Shandong Binzhou Zhiyuan Biotechnology Co.,Ltd
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    Shandong Binzhou Zhiyuan Biotechnology Co.,Ltd

    Tel: +86-543-8128044

    Fax: +86-543-2605568

    Email: info@cydextrin.com

    Add: Boxing Economic Development Zone, Binzhou, Shandong, China

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Hydroxypropyl Beta Cyclodextrin As Non Exhaustive Extractant For Organochlorine Pesticides And Polychlorinated Biphenyls In Muck Soil

Hydroxypropyl-beta-cyclodextrin (HPCD) was used as a non-exhaustive extractant for organochlorine pesticides (OCs) and polychlorinated biphenyls (PCBs) in muck soil. An optimized extraction method was developed which involved using a HPCD to soil mass ratio of 5.8 with a single extraction period of 20 h. An aging experiment was performed by spiking a muck soil with (13)C-labeled OCs and non-labeled PCBs. The soil was extracted with the optimized HPCD method and Soxhlet apparatus with dichloromethane over 550 d periodically. The HPCD extractability of the spiked OCs was greater than of the native OCs. A decreased in HPCD extractability was observed for the spiked OCs after 550 d of aging and their extractability approached those of the natives. The partition coefficient between HPCD and soil (logK(CD-Soil)) was negatively correlated with the octanol-water partition coefficient (logK(OW)) with r(2)=0.67 and p<0.05.

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Address: Boxing Economic Development Zone, Binzhou, Shandong, China
Tel: +86-0543-8128044
 Fax:+86-543-2605568
 E-mail:info@cydextrin.com
Shandong Binzhou Zhiyuan Biotechnology Co.,Ltd
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