Determination of 12 quinolones in honey by vortex-assisted dispersive liquid liquid microextraction performed in syringe based on deep eutectic solvent combine with ultra performance liquid chromatography-mass spectrometry

2021 ◽  
Author(s):  
Yixia Wang ◽  
Sijun Zhao ◽  
Linyan Yang ◽  
Chang Liu ◽  
Hongyu Wang ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Deep Eutectic Solvent ◽  
Ultra Performance Liquid Chromatography ◽  
Liquid Chromatography Mass Spectrometry ◽  
Chromatography Mass Spectrometry ◽  
Dispersive Liquid Liquid Microextraction ◽  
Liquid Microextraction

Determination of α-tocopherol in cereal grains by use of saponification coupled with ionic-liquid-based dispersive liquid–liquid microextraction before high-performance liquid chromatography-mass spectrometry

2016 ◽  
Vol 8 (26) ◽  
pp. 5283-5287 ◽  
Author(s):  
Qilong Xie ◽  
Dekui Sun ◽  
Jiangping Cao ◽  
Litao Jia ◽  
Bo Hou ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Cereal Grains ◽  
Liquid Chromatography Mass Spectrometry ◽  
Chromatography Mass Spectrometry ◽  
Dispersive Liquid Liquid Microextraction ◽  
Liquid Microextraction

A selective and low organic-solvent-consuming method of sample preparation combined with high-performance liquid chromatography-mass spectrometry detection is introduced for the analysis of α-tocopherol in cereal grains.

Determination of seven anticoagulant rodenticides in human serum by ultra-performance liquid chromatography-mass spectrometry

2015 ◽  
Vol 7 (5) ◽  
pp. 1884-1889 ◽  
Author(s):  
Xinfeng Dong ◽  
Shuxuan Liang ◽  
Hanwen Sun
Keyword(s):  
Mass Spectrometry ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Human Serum ◽  
High Performance ◽  
Ultra Performance Liquid Chromatography ◽  
Liquid Chromatography Mass Spectrometry ◽  
Anticoagulant Rodenticide ◽  
Chromatography Mass Spectrometry

Anticoagulant rodenticide residues (warfarin, coumatetralyl, diphacinone, chlorophacinone, brodifacoum, bromadiolone, and flocoumafen) in human serum were determined by sensitive high-performance liquid chromatography-mass spectrometry.

Determination of Residues of Cyantraniliprole and Its Metabolite J9Z38 in Watermelon and Soil Using Ultra-Performance Liquid Chromatography/Mass Spectrometry

2013 ◽  
Vol 96 (6) ◽  
pp. 1448-1452 ◽  
Author(s):  
Xiuqing Hu ◽  
Changpeng Zhang ◽  
Yahong Zhu ◽  
Min Wu ◽  
Xiaoming Cai ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Silica Gel ◽  
Ultra Performance Liquid Chromatography ◽  
Soil Samples ◽  
Liquid Chromatography Mass Spectrometry ◽  
Chromatography Mass Spectrometry

Abstract A method was developed for the determination of cyantraniliprole (HGW86) and its metabolite J9Z38 in watermelon and soil by ultra-performance LC (UPLC)/MS/MS. Target compounds were extracted by acetonitrile–water, cleaned up on a silica gel column, and determined by UPLC/MS/MS. Average recoveries of cyantraniliprole and J9Z38 in watermelon and soil at three levels (0.01, 0.1, and 0.5 mg/kg) ranged from 85.71 to 105.74%, with RSDs of 0.90–6.34%. The LOQs for cyantraniliprole and J9Z38 were determined to be 0.00021, 0.00015, 0.0010, and 0.00090 mg/kg in watermelon and soil samples, respectively. This method was used to determine the cyantraniliprole and J9Z38 residues in watermelon and soil samples for studies on their dissipation. The trial results showed that the half-lives of cyantraniliprole obtained after treatments were 1.1 and 4.1 days in watermelon and soil in Zhejiang, and 2.7 and 2.6 days in watermelon and soil in Hunan, respectively. The average levels of cyantraniliprole and J9Z38 residues in watermelon and soil were all <0.01 mg/kg within the 14-day interval after treatment.

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