Simultaneous determination of Spirotetramat, Flonicamid, Procymidone and Cyprodinil residues in 10 dehydrated vegetables by modified QuEChERS technique and GC-MS/MS analysis

In the future, the demand for dehydrated vegetables will steadily increase to support agricultural resilience and drive food quality higher. At the same time, the safety and health of dehydrated vegetables will gain heightened awareness among the general population, reflecting critical public health implications.A simultaneous analytical method was developed to detect spirotetramat, procymidone, flonicamid, and cyprodinil in dehydrated vegetables. This innovative approach employed the QuEChERS sample preparation technique, ensuring precise weighing into rotating Centrifuge tubes for high precision. The method utilized Gas Chromatography Tandem Mass Spectrometry (GC-MS/MS), a highly sensitive and accurate analytical technique, to provide detailed spectral data for the detection of these compounds.The analysis yielded linear ranges of 0.005–0.250 μg/mL, indicating significant relationships between concentration and detection results (correlation coefficients > 0.9994). The recovery rates across varying levels of purity (high, medium, low) were satisfactory, with spiked sample recovery rates ranging from 78.1% to 113.2%. Additionally, the relative standard deviation for ten consecutive measurements averaged below 5%, demonstrating consistent reproducibility and reliability in this detection system.The use of GC-MS/MS provided high efficiency and specificity, making it suitable for detecting trace compounds in dehydrated vegetables. These findings contribute to advancing analytical techniques for food and agricultural residue analysis and offer practical applications in improving food safety and quality control.