摘要
本文采用悬浮进样火焰原子吸收光谱法测定黄棕壤中微量铜 ,并对样品的研磨时间、悬浮液浓度、酸度选择及校正方法等进行了探讨。实验表明 :该法的检出限 (K =3)为 0 .12μg· g-1,精密度 (RSD)为4.6 % ,加标回收率为 98～ 10 6 % ,对水系沉积物 GSD5、GSD6标准样品测定结果与推荐值吻合。
The paper introduces the determination of microcopper in yellow brown soils by slurry sampling & flame atomic absorption spectrometry, and also discusses the grinding time of samples and slurry concentration and acidity selection and calibration method. The test results show that the checkout limit is 0.12μg·g -1 (k=3), and the precision (RSD) is 4.6%, and the labeled rates of recovery ranges in 98～106%, and determination data of river system deposit standard samples GSD 5, GSD 6 are coincident with the recommended values.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2000年第4期27-29,共3页
Environmental Science & Technology
基金
地质矿产部重点科技项目资助!(NO.95 0 5 6 0 1- 2 )
关键词
悬浮液
FASS
黄棕壤
铜
土壤监测
重金属污染
Slurry sampling
Flame atomic absorption spectrometry
Yellow brown soils
Copper
