| Test method: | Flame,graphite furnace,flame emission method,hydride generation method | |
| Wavelength accuracy: | The wavelength accuracy of the instrument≤±0.5nm | |
| Wavelength repeatability: |
Wavelength repeatability≤0.3nm | |
| Resolution: | 0.2nm spectral line half-width of bandwidth measurement≤0.2nm±0.02nm | |
| Baseline stability: | Baseline drift within 30min≤0.005Abs; The maximum instantaneous noise baseline within 30min≤0.005Abs |
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| Sensitivity: | Flame:Copper concentration of 2.0μg/ml standard solution absorbance measurements≥0.200Abs; Graphite Furnace:Copper concentration 20ng/mL,10μL injection volume, Measuring the absorbance of standard solution≥0.04Abs |
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| The detection limit: |
Flame:The detection limit for Cu≤0.008μg/ml; Graphite Furnace:The detection limit for copper≤25pg; Determination of the detection limit of blood lead≤1µg/L; Blood lead detection limit of quantitation≤3µg/L. |
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| Repeatability: | Flame:Copper measured RSD≤1%; Graphite Furnace:Copper measured RSD≤4%, the blood lead 100μg/L manual injector RSD≤5%,autosampler RSD≤3%. |
| Absorbance error: | Transmittance calibration value does not exceed ± 2% of the corresponding absorbance. |
| Edge wavelength noise: |
The wavelength range 190-900nm,arsenic 193.7nm, 852.1nm wavelength cesium were measured instantaneous noise<0.02Abs. |
| Background correction capability: |
Deuterium background correction,background absorption near 1Abs,the instrument has a 30 times higher than the background correction capability. |
| Optical slit: | Five-speed slit -band spectra:0.1,0.2,0.4,1.0,2.0nm; The wavelength shift caused by the deviation≤0.3nm. |
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