Rapid Determination of Arsenic in Water by Graphite Furnace Atomic Absorption Spectrometry
- VernacularTitle:快速测定水中砷的石墨炉原子吸收光谱法
- Author:
Shuting JIAO
- Publication Type:Journal Article
- Keywords:
Drinking water;
Purified water;
Atomic absorption spectrometry;
Arsenic
- From:
Journal of Environment and Health
1993;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To establish a method for direct determination of arsenic in water by graphite furnace atomic absorp-tion spectrometry.Methods The contents of arsenic in water samples were directly determined by graphite furnace atomic ab-sorption spectrometry under given conditions of wavelength,ashing and atomization temperature after adding an appropriate amount of nickel sulfate to water samples without enrichment,extraction or transformation of arsenic into hydrogen arsenide of the samples.Results The linear range of the method was0.005-0.200mg /L with a correlation coefficient of0.9996.The re-covery rate,relative standard deviation and detection limit were95.0%-105.0%,4.0%-7.5%and0.005mg /L respectively.Con clu sion Compared with the silver salt method and hydride generation-atomic absorption spectrometry,this method had many advantages such as simplicity of operation,rapidity and suitability for the analysis of batch samples.
