Simultaneous separation of chlorinated/brominated dioxins, polychlorinated biphenyls, polybrominated diphenyl ethers and their methoxylated derivatives from hydroxylated analogues on molecularly imprinted polymers prior to gas/liquid chromatography and mass spectrometry

Roszko, Marek; Szymczyk, Krystyna; Jędrzejczak, Renata

doi:10.1016/j.talanta.2015.04.070

Cited by 25 publications

(25 citation statements)

References 49 publications

(67 reference statements)

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“…The analytical procedure was based on a slightly modified procedure reported previously [46]. Briefly, 20 g of sample were spiked with 13 C 12 -labeled internal standards of PCB and PBDEs (50 pg each).…”

Section: Methodsmentioning

confidence: 99%

“…The instrument setup was identical as reported previously [46]. Briefly, a Thermo-Finningan Trace GC Ultra gas chromatograph (Austin, TX, USA) connected via a heated transfer line with a Polaris Q low-resolution ion-trap mass spectrometer (Austin, TX, USA) was equipped with a Programmable Temperature Vaporizer (PTV) based injector, TriPlus Autosampler (Austin, TX, USA).…”

Section: Methodsmentioning

confidence: 99%

“…In all cases helium was used as a carrier gas at a constant flow of 1.5 ml min -1 . Instrument operational parameters used in the analyses of PCB, PBDE were published previously [46]. Samples were introduced via PTV injector operated in solvent split mode as reported previously.…”

Section: Methodsmentioning

confidence: 99%

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Levels of Selected Persistent Organic Pollutants (PCB, PBDE) and Pesticides in Honey Bee Pollen Sampled in Poland

et al. 2016

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Chemical plant protection is a commonly discussed factor potentially responsible for decline in pollinators and other beneficial insect populations. Various groups of chemicals including persistent organic pollutants could impact a bee colony’s welfare and are reported to be present in bee tissue and apiary products. The aim of this work was to evaluate the presence of selected persistent organic pollutant and pesticide residues in bee pollen originating from different geographical regions of Poland. Pesticide residues were identified in 60% of tested bee pollen samples. The compounds identified were mainly active ingredients of fungicide preparations. Insecticide active ingredients were up to 30% of the identified residues. The triazole fungicide tebuconazole and the neonicotinoid insecticide thiacloprid were the most frequently found pesticides in pollen. The highest pesticide concentration was determined for prothioconazole (356 μg kg-1). Mean concentrations of chlorinated biphenyls–EC6 and EC12 were 194 pg g-1 and 74 pg g-1, respectively. CB # 28 has the greatest share in the EC6 profile (mean 61 pg g−1, 31% contribution). Relatively high contributions were also observed for CBs # 101 (35 pg g−1, 18%), # 138 (36 pg g−1, 19%) and # 153 (33 pg g−1, 17%). CB # 114 and 118 have the highest share in the dioxin-like biphenyls fraction with mean concentrations of 17.6 and 37.6 pg g−1 (respectively 23 and 50%). Mean calculated concentrations of 39 polybrominated diphenyl ether congeners (Σ39 BDE) were 20 ± 27.7 pg g−1. High variability was observed between maximal and minimal determined concentration values. Individual BDEs were found at different frequencies and varying concentration levels. BDEs # 47, 75 and 99 dominated the profile with average concentrations of 3 pg g−1, 3.1 pg g−1, and 2.9 pg g−1, respectively.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Levels of Selected Persistent Organic Pollutants (PCB, PBDE) and Pesticides in Honey Bee Pollen Sampled in Poland

et al. 2016

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“…[33,34] Pilehvar et al developed as ensing system for the detection of OH-PCBsi nh uman serum by employing an electrode modified with aptamer-immobilized carbon nanotubes. [31,32] Herein, we report the synthesis of aptamer-functionalized magnetic core-shell COF materials. Compared with electrochemical methods, LC-MS exhibits higher sensitivity and has become am ore powerful analytical technique for the determination of OH-PCBs.…”

Section: Introductionmentioning

confidence: 99%

“…[30,31] In humans and animals, PCBs can be metabolizedt oh ydroxylated PCBs (OH-PCBs) by cytochrome P450-mediated oxidation. [32] At present,t here are some reports on the determination of OH-PCBs in human blood and tissue samples. [33,34] Pilehvar et al developed as ensing system for the detection of OH-PCBsi nh uman serum by employing an electrode modified with aptamer-immobilized carbon nanotubes.…”

Section: Introductionmentioning

confidence: 99%

Aptamer‐Functionalized Magnetic Conjugated Organic Framework for Selective Extraction of Traces of Hydroxylated Polychlorinated Biphenyls in Human Serum

Jiang

Zheng

et al. 2018

Chemistry A European J

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A solid-phase extraction adsorbent based on an aptamer-functionalized magnetic conjugated organic framework (COF) was developed for selective extraction of traces of hydroxylated polychlorinated biphenyls. This material has advantages such as superparamagnetism of the magnetic core, high surface area and porous structure of the COF, and high specific affinity of the aptamer. In combination with HPLC-MS, the aptamer-functionalized magnetic COF was used for the capture of hydroxy-2',3',4',5,5'-pentachlorobiphenyl in human serum. The method provided a linear range of 0.01-40 ng mL with a good correlation coefficient (R =0.9973). The limit of detection was as low as 2.1 pg mL . Furthermore, the material showed good reusability and could be applied in at least ten extraction cycles with recoveries greater than 90 %.

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Smart Materials for Solid‐Phase Extraction Applications

Carrasco-Correa

Vergara-Barberán

Herrero‐Martínez

2019

Handbook of Smart Materials in Analytical Chemistry

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Simultaneous separation of chlorinated/brominated dioxins, polychlorinated biphenyls, polybrominated diphenyl ethers and their methoxylated derivatives from hydroxylated analogues on molecularly imprinted polymers prior to gas/liquid chromatography and mass spectrometry

Cited by 25 publications

References 49 publications

Levels of Selected Persistent Organic Pollutants (PCB, PBDE) and Pesticides in Honey Bee Pollen Sampled in Poland

Levels of Selected Persistent Organic Pollutants (PCB, PBDE) and Pesticides in Honey Bee Pollen Sampled in Poland

Aptamer‐Functionalized Magnetic Conjugated Organic Framework for Selective Extraction of Traces of Hydroxylated Polychlorinated Biphenyls in Human Serum

Smart Materials for Solid‐Phase Extraction Applications

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