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A selected ion monitoring method for the determination of pethidine and norpethidine in plasma. Comparison with a gas chromatographic method using electron capture detection
Author(s) -
Lindberg Claes,
Berg Margit,
Boréus Lars O.,
Hartvig Per,
Karlsson KarlErik,
Palmér Lena,
Thörnblad AnnMarie
Publication year - 1978
Publication title -
biomedical mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0306-042X
DOI - 10.1002/bms.1200050907
Subject(s) - pethidine , chromatography , chemistry , plasma , ion , anesthesia , medicine , physics , organic chemistry , quantum mechanics , analgesic
An analytical procedure for the simultaneous determination of pethidine and norpethidine in plasma by selected ion monitoring is described. The method has a capacity of 15–20 analyses per hour and can be used to determine pethidine and norphethidine down to 25 ng ml −1 and 5 ng ml −1 , respectively. The selected ion monitoring method has been compared with a method based on electron capture detection after analysis of pethidine and norpethidine in spiked plasma samples and in plasma from patients. The two methods are capable of performing selective and accurate determinations of pethidine and norpethidine, in the concentration ranges obtained in man after a single therapeutic dose of pethidine.