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R,S-Oxazepam and R,S-temazepam can be separated in their enantiomers by means of a chiral AGP column. The corresponding R- and S-glucuronide conjugates can be separated on a normal reversed-phase C18 column. Man conjugates the S-enantiomer of oxazepam and temazepam both better than the R-enantiomer. The urinary recovery of the glucuronides following either R,S,-oxazepam or R,S-temazepam almost amounts to 100% of the dose administered.

Phenolic tsetse attractants in host urine were shown to form gradually from proattractants identified as a mixture of glucuronates and sulphates. The breakdown of proattractants is predominantly due to microbial activity. Of the eight bacteria isolated from buffalo urine three have demonstrated varying ability to give rise to free phenols the formation of which was monitored by observing the build-up of 4-cresol by means of gas chromatography. These observations may provide a useful biotechnological model for controlled release of these semiochemicals in the field.

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HPLC analysis and pharmacokinetics of the enantiomers of R,S-oxazepam and R,S-temazepam with their corresponding glucuronide conjugates in urine and plasma of man

The origin of phenolic tsetse attractants from host urine: Studies on the pro-attractants and microbes involved

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2 results

HPLC analysis and pharmacokinetics of the enantiomers of R,S-oxazepam and R,S-temazepam with their corresponding glucuronide conjugates in urine and plasma of man

The origin of phenolic tsetse attractants from host urine: Studies on the pro-attractants and microbes involved