Studies on the Microwave Digestion When Determine Cu In milk Powder by Flame Atomic Absorption Spectrophotometry

被引：0

作者：

Zhao Guangyuan ^{[1
]}

Bo Li ^{[2
]}

机构：

[1] Zhengzhou Univ Light Ind, Sch Food & Biol Engn, Zhengzhou 450002, Peoples R China

[2] Henan Inst Sci & Technol, Coll Food Engn, Xinxiang 453003, Peoples R China

来源：

THEORY AND PRACTICE OF RISK ANALYSIS AND CRISIS RESPONSE, PROCEEDINGS | 2008年

关键词：

microwave digestion; flame atomic absorption spectrophotometry; milk powder;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

To investigate the conditions of microwave digestion for determining Cu in milk powder by flame atomic absorption spectrophotometry, the content of Cu in milk powder was determined by flame atomic absorption spectrophotometry after the samples were microwavely digested under different conditions. The optimum parameters for microwave digestion were obtained by the orthogonal test and were that, the volume of digestion solution was 8mL, the reagent proportion for HNO3 and H2O2 was 4:1, the digestion time was 7min, the digestion pressure was 2.9 Mpa and the digestion powder was 1000 W. The content of Cu in assayed milk powder was 0.0280mg/g. Microwave digestion was a time-saving and practical pretreatment of samples.

引用

页码：625 / +

页数：2