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Titolo:
A new quick solid-phase extraction method for the quantification of heterocyclic aromatic amines
Autore:
Vollenbroker, M; Eichner, K;
Indirizzi:
Univ Munster, Inst Food Chem, D-48149 Munster, Germany Univ Munster Munster Germany D-48149 Food Chem, D-48149 Munster, Germany
Titolo Testata:
EUROPEAN FOOD RESEARCH AND TECHNOLOGY
fascicolo: 1, volume: 212, anno: 2000,
pagine: 122 - 125
SICI:
1438-2377(2000)212:1<122:ANQSEM>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Keywords:
heterocyclic aromatic amines; aminoimidazoazaarenes; solid-phase extraction; meat extract;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
5
Recensione:
Indirizzi per estratti:
Indirizzo: Vollenbroker, M Univ Munster, Inst Food Chem, Corrensstr 45, D-48149 Munster, Germany Univ Munster Corrensstr 45 Munster Germany D-48149 ermany
Citazione:
M. Vollenbroker e K. Eichner, "A new quick solid-phase extraction method for the quantification of heterocyclic aromatic amines", EUR FOOD RE, 212(1), 2000, pp. 122-125

Abstract

A new solid-phase extraction (SPE) method using only one SPE cartridge is described as clean-up procedure for the determination of heterocyclic aromatic amines (HAAs). In particular, the polar HAAs imidazoquinolines and imidazoquinoxalines, which are well-known toxic compounds in thermally treated food, can be determined by this quick and simple method. For validation of the method meat extracts were analyzed. For determination of the percentagerecovery and standard deviation the beef extract was spiked (40 ng/g of each HAA) and analyzed 10 times. The polar HAAs were determined in this meat extract with a recoveries of 62% to 95% and standard deviations of 3% to 5%. The recovery rates of the less polar HAAs Harman and Norharman were much lower (25 +/- 5% to 32 +/- 5%). The limit of detection for polar and less polar HAAs was between 3 ng/g and 9 ng/g in the meat extract matrix. The method comprises extraction with methanolic NaOH, centrifugation and SPE usinga commercially available polystyrene copolymer cartridge. After different washing steps the eluate was analyzed by high-performance liquid chromatography with diode-array detection. The advantages of this new method are the reduced amounts of time and organic solvents required.

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Documento generato il 10/04/20 alle ore 15:59:45