Spiking of performance reference compounds in low density polyethylene and silicone passive water samplers
Spiking of performance reference compounds in low density polyethylene and silicone passive water samplers
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DOI：
10.1016/s0045-6535(01)00200-4
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发表时间：
2002-03-01
期刊：
影响因子：
8.8
通讯作者：
van Weerlee, EM
中科院分区：
文献类型：
--
作者：
Booij, K;Smedes, F;van Weerlee, EM
描述了将性能参比化合物（PRC）加标到低密度聚乙烯（LDPE）和硅酮聚合物中的方法。该方法基于聚合物在PRC的水/甲醇溶液中的平衡。对于疏水性在3.9 < logK（ow）< 7.7范围内的全氘代多环芳烃（PAH）和多氯联苯（PCB），平衡时间从几分钟到几小时不等。甲醇-水比率为80/20（v/v）时获得最佳结果。该方法允许使用PRCs以类似于半透膜装置（SPMD）的方式原位校准这些无溶剂取样阶段的吸收动力学。(C)2002爱思唯尔科技有限公司。保留所有权利。
A method for spiking performance reference compounds (PRCs) into low density polyethylene (LDPE) and silicone polymers is described. This method is based on equilibration of the polymers in aqueous/methanolic solutions of PRCs. Equilibration times range from minutes to hours for perdeuterated polyaromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) with a hydrophobicity in the range 3.9 < logK(ow) < 7.7. Best results were obtained for methanol-water ratios of 80/20 (v/v). The method allows for the use of PRCs for in situ calibration of the uptake kinetics of these solvent-free sampling phases in a similar way as for semipermeable membrane devices (SPMDs). (C) 2002 Elsevier Science Ltd. All rights reserved.