PMID- 31754860 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20200129 LR - 20200129 IS - 1436-5073 (Electronic) IS - 0026-3672 (Linking) VI - 186 IP - 12 DP - 2019 Nov 21 TI - Magnetic partially carbonized cellulose nanocrystal-based magnetic solid phase extraction for the analysis of triazine and triazole pesticides in water. PG - 825 LID - 10.1007/s00604-019-3911-x [doi] AB - Magnetic partially carbonized cellulose nanocrystals (MPC-CNC) were obtained by sulfuric acid treatment of microcrystalline cellulose (MCC) and then loaded with magnetic Fe(3)O(4) nanoparticles. The material is shown to be a viable material for magnetic solid phase extraction of triazine and triazole pesticides from water. The pesticides (specifically: simazine, ametryn, prometryn, terbutryn, atrazine, triadimenol, epoxiconazole, myclobutanil, triadimefon and tebuconazole) were quantified by ultra HPLC in tandem with a triple quadrupole mass spectrometry (UHPLC-MS/MS). The effects of NaCl concentration, amount of adsorbent, vortex time, sample volume and pH value on extraction efficiency were optimized by Plackett-Burman design and Box-Behnken design methods. Under the optimal conditions, the method shows the following figures of merit: (a) Linear responses in the range from 0.02-10 mug L(-1); (b) detection limits between 2.2 to 6.1 ng L(-1) (for S/N = 3); (c) recoveries from spiked samples of 73.7-117.1% with relative standard deviations (RSDs) of 2.0-15.7%; and (d) an enrichment factor of 75. The method was successfully applied to the determination of the pesticides in five environmental water samples. Graphical abstract Schematic representation of the process of magnetic solid phase extracting pesticides in water using MPC-CNC. MCC-microcrystalline cellulose; PC-CNC- partially carbonized cellulose nanocrystals; MPC-CNC-magnetic partially carbonized cellulose nanocrystals. FAU - Yi, Xiaotong AU - Yi X AD - Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing, 100193, People's Republic of China. FAU - Liu, Chang AU - Liu C AD - Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing, 100193, People's Republic of China. FAU - Liu, Xueke AU - Liu X AD - Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing, 100193, People's Republic of China. FAU - Wang, Peng AU - Wang P AD - Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing, 100193, People's Republic of China. FAU - Zhou, Zhiqiang AU - Zhou Z AD - Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing, 100193, People's Republic of China. FAU - Liu, Donghui AU - Liu D AD - Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, Beijing, 100193, People's Republic of China. LA - eng GR - 21307155/National Natural Science Foundation of China/International GR - 21677175/National Natural Science Foundation of China/International GR - 2017LX001/Chinese Universities Scientific Fund/International PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20191121 PL - Austria TA - Mikrochim Acta JT - Mikrochimica acta JID - 7808782 SB - IM OTO - NOTNLM OT - Carbonification OT - Cellulose nanocrystals OT - Environmental water OT - Magnetic solid phase extraction OT - Triazine herbicides OT - Triazole fungicides EDAT- 2019/11/23 06:00 MHDA- 2019/11/23 06:01 CRDT- 2019/11/23 06:00 PHST- 2019/05/09 00:00 [received] PHST- 2019/10/11 00:00 [accepted] PHST- 2019/11/23 06:00 [entrez] PHST- 2019/11/23 06:00 [pubmed] PHST- 2019/11/23 06:01 [medline] AID - 10.1007/s00604-019-3911-x [pii] AID - 10.1007/s00604-019-3911-x [doi] PST - epublish SO - Mikrochim Acta. 2019 Nov 21;186(12):825. doi: 10.1007/s00604-019-3911-x.