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[Ion-pair solid-phase extraction (SPE) and HPLC analysis of paraquat in biological sample]
Rui-hua Wang1, Shao-ming Su, Guang-ming Qin
1Forensic Medicine School of Kunming Medical College, Kunming 650031, China.
Objective:
To establish an HPLC method for the determination of Paraquat in biological samples.
Methods:
Paraquat in biological samples was extracted by C18 columns which were pre-treated with cetyl-trimethyl ammonium bromide (CTAB) and soudium dodecyl sulphate (SDS), and analysed by HPLC/DAD.
Results:
The detection limit of the method was 1 ng x mL(-1), and the average recoveries were 81%-94%.
Conclusion:
The method can be used to analysis of paraquat in biological samples.
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