摘要
用自制的氢化物发生器研究了火焰原子吸收法测定锑的方法．结果表明：在２ｍｏｌ·Ｌ－１的ＨＣｌ介质中，锑浓度在４．４×１０－８～８．８×１０－７ｇ·ｍＬ－１范围内与吸光度值呈现良好的线性关系，对１．５×１０－７ｇ·ｍＬ－１的锑溶液平行测定１１次，相对标准偏差为６．７％．３０种异离子及有机物不干扰测定，回收率在９６％～１０６％之间．
A method for the determination of antimony with hydride generation atomic absorption spectrophotometry is described.In the solution of 2 mol·L -1 HCl,a linear plot of absorbance versus concentration is obtained in the range of 4.4×10 -8 ～8.8×10 -7 g·mL -1 of antimony.The relative standard deviation for eleven parallel determinations of a solution containing 1.5×10 -7 g·mL -1 of antimony is 6.7%.The recovery rates are 96%～106%.No significant interfere was found for 30 foreign ions and organic compounds.The results are satisfactory.
出处
《环境与开发》
1999年第1期46-47,共2页
Environment and Exploitation
关键词
锑
氢化原子吸收法
废水分析
Antimony
Hydride generation-atomic absorption spectrophotometry
Waste water
