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DOI10.1016/j.chroma.2016.04.072
Calibration of nylon organic chemical integrative samplers and sentinel samplers for quantitative measurement of pulsed aquatic exposures
Morrison, Shane A.; Belden, Jason B.
通讯作者Morrison, Shane A.
来源期刊JOURNAL OF CHROMATOGRAPHY A
ISSN0021-9673
EISSN1873-3778
出版年2016
卷号1449页码:109-117
英文摘要

Environmental exposures often occur through short, pulsed events; therefore, the ability to accurately measure these toxicologically-relevant concentrations is important. Three different integrative passive sampler configurations were evaluated under different flow and pulsed exposure conditions for the measurement of current-use pesticides (n = 19), polyaromatic hydrocarbons (n = 10), and personal care products (n = 5) spanning a broad range of hydrophobicities (log Kow 1.5-7.6). Two modified POCIS-style samplers were investigated using macroporous nylon mesh membranes (35 pm pores) and two different sorbent materials (i.e. Oasis HLB and Dowex Optipore L-493). A recently developed design, the Sentinel Sampler (ABS Materials), utilizing Osorb media enclosed within stainless steel mesh (145 mu m pores), was also investigated. Relatively high sampling rates (Rs) were achieved for all sampler configurations during the short eight-day exposure (4300-27 mL/d). Under flow conditions, median Rs were approximately 5-10 times higher for POCIS-style samplers and 27 times higher for Sentinel Samplers, as compared to static conditions. The ability of samplers to rapidly measure hydrophobic contaminants may be a trade off with increased flow dependence. Analyte accumulation was integrative under pulsed and continuous exposures for POCIS-style samplers with mean difference between treatments of 11% and 33%; however, accumulation into Sentinel Samplers was more variable. Collectively, results show that reducing membrane limitations allows for rapid, integrative accumulation of a broad range of analytes even under pulsed exposures. As such, these sampler designs may be suitable for monitoring environmental substances that have short aquatic half-lives. (C) 2016 Elsevier B.V. All rights reserved..


英文关键词Calibration P assive sampling Pesticides PAHs Personal care products Pulsed exposure
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000376694500014
WOS关键词SEMIPERMEABLE-MEMBRANE DEVICES ; REFERENCE COMPOUND APPROACH ; PASSIVE SAMPLING DEVICES ; IN-SITU ; POCIS ; WATER ; PERFORMANCE ; PESTICIDES ; TOXICITY ; PHARMACEUTICALS
WOS类目Biochemical Research Methods ; Chemistry, Analytical
WOS研究方向Biochemistry & Molecular Biology ; Chemistry
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/194281
作者单位Oklahoma State Univ, Dept Integrat Biol, 501 Life Sci West, Stillwater, OK 74078 USA
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Morrison, Shane A.,Belden, Jason B.. Calibration of nylon organic chemical integrative samplers and sentinel samplers for quantitative measurement of pulsed aquatic exposures[J],2016,1449:109-117.
APA Morrison, Shane A.,&Belden, Jason B..(2016).Calibration of nylon organic chemical integrative samplers and sentinel samplers for quantitative measurement of pulsed aquatic exposures.JOURNAL OF CHROMATOGRAPHY A,1449,109-117.
MLA Morrison, Shane A.,et al."Calibration of nylon organic chemical integrative samplers and sentinel samplers for quantitative measurement of pulsed aquatic exposures".JOURNAL OF CHROMATOGRAPHY A 1449(2016):109-117.
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