石墨炉原子吸收光谱法测定螺旋藻中铅的含量  

Determination of Lead in Spirulina Powder by GFAAS

作　　者：李玉珍[1] 陈日来 林燕奎 陈晓凯[1] 

机构地区：[1]广东医学院附属福田医院,深圳518033 [2]深圳市梅林医院,深圳518049 [3]深圳检验检疫局,深圳518067

出　　处：《药物分析杂志》2005年第7期866-868,共3页Chinese Journal of Pharmaceutical Analysis

摘　　要：目的:建立石墨炉原子吸收光谱法测定螺旋藻干粉中铅的含量。方法:通过优化石墨炉升温程序和基体改进剂,采用悬浮液直接进样标准加入法测定。结果:与灰化法、微波消化法比较无显著性差异,实验室间比对结果基本一致,方法回收率在94.5%-98.3%。结论:本方法是一种简单,准确而又稳定的检测方法。Objective:To establish a method of determination of lead in spirulina powder by GFAAS with suspended solution sampling. Methods:The determination was made by standard addition method with optimizing the GFAAS temp - control program and matrix modifier. Results:The results showed no difference by t - test comparing with results obtained by incineration and microwave digestion (national standard substance was compared) , the results from other labs was consistent basically with ours,a recovery of 94.5%-98.3%.Conclusion:The method of determination is simple,accurate and stabilization.

关 键 词：石墨炉原子吸收光谱法 螺旋藻 测定 含量 铅 基体改进剂 标准加入法 显著性差异 微波消化法 升温程序 直接进样 比对结果 实验室间 检测方法 悬浮液 灰化法 回收率 

分 类 号：R446.112[医药卫生—诊断学] R282.71[医药卫生—临床医学]