PMID- 31366025 OWN - NLM STAT- MEDLINE DCOM- 20200102 LR - 20200225 IS - 1420-3049 (Electronic) IS - 1420-3049 (Linking) VI - 24 IP - 15 DP - 2019 Jul 30 TI - Matrix-Induced Sugaring-Out: A Simple and Rapid Sample Preparation Method for the Determination of Neonicotinoid Pesticides in Honey. LID - 10.3390/molecules24152761 [doi] LID - 2761 AB - In the present work, we developed a simple and rapid sample preparation method for the determination of neonicotinoid pesticides in honey based on the matrix-induced sugaring-out. Since there is a high concentration of sugars in the honey matrix, the honey samples were mixed directly with acetonitrile (ACN)-water mixture to trigger the phase separation. Analytes were extracted into the upper ACN phase without additional phase separation agents and injected into the HPLC system for the analysis. Parameters of this matrix-induced sugaring-out method were systematically investigated. The optimal protocol involves 2 g honey mixed with 4 mL ACN-water mixture (v/v, 60:40). In addition, this simple sample preparation method was compared with two other ACN-water-based homogenous liquid-liquid extraction methods, including salting-out assisted liquid-liquid extraction and subzero-temperature assisted liquid-liquid extraction. The present method was fully validated, the obtained limits of detection (LODs) and limits of quantification (LOQs) were from 21 to 27 and 70 to 90 mug/kg, respectively. Average recoveries at three spiked levels were in the range of 91.49% to 97.73%. Precision expressed as relative standard deviations (RSDs) in the inter-day and intra-day analysis were all lower than 5%. Finally, the developed method was applied for the analysis of eight honey samples, results showed that none of the target neonicotinoid residues were detected. FAU - Chen, Wenbin AU - Chen W AUID- ORCID: 0000-0003-3535-9649 AD - College of Bee Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China. wbchen@fafu.edu.cn. FAU - Wu, Siyuan AU - Wu S AD - College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China. FAU - Zhang, Jianing AU - Zhang J AD - College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China. FAU - Yu, Fengjie AU - Yu F AD - College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China. FAU - Hou, Jianbo AU - Hou J AD - Zhejiang Academy of Science and Technology for Inspection and Quarantine, Hangzhou 310016, China. FAU - Miao, Xiaoqing AU - Miao X AD - College of Bee Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China. AD - College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China. FAU - Tu, Xijuan AU - Tu X AD - College of Bee Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China. xjtu@fafu.edu.cn. LA - eng GR - 2019J01409/Natural Science Foundation of Fujian Province/ GR - 31201861/National Natural Science Foundation of China/ GR - 51202030/National Natural Science Foundation of China/ GR - 2016IK280/General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China/ PT - Journal Article PT - Validation Study DEP - 20190730 PL - Switzerland TA - Molecules JT - Molecules (Basel, Switzerland) JID - 100964009 RN - 0 (Acetonitriles) RN - 0 (Insecticides) RN - 0 (Neonicotinoids) RN - 0 (Solvents) RN - 059QF0KO0R (Water) RN - Z072SB282N (acetonitrile) SB - IM MH - Acetonitriles/chemistry MH - Chromatography, High Pressure Liquid/*methods/standards MH - Food Analysis MH - Food Contamination MH - Honey/*analysis MH - Humans MH - Insecticides/*isolation & purification MH - Limit of Detection MH - Liquid-Liquid Extraction/*methods MH - Neonicotinoids/*isolation & purification MH - Observer Variation MH - Reproducibility of Results MH - Solvents/chemistry MH - Water/chemistry PMC - PMC6695813 OTO - NOTNLM OT - HPLC OT - honey OT - liquid-liquid extraction OT - neonicotinoid OT - sample preparation OT - sugaring-out COIS- The authors declare no conflict of interest. EDAT- 2019/08/02 06:00 MHDA- 2020/01/03 06:00 PMCR- 2019/07/30 CRDT- 2019/08/02 06:00 PHST- 2019/07/06 00:00 [received] PHST- 2019/07/28 00:00 [revised] PHST- 2019/07/29 00:00 [accepted] PHST- 2019/08/02 06:00 [entrez] PHST- 2019/08/02 06:00 [pubmed] PHST- 2020/01/03 06:00 [medline] PHST- 2019/07/30 00:00 [pmc-release] AID - molecules24152761 [pii] AID - molecules-24-02761 [pii] AID - 10.3390/molecules24152761 [doi] PST - epublish SO - Molecules. 2019 Jul 30;24(15):2761. doi: 10.3390/molecules24152761.