Multiresidue Analytical Method for Pesticides in Soybean Extract

Area of Science:

• Analytical Chemistry
• Food Science

Background:

• Pesticide residues in food pose health risks.
• Accurate detection methods are crucial for food safety.

Purpose of the Study:

• To develop and validate a rapid and effective method for determining 26 pesticides in soy-based drinks (SE).

Main Methods:

• Dispersive Liquid-Liquid Microextraction (DLLME) technique.
• Gas Chromatography-Mass Spectrometry (GC-MS) for determination.
• Extraction involved 5.0 mL SE, 1.0 g NaCl, 3.0 mL acetonitrile, and 70 μL pesticide mix.

Main Results:

• Validation showed suitable results with linear calibration curves (0.500-5.0 μg/mL).
• Method achieved limits of detection (0.17 μg/mL) and quantification (0.50 μg/mL).
• Recovery ranged from 47% to 115% with relative standard deviation (RSD) <20%.

Conclusions:

• The validated DLLME-GC-MS method is fast, simple, and effective for routine pesticide analysis in soy-based drinks.
• Satisfactory validation results support its application in quality control.