摘要
研究了铋盐共沉淀分离富集及火焰法测定铅的最佳备件，在pH8.9的溶液中，用氨水定量沉淀铅。样品中微量铅测定结果的相对标准偏差为1.2％-1.8％，加标回收率为98.8％-101.5％。方法可用于酱中微量铅的测定，且共存物不产生干扰。
The method of bismith salt coprecipitation separation enrichment was studied, and the conditions of determination lead by flame atom absorption were optimized. The method was used to the determination of the trace lead in sauce, and the concurrents were no disturbance. The RSD was 1.2% - 1.8%, and the recoveries were 98.8% - 101.5%.
出处
《化学分析计量》
CAS
2008年第3期60-61,共2页
Chemical Analysis And Meterage
关键词
富集
原子吸收
酱
铅
concentrates, AAS, sauce, lead
