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A novel method to determine semi-volatile organic compound(semi-VOC) was established by HPLC coupled with a partly-immersed three-phase hollow fiber liquid phase microextraction (PI-LPME) technique for sample preparation. The influence of extraction parameters including organic solvent, pH of donor and acceptor phase, extraction time, the proportion of hollow fiber in gas and liquid were optimized...
A novel method for fast determination of nicotine in hunman plasma and urine was introduced by using high performance liquid chromatography ( HPLC) coupled with ionic liquid based liquid phase microextraction (LPME) technique for sample preparation. Some effective parameters on extraction including extraction solvent, pH of donor phase, extraction time, extraction temperature and stirring speed was...
A environmentally friendly and powerful technique was used for determination of parathion in water samples using hollow fiber supported liquid phase microextraction (LPME) followed by high performance liquid chromatography (HPLC). Some effective parameters on extraction, such as extraction solvent, pH of donor phase, extraction time, extraction temperature and stirring speed were investigated. Under...
A rapid, effective and environmentally friendly method to determine parathion in water by HPLC with ionic liquid-based solvent bar microextraction (SBME) was introduced. The influence of extraction parameters including extraction solvent, pH of donor phase, extraction time, extraction temperature and stirring speed was investigated. The parathion enrichment factor was 120 under optimum conditions...
This test studied the behaviors of adsorbing uranium of attapulgite. Meanwhile the exchange column filled with attapulgite was used to treat the wastewater containing uranium in laboratory. The percentage of removal of U was above 99.95% and the residual concentration of uranium was below the state specified discharge standard (0.05 mg/l). The uranium adsorbed in column could be desorbed by 5% HCl...
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