High PerformanceA real-time background correction is realized by simultaneous measurement of sample light andreference light with two different detectors. Reproducibility and stability of analysis are improved byrequiring no mechanism of switching the optical axis.The new optical system and the improved graphite furnace power supply circuit ensure high sensitivities.Using an ordinary hollow cathode lamp, the ZA3000Series spectrophotometer is capable of analyzing As,Se and Sb in tap water and environmental water, whichpreviously have only been measurable using an EDLhigh-intensity or high-power lamp in a conventionalgraphite furnace analyses. This shows how noise canbe reduced significantly to ensure high sensitivity.Conventional (a high-intensity lamp required) hollow cathode lamp0.020.0002004006008001,000Time (s)As1 μg/LZA3000 hollow cathode lamp0.020.0002004006008001,000Time (s)Principle of Polarized Zeeman CorrectionWhen a magnetic field is applied to a sample, the light component polarizedparallel to the magnetic field (P//) is absorbed by the atoms of the sample,while the light component polarized perpendicular to the magnetic field (P )is absorbed to a small extent by the atoms of the sample. On the other hand,background components, such as molecules and particles, are not affected bythe applied magnetic field. Accordingly, both the light components, P// andP , are attenuated by the background components by the same amount. Asa result, the background contribution of absorption can be eliminated bytaking the difference between the signals of two light components, thereby thedesired atomic absorption signal is obtained.Since the same light source is used to measure both light components, P// andP , full double beam photometry is obtained, and accurate backgroundc o r re c t i o n i s o b t a i n e d t h ro u g h o u t t h e e n t i re w a v e l e n g t h r a n g e . W i t h acontinuous spectrum light source such as the D 2 lamp, molecular absorptioncan be corrected only within a limited wavelength region, but neighboring lineabsorption cannot be corrected. Further, in case of self-reverse method, thereis a problem of a significant decrease in sensitivity depending on the elementto be analyzed. There are other problems that the light beam is not preciselyequivalent between low current and high current conditions, and that thededicated light source lamp has heavy consumption.Polarized component parallel to magnetic field P//BackgroundBackgroundSpectrumof sampleAtomicabsorptionSpectrum of light sourceWavelengthDifference inabsorptionAtomicabsorptionPolarized component perpendicularto magnetic field PBackgroundBackgroundSpectrumof sampleSpectrum of light sourceWavelength3
Analysis of High Reliability Using the Polarized Zeeman MethodBaseline StabilityElement : CuWave length : 324.8 nmFlame type : Air-acetyleneTime constant : 0.2 s1 minABS0.002MIBKMIBKMIBKMIBKWATERWATERDeuterium lampWATERmethodFUEL（ACETYLENE） FLAME1.7 L/minOFFFLOWWATER2.0 L/min2.3 L/min2.6 L/minPolarized ZeemanmethodWATER MIBKWATER MIBKWATER MIBKABS0.002Analysis of high precision can be realized by means ofd o u b l e b e a m p h o t o m e t r y. A s t a b l e b a s e l i n e i sprovided for both flame analysis and graphite furnaceanalysis. The baseline stability is not affected by theintroduction of an organic solvent.WATER MIBKQuick Start up Saves Running CostIdeal double beam photometry using polarized Zeemanmethod is provided for both flame analysis andgraphite furnace analysis. In case of Pb and Znanalyses, it usually takes 10 to 25 minutes before thebaseline becomes stable. In case of the polarizedZ e e m a n m e t h o d , h o w e v e r, t h e b a s e l i n e i s s t a b l eimmediately after turning on the hollow cathode lamp.Since stabilization time is not needed for the hollowcathode lamp, most of the lamp service life can beused for the analysis, thus running cost can be savedsubstantially.Zn0.1ABSPbZnPbHg1minHgLamp lighting5Zn：213.9 nmPb：283.3 nmHg：253.7 nm101520 minZeeman atomic absorption spectrophotometerConventional single-beam atomic absorptionspectrophotometerB a c k g ro u n d C o r re c t i o n f o r E n t i re Wa v e l e n g t h R a n g e u s i n g O n l y H o l l o w C a t h o d e L a m pBackground correction can be carried out over theentire wavelength range using light from the hollowc a t h o d e l a m p f o r m e a s u re m e n t . T h e c a p a b i l i t y o fperforming atomic absorption and backgroundcorrection at the same wavelength and in the samespectral width is one of the major advantages of thepolarized Zeeman method.190 nm360 nmDeuteriumlamp method900 nmPolarized Zeeman methodAs Cd Pb200Cr Ca400Ba Na600Wavelength4LiKCs800 nm
Z A 3 0 0 0S E R I E SF E A T U R E SSwitching t h e Met h od of A naly s is is Very S impleStable Optical SystemThe simple operation of only the software on PC allows switching of the atomizer between flame analysisand graphite furnace analysis. Since atomizer replacement is unnecessary, optical axis adjustment of D 2and hollow cathode lamp is also unnecessary. Flame analysis or graphite furnace analysis can be easilyselected depending on the sample volume and the concentration.0.250.0250.00250.00025Absorbance (Peak height & Integration)Absorbance corresponding to a certion peak widthGraphite furnaceABSPeak heightFlamePeak widthIntegrationABS0.201Cd228.8 nmABS0.402 μg/L0.12 mg/L1 μg/L0.101 mg/L0.200.010.000.00110 410 310 210 1100101102Concentration (mg/L)0.0002002000Time (s)Time (s)Graphite furnaceFlameK i nd to the En vi ron men tEcologyThe consumption of cooling water and electric power is saved during stand-by of ZA3000 seriesspectrophotometers. They are equipped with water saving mode and power saving mode, which operatewhen the stand-by condition lasts for a certain period of time.【Water saving mode】The feed of cooling water is stopped (model ZA3000 is equipped with it).【Power saving mode】Hollow cathode lamp is turned off.The power consumption of the autosampler is saved (Both models ZA3000 and ZA3700 are equipped with it).＊Water saving mode and power saving mode can be enabled or disabled, as desired.History of Hitachi Polarized Zeeman Atomic Absorption SpectrophotometersSince the development of our first model 501 Hitachi Polarized Zeeman AtomicAbsorption Spectrophotometer in 1973, before the rest of the world,many series of products have been released, and now ourproducts are regularly used by about 9,000 customers in25 countries all over the Z-90001983Z-80001980180-701976170-7019735015
Analyses i n v ar i ou s of Fields o f A pplicat io nCompatible with Analyses in various of Fields of ApplicationApplications[Public health, environmental measurement]River water, Seawater, Industrial wastewater,Atmospheric dust, etc.[Petrochemical industry]Plastics, Various kinds of oil, etc.[Metalworking industry, metallurgy]Steel, Nonferrous metal, Alloy, Ore, etc.[Nonmetallic industry]Fiber, Paper, Cement, Cosmetics, etc.[Food industry]Food, Food additives, etc.[Agriculture, forestry, fisheries]Animals, Plants, Fish, Soil, Fertilizer, etc.[biotechnology, pharmacy]Biochemistry, Drugs, etc.Compatible with Many ElementsBackground correction by using the combination of the polarized Zeeman methodand dual detector allows accurate analysisof samples containing many matrix.1H3LiHe4Be11121920BNa 224072V23Cr412442Nb tinides65GraphiteAIR C2H2HydridesN2O C2H2furnaceNote: The non-colored elements cannot be assayedCeTh5890PrPa59916061626392939495Nd Pm Sm EuUNp64Gd96TbPu Am Cm Bk6597DyCf669867HoEs99Er681006970101102Tm YbFm Md NoLu71103Lr
F L A M E Polarized Zeeman method is adopted, which features low noise, high stability, and high throughput Easy to use thanks to Analysis Assist, Real Time QC, and Easy Start functions Improved safety owing to computer-controlled flame ignition sequence Labor assistant switches convenient for "Measurement start"S Y S T E MP E R F O R M A N C EPolarized Zeeman Method and Dual DetectorThe Polarized Zeeman method and the dual detector allows concurrent detection of sample beam and reference beam, and a truly real-timebackground correction is thus realized.Results of Measurement of Cesium Contained in DrainResults of Cd in NIES No.102 g of sample take in vial,add 20 mL of 1 mol/LHCI solution, shake for1 hour and pass througha 0.45 μm filter.ABS0.0050.004SampleAnalytical value(μg/g)Certified value(μg/g)No.10 -a0.0250.023 0.003No.10 -b0.3100.32 0.02No.10 -c1.7651.82 .120.100.080.060.040.020.00-0.02NIES CRM No.10 : Rice Flour Unpolished0.0030.0020.001STD10 μg/LSTD22.5 μg/LSTD47.5 μg/LSTD35 μg/LSTD510 300400DrainAnalyticalvalue( mg / L )ND0.962.915.18SpikeAmount( mg / L )—135SpikeRecovery( %)—96.097.0103.6REF0.200.150.100.050.0010 mg/LDrain 5 mg/L5 mg/LDrain 3 mg/L2.5 mg/LDrain 1 mg/L0 mg/LDrain050100150Time (s)200250Time (s)Cadmium concentration levels of µg/L can be accurately assayed.Even for cesium, which has a long absorption wavelength (852.1 nm), accuratebackground correction can be achieved.Baseline StabilityA stable baseline is provided by the Polarized Zeeman method and the dual detector.Results of Measurement of Lead Contained in River e0.00450.00400.00350.0030Conventional methodREF0.20SpikeRecovery(%)Element : CuWavelength : 324.8 nmTime constant : 2 s0.15River waterND—River water 0.05mg/L0.053 0.0011060.10River water 0.1mg/L0.103 0.0011030.05ABS0.000.100.2 mg/L0.1 mg/LRiverwater0.00050.0000-0.00050.10Riverwater 0.05 mg/L0.0620.04 0.1 mg/L4 mg/L0.080.06RiverwaterElement : CuWavelength : 324.8 nmTime constant : 0.2 sSample volume : 100 μLABS4 mg/L0.080.3 mg/L0.00250.00200.00150.0010Micro-sampling method20.04110.020.02000.000 mg/L0.000100200050100-0.0010Time (s)050100150200250300350Time (s)400Time (s)Since the baseline is stable, lead concentration levels of 0.1 mg/L can be accurately analyzed.Wa t er S av i n g a n d P o w e r S a v i n gNEWNEWWhen the stand-by condition lasts for a certain period of time, forexample, after the completion of analysis, the feed of cooling water isstopped (water saving mode), and thehollow cathode lamp is turned off (powersaving mode). The water saving mode andpower saving mode can be enabled ordisabled, as desired.＊ The water saving mode equip with the ZA3000 only.Since the baseline is stable, the method of micro sampling can be effectively carried out.Safety Functions Computer-controlled flame ignition and extinguishing sequence Continuous monitoring of combustion gas pressure (upper and lower limits) Monitoring of supporting gas pressure Automatic gas feed stop at flame turning-off Interlock mechanism for dinitrogen oxide - acetylene gas burner head Monitoring of burner drain level Monitoring of cooling water flow rate Prevention of backfire caused by supportinggas buffer tank at power failure Monitoring of malfunction of solenoid valveopening and closing Monitoring of flame sensor abnormalitiesSafety-minded ignition Gas leakage check at flame ignitionsequence7
E A S YEasy StartT OU S EAutomatic Setting of Analytical ConditionsMeasurement is automatically started at the appropriate timing which isjudged by the system on sample injection.Users can carry out anexperiment without forcusing their attention on the monitor.ABSREF0.200.2000Equipped with a large turret-type lamp holder, on which 8 hollowcathode lamps can be mounted. Lamp positioning, fine adjustment,and lamp current setting are all carried out automatically for theelement to be measured. Spectral peaks can be located accuratelyowing to the micro-drive spectrum search function. The spectralprofile is displayed on the screen, along with useful information, suchas neighboring spectral lines.0.180.16-0.02000.14Measurementis complete.0.12Improved Operability thanks to User assistant Switches0.10Measurementis started.0.08The remote-control switches previouslyavailable at option are now replaced with onesstandard-equipped on the main unit. Manualanalysis can be carried out by switch operationon the instrument front.0.06Aspirate nextsample.0.040.020.000100200Time (s)Analysis Assist Provides Simple OperationHydride Generating UnitProgress of measurement is supported by screen messages and voiceguidance during analysis.Ready for measureing.Aspirate the standard 1.(option)Also for measurement using the hydridegenerating unit (HFS-3), a stable baselinecan be achieved with measurement by theP o l a r i z e d Z e e m a n m e t h o d . T h e re i s n oneed for troublesome waiting time for lampstabilization.Measurement is started.ABSREF0.200.200.15Real Time QC0.180.100.050.160.00QC check can be carried out in parallel with measurement, therebysecuring the accuracy of measurement, not only for the analysis usingan autosampler, but also for the analysis by manual operation. Calibration checkCoefficient of working curve is Concentration/ reproducibility check not valid.Most distant standard will QC sample check, etc.be measured again.0.140.120.105 μg/L0.080.06Aspirate standard 3.3 μg/L1 μg/L0.02Greentea 1 μg/LDeepwater 1 μg/L0.04Deepwater0 μg/LGreentea0.00-0.020100200300400500600Time (s)The baseline is stable immediately after turning on the hollow cathode lamp, andan arsenic concentration levels of 1 µg/L can be readily measured.8Polarized Zeeman Atomic Absorption Spectrophotometer ZA3000 SeriesF U N C T I O N
G R A P H I T EF U R N A C E High accuracy background correction is available owing to the use of the DC polarized Zeeman method Main body integral standardly equipped with autosampler and graphite furnace dustproof cover Improved accuracy of measurement for large volume samples owing to twin injection technology Automatic bumping detection function allows detection of sample bumping during drying processS Y S T E MP E R F O R M A N C EPolarized Zeeman Method and Dual Detector MethodThe combined method of the Polarized Zeeman method and the dual detector allowsconcurrent detection of sample beam and reference beam, and a truly real-timebackground correction is 40.120.100.080.060.040.020.00Wa t e r S a v i n gand Power SavingNEWNEWWhen the stand-by condition lasts for a certain period of time, for example,after the completion of the analysis, the feed of cooling water is stopped(water saving mode), and the hollow cathode lamp is turned off and theautosampler power consumption is reduced (power saving mode). The watersaving mode and power saving mode can be enabled or disabled, as desired.＊ The water saving mode equip with the ZA3000 only.2 μg/L1 μg/L0.5 μg/L0 μg/L0100200300400500Time (s)Low concentration levels of cadmium can be measured with a high reproducibility.F U N C T I O NTw i n I n j e c t i o n Te c h n o l o g yNEWNEWSensitivity can be improved readily by injecting a large volume of sample. There are two sample injection holesin the cuvette. By preparing two sample injection holes, the contact area between sample and cuvette becomeslarger, thereby the efficiency of heat conduction to the sample is improved. Consequently, a shorter duration ofdrying process is allowed even for the analysis of a sample with a large volume.【7J1 8500】Pyro tube D HR【7J1-8500】NozzleSampl eInject half of the sample into one holeInject the remaining sample into the other holeABS0.1000.0901-As 193.7 nmABS0.0280.0240.0200.0800.0700.0602.0 μg/L0.0500.0401.0 μg/L0.0300.5 μg/L0.0200.010Riverwater0 μg/LRiverwater 0.2 0000.024STD2 0.25 μg/LSTD1 0 μg/L0.0160.0120.51.01.52.02.53.0T ime (s )0200400600Time (s)8001,000Antimony concentration levels of 0.2 µg/L contained in river water can be measuredwithout concentrating by heating.Ashing Temperature Graph0.0000.00.99930.20.40.60.81.01.2C o nc e nt ra t io n (μg/ L)＊ JSAC 0301-1 �河川認証標準物質Arsenic concentration levels of 0.2 µg/L contained in river water can be measuredwithout concentrating by heating.Temperature Program Development FunctionA temperature program, by which the maximum absorbance or the minimum RSDcan be achieved, can be generated automatically by carrying out test cycles withstep-wise incremental temperature parameters for drying, ashing, and atomization.1-As 193.7 nmABS0.028STD4 1 μg/LSTD3 0.5 μg/LJSAC 0301-1Cuvette CleaningNEWNEWThis function minimizes memory effects of high melting point elements,which may be left in the cuvette after previous measurement, by heatingthe cuvette before subsequent measurement. There are two ways ofheating treatment: One is "Heating" mode, in which the duration ofmaximum heating is specified, and the other is "Temperature Program"mode, in which a desired cleaning temperature program is specified.Atomization Temperature Graph9
E A S YFour Kinds of Matrix Modifiers Can Be AppliedAbsorbance ratioAddition of appropriate reagent(s) to the sample can lead to interference suppressionand sensitivity improvement. Further, since the ashing temperature is increased, thereagent addition is effective for theEffect of each matrix modifier for Snremoval of organic substances andSn 100 μg/LNot addedPalladium nitrate500 mg/L addedNickel nitrate1,000 mg/L addedother coexisting substances,Magnesium nitrate 1,000 mg/L addedAluminum nitrate1% addedpossibly leading to the improvement1.0o f s p i k e r e c o v e r y o f t h e t a rg e telement, the improvement of thelimit of detection, and the removal0.5of background components. Theappropriate matrix modifiersdepend on the element of analysis,0.0and up to four kinds of matrix5001,0001,5002,000Ashing temperature Cmodifiers can be applied.NEWNEWBumping Detection of the SampleIf sample bumping occurs during the drying process, the accuracy ofmeasurement would be compromised. Sample bumping is monitored duringmeasurement, and the "P" label isattached to the measured value whensample bumping is suspected duringmeasurement. Accordingly, the possibleoccurrence of sample bumping can bechecked after the measurement, andthis information is useful for the analysisof factors responsible for poorT i me ( s .16T OU S EAutomatic Setting of Analytical ConditionsEquipped with a large turret-type lamp holder, on which 8 hollow cathode lamps can bemounted. Lamp positioning, fine adjustment, and lamp current setting are all carried outautomatically for the element to be measured. Spectral peaks can be located accuratelyowing to the micro-drive spectrum search function. The spectral profile is displayed onthe screen, along with useful information, such as neighboring spectral lines. The carriergas flow rate at each stage of heating to specified temperatures is under automaticcontrol by computer. Optical temperature control is utilized for atomization heating.Analyses of high sensitivity and high accuracy can be accomplished.High-performance Autosampler Built in the Main Body・Up to 60 samples can be loaded.・Only the specified samples can be measured by the use of random-access function.・Sample injection volume can be specified up to 100 μL in increments of 1 μL.・Sample injection speed can be selected among 5 speeds depending on the liquidcharacteristics of sample.・An appropriate concentration of the sample can be achieved by the use of either theinner-furnace concentrating or the inner-furnace dilution mode.・Methanol, ethanol, MIBK, and other organic solvent samples can be measured.・96 Micro-plates (optional) can be used for sample injection.0.140.120.100.08NEWFast Dispensing by Autosampler (Contiguous Injection) NEW0.060.040.020.00330033503400High-performance Omega Platform CuvetteAn alter nate gas, other than Ar gas, can be used during the ashingprocess. By the use of Ar gas containing 5 to 10% of oxygen,interference caused by background or coexisting substances can bereduced.403020100Average Pb concentration in 100 repeated atomizations: 38.3 μg/LRSD 2.8%50Pb concentration (μg/L)Pb concentration (μg/L)Average Pb concentration in 30 repeated atomizations: 34.0 μg/LRSD 4.3%50(ABS)0.00Stand ardsolutionUnknownsamp le0.300.500 μ g/ L(optional)A dustproof cover is standardly mountedabove the graphite furnace and autosampler to prevent the ingress of dust in thelaboratory. In addition, since the coverfacing the autosampler can be openedseparately to allow frequent access tothe autosampler for sample replacement,the atomization section is constructed tobe more resistant to pollution.0.250Alternate Gas is AvailableC ov e r0.125Measurement of Cs in soybean.D u s t p roof0.0High accuracy analysis of samples containing a lot of coexisting substancesis possible. By carrying out theSampleMeasured Value (ng/g) Certified Value (ng/g)INCT-SBF-4132.3129.1 4.3ABSsample atomization when thermal0.40Soybean sample 20 μg/L0.35equilibrium within the cuvette isSoybean sample 10 μg/L0.30Soybean sample 5 μg/L0.25achieved, interference caused bySoybean sample 0 μg/L0.20Blank0.15the coexisting substances can be0.100.05reduced. Interference caused by the0.00matrix can be reduced, and high-0.050.00.51.01.52.02.5Time (s)accuracy analysis is possible.When multiple solutions of sample and matrix modifiers are injected into thecuvette, the first solution is sucked, then air, then another solution, then air, andso on. Finally, the multiple solutions that are sucked are injected all together intothe cuvette. The vigorous injection facilitates the mixing of the sample withmatrix modifiers. Due to this mixing effect, the concentration or the additionvolume of matrix modifiers may be lowered. In the case of dispensing 20 μL of asample plus 10 μL of a matrix modifier, the dispensing time can be reduced byabout 40% compared with the usual dispensing method.SuperiorreproducibilityReproducibility of Na in standard solutions(0.125, 0.25, 0.5 μg/L) and sample solution.403020LED for Illuminating Graphite Furnace10NEWNEW0050100050Number of times atomizedNumber of times atomizedUsing argon gasUsing alternate gas100LED is incorporated to illuminate the graphite furnace section. As a result, the visibilityduring position adjustment of the autosampler nozzle or cuvette replacement isimproved, also facilitating maintenance works.10Polarized Zeeman Atomic Absorption Spectrophotometer ZA3000 SeriesF U N C T I O N
U S E RI N T E R F A C E In addition to full-content functions, simple, improved GUI style operation is offered All the information during measurement is put together on the Monitor Screen Custom report generation function using Excel (Report Generator) is incorporated Measurement parameters can be specified readily in a sequential mannerMonitor ScreenSignals during measurement (Zeeman correction signal and background signal) are displayed in a real-time manner. This screen displaysmeasurement and atomization profiles, results of measurement, calibration curve, and other pertinent information, that are definitelyuseful for check the status of measurement.Measurement profileAtomization profileA character corresponding to the method of analysis isshown hereTarget element and wavelength are shown hereABS and REF values are shown hereStatus of apparatus is shown hereResults of measurementCalibration curveGet wanted information on sight.Data Processing ScreenOperation and data processing regarding multiple elements can be readily carried out. This screen displays results of measurement,atomization profile, calibration curve, and other pertinent information, facilitating your desired operations. Data processing operation isalso available even during measurement owing to multi tasking. Regarding report output after data processing, Report Generator isoffered; Report Generator allows you to generate your custom reports using Excel in the desired format in addition to the incorporatedexisting formats.Re sults o f meas u rementAtom izat ion profileEven during measurement, previouslyacquired data can be checked or edited.Ca librat ion curv e11
On this screen, you can select the element to be analyzed and specify parameters of measurement. To do this, you just follow theprompts displayed on the screen. Up to 12 elements can be measured when a composite lamp is used. In case of sequentialanalysis of multiple elements, parameters of measurement for each kind of element can be specified together. You can also checkthe information of analysis for a specified element.Since specified parameters of measurement can be saved.Even a beginner can readily specify parameters ofmeasurement by following the sequence of workflow.Element Selection ScreenAutosampler Setting ScreenDiagnosis FunctionHelp FunctionA diagnosis function is incorporated in the ZA3000 seriess p e c t r o p h o t o m e t e r. S i n c e t h e w a v e l e n g t h a c c u r a c y,b a s e l i n e s t a b i l i t y, s e n s i t i v i t y, a n d r e p r o d u c i b i l i t y a r ec h e c k e d a u t o m a t i c a l l y, y o u c a n v e r i f y t h e p r e c i s i o n ,accuracy, and stability of the apparatus.Help function is offered for each screen. The features oftopic search and key-word search are available, and it ishelpful in clarifying ambiguities about how to operate. Ont h e A n a l y t i c a l I n f o r m a t i o n S c re e n , y o u c a n c h e c k t h einformation related to each element.Help ScreenAnalytical Information ScreenFull-content Help function is helpfulto solve your worries about measurement.The status of the apparatus caneasily be checked.12Polarized Zeeman Atomic Absorption Spectrophotometer ZA3000 SeriesParameters Setting Screen
A C C E S S O R YForSSC-230 Flame AutosamplerTa rg e t s a m p l e s o l u t i o n s a re s a m p l e d b y m e a n s o f r a n d o m - a c c e s sfunction, thereby measurement time being reduced, and sampleconsumption being minimized. Up to 80 samples can be loaded. Random-access target samples can be specified for each element, andautomatic multiple-element analysis including up to 12 elements isavailable. After the completion of measurement, the burner chamber is washed,and the flame is extinguished automatically.HFS-3 Hydride Generating Unit This unit uses sodium borohydride, and enables high sensitivity assayof elements such as As and Se. Efficient analysis is provided because sensitivity is high andmeasurement is fast. High accuracyanalysis is possible because measurementis made consistently under identicalconditions by using continuous flowbased on JIS standards.Assay-applicable elements: As, Sb, and SeThe use of Heating Absorption Cell(separately supplied) is required.Mercury Analysis Accessory UnitWith this accessory unit, a reducing agent can be added to the samplesolution to vaporize mercury, leading to a high sensitivity analysis.The use of reaction reagent of SnCl 2 is required.＊ Drying agent dehumidification typeF la m eHeating Absorption Cell for HFS-3When equipped with the HFS-3 HydrideGenerating Unit, this cell is mounted above thebur ner, and is heated by air - acetylene gasflame (cell holder supplied).＊ Heating Absorption Cell without a cell holderHigh Temperature Burner HeadThis burner is used for the measurement ofelements, such as Al, B, Be, Ge, La, Nb, Si,Ta, Ti, V, W, and Zr, of which dissociationenergy is high. The use of a dinitrogen oxide- acetylene gas flame is required.Optical path length: 5 cm, Material: TitaniumHigh Salt-Burner HeadThis burner is used for the measurement of highsalt-content samples. The use of air - acetylenegas flame is required.Optical path length: 10 cm, Material: TitaniumMicro-Sampling KitGlass AtomizerSamples of 0.5 mL or less can be measured by flame analysis.This accessory kit prevents the burner slot from clogging caused bysample solutions.This atomizer is used for the analysis of samplesolutions that contain acids that can dissolvemetals.Even samples that contain aqua regia can bemeasured without erosion.Material: Fully made of glassForPEEK Nozzle for Furnace AutosamplerThe material PEEK, which is bend-resistant,is used for the nozzle end.Note that this nozzle cannot be used forsamples such as concentrated nitric acid,which can dissolve the PEEK.Gra p h i t eAlternate Gas UnitThis unit accelerates the decomposition of organic substances duringashing by switching argon gas and oxygen-mixed argon gas.ForHLA-4
Atomic Absorption Spectrophotometer Tandem(Flame & Graphite Furnace) type AAS ZA3000 is the new elemental analyzer which continued the fundamental performance of the high precision and sensitive analysis of polarized Zeeman Atomic Absorption Spectrophotometer, and improved functionality and reliability in response to the User's needs.
energy levels. In the presence of a magnetic field, these energy levels can shift. This effect is known as the Zeeman effect. The origin of Zeeman effect is the following. In an atomic energy state, an electron orbits around the nucleus of the atom and has a magnetic dipole moment associat
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TR2015-037 May 2015 Abstract In this paper, we propose a near field coupling based wireless power transfer (WPT) system with circularly polarized magnetic field. With a pair of orthogonal resonant coils arranged to . polarized field; some extremely bad cases or dead spots in linearly polarized case are avoided with circularly polarized
Mid Efficiency Polarized Filter. 41% Light Transmission 26% Blue Light Filtered. Gray-Green. High Efficiency Polarized Filter 13% Light Transmission. 89% Blue Light Filtered . Also available non-polarized. Gray-3. High Efficiency Polarized Filter. 15% Light Transmission . 86% Blue Light Filtered* Also available non-polarized. Brown-3. High .
44 Flame Emission - it measures the radiation emitted by the excited atoms that is related to concentration. Atomic Absorption - it measures the radiation absorbed by the unexcited atoms that are determined. Atomic absorption depends only upon the number of unexcited atoms, the absorption intensity is not directly affected by the
Zeeman effect in neon and mercury for which the theory of Zeeman effect is somewhat more tractable. Non-relativistic quantum theory accounts for only one type of angular momentum called orbital angular momentum. The Hamiltonian for an electron with angular momentum l! has an additional term µ Bl! ·H! when a weak uniform magnetic field H! is .
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2003–2008 Mountain Goat Software Scrum roles and responsibilities Defines the features of the product, decides on release date and content Is responsible for the profitability of the product (ROI) Prioritizes features according to market value Can change features and priority every sprint Accepts or rejects work results Product Owner .
