PMID- 37147057 OWN - NLM STAT- MEDLINE DCOM- 20230508 LR - 20230508 IS - 1873-4324 (Electronic) IS - 0003-2670 (Linking) VI - 1261 DP - 2023 Jun 22 TI - Coconut shell biochar application in liquid-solid microextraction of triazine herbicides from multi-media environmental samples. PG - 341225 LID - S0003-2670(23)00446-4 [pii] LID - 10.1016/j.aca.2023.341225 [doi] AB - A rapid, fast, widely applicable liquid-solid microextraction and purification method of triazine herbicides (TRZHs) in muti-media samples using salting-out assisted liquid-liquid extraction (SALLE) combined with self-assembled monolithic spin columns-solid phase micro extraction (MSC-SPME) was developed. Environmentally friendly coconut shell biochar (CSB) was used as the adsorbents of MSC-SPME. Ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) was the separation and determination method. The adsorption kinetics and isotherms were investigated to indicate the interaction between CSB and TRZHs. Several parameters influencing the liquid-solid microextraction efficiency, such as sample pH, salting-out solution volume and pH, sample loading speed, elution speed, elution ratio and volume of eluent were systematically investigated with the aid of orthogonal design. The whole extraction process was operated within 10 min. Under the optimum extraction and determination conditions, good linearities for three TRZHs were obtained in a range of 0.10-200.00 ng mL(-1), with linear coefficients (R(2)) greater than 0.999. The limits of detection (LODs) and limits of quantification (LOQs) were in the range of 6.99-11.00 ng L(-1) and 23.33-36.68 ng L(-1), respectively. The recoveries of the three TRZHs in multi-media environmental samples were ranged from 69.00% to 124.72%, with relative standard deviations (RSDs) lower than 0.43%. This SALLE-MSC-SPME-UPLC-MS/MS method was successfully applied to the determination of TRZHs in environmental and food samples and exhibited the advantages of high efficiency and sensitivity, low cost, and environmental friendliness. Compared with the methods published before, CSB-MSC was green, rapid, easy-operated, and reduced the whole cost of the experiment; SALLE combined MSC-SPME eliminated the matrix references effectively; what's more, the SALLE-MSC-SPME-UPLC-MS/MS method could be applied to various sample without complicated sample pretreatment procedure. CI - Copyright (c) 2023 Elsevier B.V. All rights reserved. FAU - Ma, Mengge AU - Ma M AD - Department of Environmental Science, School of Tropical Medicine, International School of Public Health and One Health, Hainan Medical University, Haikou, 571199, China. FAU - Niu, Zongliang AU - Niu Z AD - Laboratory of Pathogenic Biology and Immunology, School of Basic Medicine and Life Science, Hainan Medical University, Haikou, 571199, China. FAU - Tang, Zhuhua AU - Tang Z AD - Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Haikou, China. FAU - Bai, Jinyang AU - Bai J AD - Department of Environmental Science, School of Tropical Medicine, International School of Public Health and One Health, Hainan Medical University, Haikou, 571199, China. FAU - Li, Bei AU - Li B AD - Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Haikou, China. FAU - Zhou, Yuling AU - Zhou Y AD - Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Haikou, China. Electronic address: zyl18689983973@163.com. FAU - Wen, Yingying AU - Wen Y AD - Department of Environmental Science, School of Tropical Medicine, International School of Public Health and One Health, Hainan Medical University, Haikou, 571199, China; Key Laboratory of Tropical Translational Medicine of Ministry of Education, NHC Key Laboratory of Tropical Disease Control, Haikou, 571199, China. Electronic address: wyy_418@163.com. LA - eng PT - Journal Article DEP - 20230417 PL - Netherlands TA - Anal Chim Acta JT - Analytica chimica acta JID - 0370534 RN - 0 (biochar) RN - 0 (Herbicides) RN - 0 (Triazines) SB - IM MH - Chromatography, Liquid/methods MH - *Cocos MH - Tandem Mass Spectrometry/methods MH - *Herbicides/analysis MH - Chromatography, High Pressure Liquid/methods MH - Solid Phase Extraction MH - Triazines/analysis OTO - NOTNLM OT - Coconut shell biochar OT - Monolithic spin columns-solid phase microextraction OT - Multi-media environmental samples OT - Salting-out assisted liquid-liquid extraction OT - Triazine herbicides COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2023/05/06 09:42 MHDA- 2023/05/08 06:41 CRDT- 2023/05/05 20:56 PHST- 2023/01/06 00:00 [received] PHST- 2023/04/06 00:00 [revised] PHST- 2023/04/15 00:00 [accepted] PHST- 2023/05/08 06:41 [medline] PHST- 2023/05/06 09:42 [pubmed] PHST- 2023/05/05 20:56 [entrez] AID - S0003-2670(23)00446-4 [pii] AID - 10.1016/j.aca.2023.341225 [doi] PST - ppublish SO - Anal Chim Acta. 2023 Jun 22;1261:341225. doi: 10.1016/j.aca.2023.341225. Epub 2023 Apr 17.