Detection of prostaglandins by high-performance liquid chromatography after conversion to p-(9-anthroyloxy)phenacyl esters
โ Scribed by Hassan Salari; Moira Yeung; Scott Douglas; Walter Morozowich
- Book ID
- 102987612
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 799 KB
- Volume
- 165
- Category
- Article
- ISSN
- 0003-2697
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โฆ Synopsis
p-(9-Anthroyloxy)phenacyl bromide (panacyl bromide) undergoes rapid reaction with the carboxyl group of prostaglandins in the presence of N,N-diisopropylethylamine in acetonitrile-tetrahydrofuran (4:1). The resulting prostaglandin panacyl esters are strongly uv absorbing with a lambda max at 253 nm and an epsilon of 174,280 in acetonitrile. The lower limit of detection of prostaglandins was approximately 200 pg with uv detection (254 nm) and about 30 pg with fluorescent detection (exitation 253 and emission 445 nm) using normal-phase HPLC. The reactivity of panacyl bromide with 23 prostaglandins as well as prostaglandins released by human lung tissues was investigated.
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A fluorometric high-performance liquid-chromatographic method is described for the determination of cyanate in human plasma. The method is based on the derivatization of cyanate with 2 -aminobenzoic acid (anthranilic acid), leading to a stable cyclic fluorescent product, \(2,4(1 \mathrm{H}, 3 \mathr