Determination of Magnesium in Drinking Water by Flame Atomic Emission Spectrometry
- VernacularTitle:饮用水中镁的火焰原子发射光谱测定法
- Author:
Jun LIU
;
Xiaolong LI
- Publication Type:Journal Article
- Keywords:
Flame atomic emission spectrometry;
Drinking water;
Magnesium;
Determination
- From:
Journal of Environment and Health
1993;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
ve To explore a method for determination of magnesium in drinking water by air-acetylene flame atomic emission spectrometry. Methods The content of magnesium in drinking water was directly determined by air-acetylene flame atomic emission spectrometry using hydrochloric acid as media and lanthanum solution as masking agent. Results The concentrations of magnesium in drinking water were possitively correlated with the intensities of flame atomic emission spectrum in the range of 5~200?g/ml with a regression equation of A = 0.000 87C+0.0019(r=0.992 2). The detection limit was 5.0?g/ml. The recovery rates of a standard material added-water samples were 101.8% ~ 107.5% . The relative standard deviation was not more than 3.3% . The com-monly coexisting ions with a certain concentrations, such as K, Na, Ca, Zn, Fe, Mn, Cd,Pb and Cu, didn't interfere the determination of magnesium in water sample. Conclusion This method could be applied to determination of magne-sium in drinking water.
