X-ray fluorescence determination of manganese in FD&C blue no. 1

被引：0

作者：

Hepp, NM ^{[1
]}

机构：

[1] US FDA, Off Cosmet & Colors, Washington, DC 20204 USA

来源：

JOURNAL OF AOAC INTERNATIONAL | 1998年 / 81卷 / 01期

关键词：

D O I：

暂无

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An X-ray fluorescence (XRF) method was developed for determining manganese in FD&C Blue No. 1 from simply prepared pressed pellets. Results were compared with those of atomic absorption spectroscopy (AAS) of acid-digested or ashed samples. Levels of manganese determined by XRF and AAS were equivalent. The limit of detection (3 sigma) for the XRF method was 3 mu g manganese/g dye. The 95% confidence interval at the specification level was 100 + 10 mu g manganese/g dye.

引用

页码：89 / 92

页数：4

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