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By improving chromatographic resolution and Mass Spectrometry scanning method, an isotope dilution method which can detect Naphthalene, Acenaphthene, Phenanthrene and Chrysene in water samples is established. Compared with Liquid-liquid Extraction, double Purification of solid phase extraction column and Silica Gel Column is more suitable for large volume injection. Their retention behavior of solid...
The proper extraction conditions for phenol, o-chlorophenol and o-nitrophenol were investigated by using the liquid-solid extraction system composed of Tween 80-sodium citrate-H2O. 10.5% (v/v) Tween 80, 2.6000 g·l-1 sodium citrate, extraction acidity of pH 5.95 had been found optimal for extraction of phenolic compounds. Under the above-mentioned conditions the once average recoveries of phenol, o-chlorophenol...
Removal of as(V) and as(III) from water using hydrous cerie oxide, CeO2ldrxH2O (HCO) was investigated under different pH and As loading conditions, using batch equilibrium adsorption and FTIR methods. Adsorption of both As(V) and As(III) anions was virtually independent of pH and up to 100% removal can be achieved in the lower concentration range 0.5 - 5.0 mg L-1 As at sorbent dosage of 1.0 g L-1...
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