Novel separation method for highly sensitive speciation of cancerostatic platinum compounds by HPLC-ICP-MS

S. Hann, Zs Stefánka, K. Lenz, G. Stingeder

Research output: Contribution to journalArticle

79 Citations (Scopus)

Abstract

A high-performance liquid chromatography-inductively coupled plasma mass spectrometry (HPLC ICP-MS) method is presented for analysis of cisplatin, monoaquacisplatin, diaquacisplatin, carboplatin, and oxaliplatin in biological and environmental samples. Chromatographic separation was achieved on pentafluorophenylpropyl-functionalized silica gel. For cisplatin, carboplatin, and oxaliplatin limits of detection of 0.09, 0.10, and 0.15 μg L -1, respectively, were calculated at m/z 194, using aqueous standard solutions. (3 μL injection volume). The method was utilized for model experiments studying the stability of carboplatin and oxaliplatin at different chloride concentrations simulating wastewater and surface water conditions. It was found that a high fraction of carboplatin is stable in ultrapure water and in solutions containing 1.5 mol L-1 Cl-, whereas oxaliplatin degradation was increased by increasing the chloride concentration. In order to support the assessment of oxaliplatin eco-toxicology, the method was tested for speciation of patient urine. The urine sample contained more than 17 different reaction products, which demonstrates the extensive biotransformation of the compound. In a second step of the study the method was successfully evaluated for monitoring cancerostatic platinum compounds in hospital waste water.

Original languageEnglish
Pages (from-to)405-412
Number of pages8
JournalAnalytical and Bioanalytical Chemistry
Volume381
Issue number2
DOIs
Publication statusPublished - Jan 1 2005

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Keywords

  • Carboplatin
  • Cisplatin
  • Oxaliplatin
  • Stability study
  • Urine
  • Wastewater

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry

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