Study on a novel circulating cooling solid-phase microextraction method.
A novel solid-phase microextraction (SPME) setup, circulating cooling solid-phase microextraction (CC-SPME), is developed for determining organochlorine pesticides (OCPs) in water. The linearity area of this method is 0.5-120 microg/l, its RSD value is less than 10% and detection limit is in the low ng/l when it is used to detect gamma-hexachlorocyclohexane, which is better than traditional headspace SPME (HS-SPME) and direct immersion SPME (DI-SPME) methods. The influence of factors such as pH, ionic intensity, adsorption time, and adsorption temperature were also investigated, respectively.
Liao
Liyan
L
College of Environmental Science and Engineering, Shanghai Jiao Tong University, Dongchuan Road 800, Minhang, Shanghai, China.
Yang
Ji
J
Wang
Yalin
Y
Sun
Tonghua
T
Jia
Jinping
J
D000327:Adsorption; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D006843:Hydrocarbons, Chlorinated / Q000032:analysis*; D006863:Hydrogen-Ion Concentration; D008832:Microchemistry; D009994:Osmolar Concentration; D010575:Pesticides / Q000032:analysis*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013696:Temperature; D013997:Time Factors; D014874:Water Pollutants, Chemical / Q000032:analysis*
D006843:Hydrocarbons, Chlorinated; D010575:Pesticides; D014874:Water Pollutants, Chemical