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Journal
2011 | 9 | 5 | 825-833
Article title

Determination of N-methyl-2-pyrrolidone and its metabolites in urine by micellar electrokinetic chromatography

Content
Title variants
Languages of publication
EN
Abstracts
EN
A fast and accurate micellar electrokinetic capillary chromatography (MEKC) method was developed for monitoring N-methyl-2-pyrrolidone (NMP) exposure. Baseline separation of NMP and its main metabolites: 5-hydroxy-N-methyl-2-pyrrolidone (5HNMP), N-methylsuccinimide (MSI), 2-hydroxy-N-methylsuccinimide (2HMSI), and 2-pyrrolidone (2P) was obtained within 6 min in an uncoated fused silica capillary using 5 mM phosphate buffer and 140 mM sodium dodecyl sulfate (pH 7.1) as background electrolyte (BGE). On-line UV-detection was performed at 200 nm and the applied electric field was 400 V cm−1. Possible interference of BGE-induced system peaks on separation was investigated by computer simulation and no such interference was observed. The developed MEKC method combined with solid phase extraction for sample preparation was successfully applied to the analysis of urine of rats exposed to NMP. The urinary excretion was determined in 0–6 h and 6–24 h specimens collected after an intragastic administration of 308 mg NMP / kg rat body weight. The results of NMP disposition kinetics in rat urine are reported for NMP and metabolites. [...]
Publisher

Journal
Year
Volume
9
Issue
5
Pages
825-833
Physical description
Dates
published
1 - 10 - 2011
online
24 - 7 - 2011
Contributors
author
  • Finnish Institute of Occupational Health, FI-00250, Helsinki, Finland, simo.porras@ttl.fi
  • the Finnish Institute of Occupational Health, Helsinki, Finland
  • Laboratory of Analytical Chemistry, Department of Chemistry, University of Helsinki, FI-00014, Helsinki, Finland, susanne.wiedmer@helsinki.fi
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_s11532-011-0062-2
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