Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/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
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ISSN | 0021-9673 |
EISSN | 1873-3778 |
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 |
推荐引用方式 GB/T 7714 | 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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