摘要
探讨了用原子吸收光谱直接分析饮料中砷时其背景吸收及基体干扰对测定结果的影响。结果表明，１ｍＬ的样品中加入改进剂１．５×１０－３氯化钯０．５ｍＬ，用１％硝酸定容至１０ｍＬ，可以克服背景吸收及基体干扰，且回收率高达９８．９６×１０－２。如果样品不多，用标准加入法测定，结果则更准。
The effects of background absorption and matrix interference on the determined valueswere studied in direct determination of As content in drink by AAS.The results showed thatthe effects of background absorption and matrix interference may be overcame by addition ofpalladium chloride.The recovery of the method was as high as 98.96×10-2.
出处
《广东微量元素科学》
CAS
1996年第9期64-67,共4页
Trace Elements Science
关键词
饮料
砷
背景吸收
干扰
原子吸收光谱
Drink
As
Background absorption
Matrix interference.
