摘要
研究火焰原子吸收光谱法（FAAS）测定金中镁的方法。试样经稀王水溶解，在冒三氧化硫烟的条件下，单质金析出，FAAS法测定镁含量。方法检出限为0．0069μg／mL，测定镁质量分数分别为0．0020％和0．00050％的试样相对标准偏差（n=6）分别为4．2％和6．9％，加标回收率为96％～99％。
The method of determination of magnesium in gold by flame atomic absorption spectrometry is studied. Dilute aqua-regia is used to digest sample. Elemental gold is precipitated when sulfur trioxide smoking, thenmagnesium is determined by FAAS. The detection limit of the method for Mg is 0.0069μg/mL and recovery is 96% -99% with precision of 4.2% -6.9% RSD （n =6）.
出处
《有色金属》
CSCD
北大核心
2009年第2期129-130,共2页
Nonferrous Metals
