DETERMINATION OF SEVERAL ALPHA-AMINO-ACIDS BY FLOW-INJECTION AND CONTINUOUS-FLOW ANALYSIS WITH MEMBRANE EXTRACTION

Authors
FITSEVA NA STOIKOV II FITSEV IM ANTIPIN IS KONOVALOV AI
Citation
Na. Fitseva et al., DETERMINATION OF SEVERAL ALPHA-AMINO-ACIDS BY FLOW-INJECTION AND CONTINUOUS-FLOW ANALYSIS WITH MEMBRANE EXTRACTION, Journal of analytical chemistry, 53(7), 1998, pp. 641-644
Citations number
32
Categorie Soggetti
Chemistry Analytical
Journal title
Journal of analytical chemistry → ACNP
ISSN journal
10619348
Volume
53
Issue
7
Year of publication
1998
Pages
641 - 644
Database
ISI
SICI code
1061-9348(1998)53:7<641:DOSABF>2.0.ZU;2-Y
Abstract
Methods for determining several alpha-amino acids in systems of liquid membrane extraction were developed on the basis of flow analysis tech niques, namely, flow injection and continuous-flow analysis. Lipophili c alpha-aminophosphonate -dipentyl-1-(N-benzyl)aminocyclopentylphospho nate) impregnated into a teflon matrix was used as a carrier. Limits o f detection of DL-beta-phenyl-alpha-alanine were 4 x 10(-7) M (flow-in jection mode) and 7 x 10(-6) M (continuous-flow mode); the value for D L-valine was 9 x 10(-6) M (continuous-flow mode).