Dispersion‐assisted quick and simultaneous extraction of 30 pesticides from alcoholic and non‐alcoholic drinks with the aid of experimental design

Abstract

The presence of pesticides in food items and beverages is a big threat to humankind, and their quantitative estimation with high precision and accuracy is always a challenge for analytical chemists. Hence, a simple and rapid method is proposed for the simultaneous determination of 30 pesticides in beverages (alcoholic and non-alcoholic drinks). The proposed method hyphenated with triple quadrupole liquid chromatography mass spectrometry has only 2 min chromatographic runtime for the analysis of all the pesticides. All the factors affecting the extraction yield have been optimized using an experimental design; and under optimized conditions, the developed method has been validated. The detection limits for all the pesticides were in the range of 0.001-0.348 μg/L with good linearity in the concentration range of 0.01-80.0 μg/L. The coefficient of determination was in the range of (R ) ≥ 0.977 to 0.999 for all the pesticides. The method was also checked for the precision of the relative standard deviation, which was below 4.75 (intra-day) and 8.96% (inter-day). The recovery of the method was 92-138%.

Current trends and recent advances on food authenticity technologies and chemometric approaches

“…Dispersive LLME (DLLME) was developed as a new type of LLME to analyse organic compounds. It is a triphasic extraction system in which a mixture of the extraction solvent and disperser solvent (in optimized ratios) is injected into the sample using a syringe or a micropipette, thus producing a cloudy solution(Jha, Singh, Kumari, & Patel, 2018). This dispersion process significantly improves the extraction kinetics by increasing the contact surface between the extractant and the sample.…”