Study on a novel circulating cooling solid-phase microextraction method |
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| Authors: | Liao Liyan Yang Ji Wang Yalin Sun Tonghua Jia Jinping |
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| Institution: | College of Environmental Science and Engineering, Shanghai Jiao Tong University, Dongchuan Road 800, Minhang, Shanghai, China. |
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| Abstract: | 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. |
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