Determination of selenoamino acids by gas chromatography-mass spectrometry
Küçük Resim Yok
Tarih
2004
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Bv
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The application of the recently introduced ethylchloroformate derivatization method for the separation and determination of selenomethionine and selenocystein in selenium-enriched yeast and yeast-free tablets by means of a gas chromatography-mass spectrometry (GC-MS) system has been studied. The efficiency of three methods for the extraction of selenomethionine from the tablets were compared. Total selenium content of the same tablets were measured using inductively coupled plasma (ICP)-MS and it was found that in the selenized yeast tablets about 80% of the total selenium is present as selenomethionine. The results were in agreement with the values in the labels and with the literature. The accuracy of the total selenium analysis was controlled by the analysis of a reference material. (C) 2003 Elsevier B.V. All rights reserved.
Açıklama
3rd Aegean Analytical Chemistry Days -- SEP 29-OCT 03, 2002 -- LEVOS, GREECE
Anahtar Kelimeler
gas chromatography-mass spectrometry (GC-MS), selenomethionine, selenocysteine, selenocystine, nutritional supplements, yeast
Kaynak
Analytica Chimica Acta
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
505
Sayı
1
