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  • Title: Liquid chromatographic determination of sodium mercaptoundecahydrododecaborate in rat urine and plasma after precolumn derivatization.
    Author: Abu-Izza K, Lu DR.
    Journal: J Chromatogr B Biomed Appl; 1994 Oct 14; 660(2):347-52. PubMed ID: 7866525.
    Abstract:
    A high-performance liquid chromatographic (HPLC) method was developed for the determination of disodium mercaptoundecahydrododecaborate (BSH) in biological fluids. Monobromobimane was used as a precolumn derivatizing agent. A stable derivative was obtained. The derivative was separated on a C18 column using reversed-phase ion-pairing chromatography and detected by a spectrophotometric detector at 373 nm. The detection limit was 200 ng/ml (0.1 ppm boron). Calibration curves were prepared for rat urine and plasma samples. The calibration curves were linear in the range of 1 microgram/ml to 100 micrograms/ml for urine samples and 0.2 micrograms/ml to 50 micrograms/ml for plasma samples.
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