Rapid screening of organophosphorus pesticides in honey and bees by liquid chromatography—Mass spectrometry

2002 ◽  
Vol 56 (9-10) ◽  
pp. 577-583 ◽  
Author(s):  
M. Fernández ◽  
Y. Picó ◽  
J. Mañes
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Organophosphorus Pesticides ◽  
Rapid Screening ◽  
Liquid Chromatography Mass Spectrometry ◽  
Chromatography Mass Spectrometry

Rapid screening and confirmation of 205 pesticide residues in rice by QuEChERS and liquid chromatography-mass spectrometry

2015 ◽  
Vol 33 (10) ◽  
pp. 1080
Author(s):  
Xi CHEN ◽  
Lei CHENG ◽  
Shichao QU ◽  
Daliang HUANG ◽  
Jiacheng LIU ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Pesticide Residues ◽  
Rapid Screening ◽  
Liquid Chromatography Mass Spectrometry ◽  
Chromatography Mass Spectrometry

Rapid screening of destruxins by liquid chromatography/mass spectrometry

1998 ◽  
Vol 33 (3) ◽  
pp. 274-280 ◽  
Author(s):  
Alexandr Jegorov ◽  
Vladimír Havlíček ◽  
Petr Sedmera
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Rapid Screening ◽  
Liquid Chromatography Mass Spectrometry ◽  
Chromatography Mass Spectrometry

Rapid screening of pancreatic lipase inhibitors from Monascus-fermented rice by ultrafiltration liquid chromatography-mass spectrometry

2017 ◽  
Vol 9 (23) ◽  
pp. 3422-3429 ◽  
Author(s):  
Yu-Xiang Fang ◽  
Hui-Peng Song ◽  
Jin-Xiu Liang ◽  
Ping Li ◽  
Hua Yang
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Molecular Docking ◽  
Bioactive Compounds ◽  
Pancreatic Lipase ◽  
Functional Foods ◽  
Rapid Screening ◽  
Liquid Chromatography Mass Spectrometry ◽  
Chromatography Mass Spectrometry ◽  
Pancreatic Lipase Inhibitors

Ultrafiltration LC-MS, affinity-guided isolation and molecular docking were integrated into one strategy to discover bioactive compounds from functional foods.

scholarly journals Rapid simultaneous determination of organophosphorus pesticides in human serum and urine by liquid chromatography-mass spectrometry

2010 ◽  
Vol 67 (9) ◽  
pp. 717-722
Author(s):  
Milica Zlatkovic ◽  
Miodrag Jovanovic ◽  
Dragana Djordjevic ◽  
Slavica Vucinic
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Solid Phase ◽  
Organophosphorus Pesticides ◽  
Extraction Procedure ◽  
Liquid Chromatography Mass Spectrometry ◽  
Aim Analysis ◽  
Constant Flow Rate ◽  
Chromatography Mass Spectrometry

Background/Aim. Analysis of organophosphosphorus compounds and their metabolites in a biological material includes the use of numerous methods, covering both preparation of samples for analysis and their identification that is considered to be very complex. Low concentrations monitoring requires implementation of highly sensitive analytical techniques. The aim of this study was to develop and validate an original and sensitive method for the detection and quantitation of organophosphorus pesticides (dimethoate, diazinon, malathion and malaoxon) in human biological matrices (serum, urine). Methods. This method was based on a solid-phase extraction procedure, a chromatographic separation using an ACQUITY UPLC ? HSST3 column and mass spectrometric detection in the positve ion mode. Mobile phase: was consited of Solvent A (5 mM ammonium formate pH 3.0) and Solvent B (0.1% acetic formate in methanol), in a linear gradient (constant flow-rate 0.3 mL/min). Results. The standard curve was linear in the range of 0.05-5.00 mg/L for malathion and malaoxon, 0.10-5.00 mg/L for dimethoate and 0.05-2.50 mg/L for diazinon. The correlation coefficient was r ? 0.99. Extraction recoveries were satisfactory and ranged between 90-99%. The limits of detection (LOD) was between 0.007- 0.07 mg/L and the limits of quantitation (LOQ) ranged between 0.022-0.085 mg/L. Intra- and interassay precision and accuracy were satisfactory for all of the pesticides analyzed. Conclusion. The method of liquid chromatography - mass spectrometry is simple, accurate, and useful for the determination of organophosphorus pesticides in both clinical and forensic toxicology.

Sign in / Sign up

Export Citation Format

Share Document