Journal of Tianjin Agricultural University ›› 2026, Vol. 33 ›› Issue (3): 36-41.doi: 10.19640/j.cnki.jtau.2026.03.007

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Determination of DA-6 residues in eggs and chicken tissues based on improved QuEChERS-UPLC-MS/MS

Jin Xiang1, Li Cun1, Li Na2, Zhang Yuting2, Guo Yongze2,Corresponding Author   

  1. 1. Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, College of Animal Science and Veterinary Medicine, Tianjin Agricultural University, Tianjin 300392, China;
    2. Institute of Agro-product Safety and Nutrition, Tianjin Academy of Agricultural Sciences, Tianjin 300381, China
  • Received:2024-04-21 Online:2026-06-30 Published:2026-06-30

Abstract: Based on the optimized QuEChERS pretreatment technique, an ultra performance liquid chromatography tandem mass spectrometry(UPLC-MS/MS)method was developed for the determination of DA-6 residue in eggs and chicken tissues. With DA-6 as the research object, the spiking test was carried out in six matrices, namely, egg, chicken meat, chicken gizzard, chicken blood, chicken liver and chicken heart. The results showed that the linearity of DA-6 in the six matrices was good in the concentration range of 0.000 3-0.030 0 mg/L with the correlation coefficients greater than 0.999. The recoveries of DA-6 in eggs, chicken meat and gizzards at the spiked concentrations of 0.005 mg/kg, 0.010 mg/kg, 0.200 mg/kg ranged from 74.1% to 108.2% with the relative standard deviations(RSD)less than 5.0%. The recoveries of DA-6 in chicken blood, chicken heart and chicken liver at the spiked concentrations of 0.008 mg/kg, 0.050 mg/kg and 0.200 mg/kg were in the range of 70.2%-94.2% with the relative standard deviations(RSD)less than 3.3%. In conclusion, this method for the determination of DA-6 residues in eggs and chicken tissues is simple to operate and meets the requirements of the guidelines for pesticide residue testing in terms of accuracy and precision.

Key words: DA-6, QuEChERS, ultra performance liquid chromatography tandem mass spectrometry(UPLC-MS/MS), chicken, residue

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