DETERMINATION OF LEVELS OF LEAD CONTAMINATION IN FOOD AND FEED CROPS

被引：0

作者：

CABRERA, C ^{[1
]}

GALLEGO, C ^{[1
]}

LOPEZ, MC ^{[1
]}

LORENZO, ML ^{[1
]}

LILLO, E ^{[1
]}

机构：

[1] JUNTA ANDALUCIA,AGROALIMENTARIO GRANADA LAB,E-18014 GRANADA,SPAIN

来源：

JOURNAL OF AOAC INTERNATIONAL | 1994年 / 77卷 / 05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：

A rapid, precise procedure is described for the determination of lead in food and feed products with electrothermal atomic absorption spectrophotometry. Samples were mineralized in a microwave acid digestion bomb in the presence of nitric acid and vanadium pentoxide. Lead concentrations were determined directly from digested samples. The detection limit was 0.04 ng/mL. Accuracy and precision were checked against National Institute of Standards and Technology standard reference material. The analytical method was tested with 51 food and feed crops from Mediterranean zones in Spain and found to be suitable for these products. Lead concentrations in samples ranged from not detectable to 2.695 mu g/g (fresh weight).

引用

页码：1249 / 1252

页数：4

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