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M9490108.TXT
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1994-09-03
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Document 0108
DOCN M9490108
TI Determination of L-2-oxothiazolidine-4-carboxylic acid (Procysteine) in
human plasma by high-performance liquid chromatography.
DT 9411
AU Webb LE; Gechman M; Story K; Baxter Healthcare Corporation, Round Lake,
IL 60073.
SO J Chromatogr B Biomed Appl. 1994 Apr 1;654(2):257-62. Unique Identifier
: AIDSLINE MED/94319483
AB A new high-performance liquid chromatographic (HPLC) method has been
developed for the determination of the cysteine prodrug,
L-2-oxothiazolidine-4-carboxylic acid (Procysteine), in human plasma.
Samples were mixed with 5% metaphosphoric acid and the supernatants
chromatographed using a reversed-phase analytical column. Procysteine
was detected spectrophotometrically at 230 nm and quantitated by
comparison with a standard curve of known amounts of Procysteine
(20-1000 microM) in plasma. The coefficients of variation for 48.6
microM and 676 microM control pools were 6.5 and 4.0% respectively (n =
46). Deviations from the expected concentrations were less than 2%. The
method has been utilized to evaluate the pharmacokinetics of a wide
range of oral and intravenous doses.
DE Administration, Oral Chromatography, High Pressure Liquid
Chromatography, Ion Exchange Human HIV Infections/BLOOD Indicators
and Reagents Injections, Intravenous Quality Control Reference
Standards Respiratory Distress Syndrome, Adult/BLOOD
Spectrophotometry, Ultraviolet Thiazoles/ADMINISTRATION &
DOSAGE/*BLOOD/PHARMACOKINETICS JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).