Biomonitoring of perfluorinated compounds in a drop of blood.
Biomonitoring of perfluorinated compounds in a drop of blood.
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DOI:
10.1021/acs.est.5b01442
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发表时间:
2015-06-02
影响因子:
11.4
通讯作者:
Wang, Daojing
中科院分区:
文献类型:
--
作者:
Mao, Pan;Wang, Daojing
Biomonitoring of pollutants and their metabolites and derivatives using biofluids provides new opportunities for spatiotemporal assessment of human risks to environmental exposures. Perfluorinated compounds (PFCs) have been used widely in industry and pose significant environmental concerns due to their stability and bioaccumulation in humans and animals. However, current methods for extraction and measurement of PFCs require relatively large volumes (over one hundred microliters) of blood samples, and therefore, are not suitable for frequent blood sampling and longitudinal biomonitoring of PFCs. We have developed a new microassay, enabled by our silicon microfluidic chip platform, for analyzing PFCs in small volumes (less than five microliters) of blood. Our assay integrates on-chip solid-phase extraction (SPE) with online nanoflow liquid chromatography-electrospray ionization-mass spectrometry (nanoLC-ESI-MS) detection. We demonstrated high sample recovery, excellent interday and intraday accuracy and precision, and a limit of detection down to 50 femtogram of PFCs, in one microliter of human plasma. We validated our assay performance using pooled human plasma and NIST SRM 1950 samples. Our microfluidic chip-based assay may enable frequent longitudinal biomonitoring of PFCs and other environmental toxins using a finger prick of blood, thereby providing new insights into their bioaccumulation, bioavailability, and toxicity.
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影响因子:
7.4
作者:
Phinney KW;Ballihaut G;Bedner M;Benford BS;Camara JE;Christopher SJ;Davis WC;Dodder NG;Eppe G;Lang BE;Long SE;Lowenthal MS;McGaw EA;Murphy KE;Nelson BC;Prendergast JL;Reiner JL;Rimmer CA;Sander LC;Schantz MM;Sharpless KE;Sniegoski LT;Tai SS;Thomas JB;Vetter TW;Welch MJ;Wise SA;Wood LJ;Guthrie WF;Hagwood CR;Leigh SD;Yen JH;Zhang NF;Chaudhary-Webb M;Chen H;Fazili Z;LaVoie DJ;McCoy LF;Momin SS;Paladugula N;Pendergrast EC;Pfeiffer CM;Powers CD;Rabinowitz D;Rybak ME;Schleicher RL;Toombs BM;Xu M;Zhang M;Castle AL
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17.3
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Bodovitz, Steven
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通讯作者:
Swenberg, James