PMID- 37755748 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231003 IS - 2305-6304 (Electronic) IS - 2305-6304 (Linking) VI - 11 IP - 9 DP - 2023 Aug 28 TI - Developing an Improved Strategy for the Analysis of Polychlorinated Dibenzo-p-Dioxins/Furans and Dioxin-like Polychlorinated Biphenyls in Contaminated Soils Using a Combination of a One-Step Cleanup Method and Gas Chromatography with Triple Quadrupole Mass Spectrometry. LID - 10.3390/toxics11090738 [doi] LID - 738 AB - Soils contaminated with polychlorodibenzo-p-dioxins (PCDDs), polychlorodibenzofurans (PCDFs), and dioxin-like (dl) polychlorinated biphenyls (PCBs), known as persistent organic pollutants (POPs), have garnered global attention because of their toxicity and persistence in the environment. The standard method for target analytes has been used; however, it is an obstacle in large-scale sample analysis due to the comprehensive sample preparation and high-cost instrumental analysis. Thus, analytical development of inexpensive methods with lower barriers to determine PCDDs/Fs and dl-PCBs in soil is needed. In this study, a one-step cleanup method was developed and validated by combining a multilayer silica gel column and Florisil micro-column followed by gas chromatography with triple quadrupole mass spectrometry (GC-QqQ-MS/MS). To optimize the separation and quantification of 17 PCDDs/Fs and 12 dl-PCBs in soils, the sample cleanup and instrumental conditions were investigated. For quantification method validation, spiking experiments were conducted to determine the linearity of the calibration, recovery, and method detection limit of PCDDs/Fs and dl-PCBs using isotopic dilution GC-QqQ-MS/MS. The applicability of the simultaneous determination of PCDDs/Fs and dl-PCBs was confirmed by the recovery of native target congeners and labeled surrogate congeners spiked into the quality-control and actual soil samples. The results were in good agreement with the requirements imposed by standard methods. The findings in this work demonstrated the high accessibility of the sample cleanup and analysis methods for the efficient determination of PCDDs/Fs and dl-PCBs in contaminated soils. FAU - Chu, Haena AU - Chu H AD - Western Seoul Center, Korea Basic Science Institute, Seoul 03759, Republic of Korea. FAU - Jo, Jungmin AU - Jo J AD - Department of Environmental Science and Engineering, Ewha Womans University, Seoul 03760, Republic of Korea. FAU - Son, Younggyu AU - Son Y AD - Department of Environmental Engineering, Kumoh National Institute of Technology, Gumi 39177, Republic of Korea. AD - Department of Energy Engineering Convergence, Kumoh National Institute of Technology, Gumi 39177, Republic of Korea. FAU - Lee, Ji Yi AU - Lee JY AUID- ORCID: 0000-0001-9386-2133 AD - Department of Environmental Science and Engineering, Ewha Womans University, Seoul 03760, Republic of Korea. FAU - Ahn, Yun Gyong AU - Ahn YG AUID- ORCID: 0000-0003-4256-3824 AD - Western Seoul Center, Korea Basic Science Institute, Seoul 03759, Republic of Korea. LA - eng GR - 2021002470001/Ministry of Environment/ GR - C380200/Korea Basic Science Institute/ PT - Journal Article DEP - 20230828 PL - Switzerland TA - Toxics JT - Toxics JID - 101639637 PMC - PMC10536111 OTO - NOTNLM OT - dioxin-like polychlorinated biphenyls (dl-PCBs) OT - gas chromatography with triple quadrupole mass spectrometry (GC-QqQ-MS/MS) OT - one-step cleanup OT - persistent organic pollutants (POPs) OT - polychlorodibenzo-p-dioxins (PCDDs) OT - polychlorodibenzofurans (PCDFs) OT - soils COIS- The authors declare no conflict of interest. EDAT- 2023/09/27 12:42 MHDA- 2023/09/27 12:43 PMCR- 2023/08/28 CRDT- 2023/09/27 11:33 PHST- 2023/07/19 00:00 [received] PHST- 2023/08/16 00:00 [revised] PHST- 2023/08/24 00:00 [accepted] PHST- 2023/09/27 12:43 [medline] PHST- 2023/09/27 12:42 [pubmed] PHST- 2023/09/27 11:33 [entrez] PHST- 2023/08/28 00:00 [pmc-release] AID - toxics11090738 [pii] AID - toxics-11-00738 [pii] AID - 10.3390/toxics11090738 [doi] PST - epublish SO - Toxics. 2023 Aug 28;11(9):738. doi: 10.3390/toxics11090738.