摘要
研究了石墨炉原子吸收光谱法测定氯化钯中痕量砷的分析方法。考察了基体氯化钯的影响，选择了适宜的石墨炉升温程序；提出了用抗坏血酸基体改进剂，消除了基体的干扰。检出限可达５ μｇ／Ｌ，检测范围为２．５～５０μｇ／ｇ，标准加料回收率为９６％ ～１０２％ 。ＲＳＤ为７．４％ （ｎ＝ ８）。
The analytical method for trace As in PdCl 2 catalyst by GFAAS was studied.The optimum parameters for graphite furnace with AAS were selected.Vitamin C was used as a matrix modifier.The proposed method is fast,convenient and has less interferences.The limit of detection is 5μg/L and the linear range is 2.5～50ng/g.The method has been used to determine trace As in PdCl 2 with satisfactory results.
出处
《分析试验室》
CAS
CSCD
2000年第1期33-35,共3页
Chinese Journal of Analysis Laboratory
