Determination of several α-amino acids by flow injection and continuous-flow analysis with membrane extraction

被引：0
|
作者：
Fitseva, NA
Stoikov, II
Fitsev, IM
Antipin, IS
Konovalov, AI
机构：
[1] Kazan State Univ, Dept Chem, Tatarstan 420008, Russia
[2] Minist Home Affairs Tatarstan Republ, Expert Criminalist Bur, Tatarstan 420503, Russia
来源：
JOURNAL OF ANALYTICAL CHEMISTRY | 1998年 / 53卷 / 07期
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D O I：
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中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Methods for determining several alpha-amino acids in systems of liquid membrane extraction were developed on the basis of flow analysis techniques, namely, flow injection and continuous-flow analysis. Lipophilic alpha-aminophosphonate (O,O-dipentyl-1-(N-benzyl)aminocyclopentylphosphonate) impregnated into a teflon matrix was used as a carrier. Limits of detection of DL-beta-phenyl-alpha-alanine were 4 x 10(-7) M (flow-injection mode) and 7 x 10(-6) M (continuous-flow mode); the value for DL-valine was 9 x 10(-6) M (continuous-flow mode).
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页码：641 / 644
页数：4
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