Investigation of various extractants for the analysis of aflatoxin B1 in different food and feed matrices

被引：72

作者：

Stroka, J ^{[1
]}

Petz, M ^{[1
]}

Joerissen, U ^{[1
]}

Anklam, E ^{[1
]}

机构：

[1] Commiss European Communities, DG JRC, Inst Hlth & Consumer Protect, I-21020 Ispra, Italy

来源：

FOOD ADDITIVES AND CONTAMINANTS | 1999年 / 16卷 / 08期

关键词：

aflatoxins; extractants; analysis; food matrices;

D O I：

10.1080/026520399283902

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Various extractants were investigated concerning their suitability, for aflatoxin B-1 determinations in different matrices including spices, infant formula and animal feed employing an immunoaffinity clean-up procedure. It was shown thar the use of aqueous acetonitrile extractants was limited due to the fact that dry sample material can absorb significant amounts of water from the extractant. This can result in recoveries that ave too high and therefore in incorrect values for the aflatoxin concentration if aliquots are taken for further analysis. A correction of the results by recovery calculation using spiked blank material is unsuitable, since material from the same group of food (e.g. paprika powder) or feed can vary significantly in the recovery values. Therefore it is recommended that aqueous methanol extractants are used since no significant interaction with matrix constituents was observed. In addition, aqueous acetone extractants are a useful alternative with some limitations.

引用

页码：331 / 338

页数：8

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