Preparation of matrix reference materials of bifenthrin and cyhalothrin pesticide residues in green tea
CSTR:
Author:
Affiliation:

(1. Quality Standardizing and Testing Technology Institute, Yunnan Academy of Agricultural Sciences, Kunming, Yunnan 650205, China; 2. Supervision & Testing Center for Farm Products Quality Ministry of Agriculture and Rural Affairs (Kunming Section), Kunming, Yunnan 650205, China; 3. Agricultural Products Quality and Safety Inspection of Yuanjiang, Yuanjiang, Yunnan 653300, China)

Clc Number:

Fund Project:

  • Article
  • |
  • Figures
  • |
  • Metrics
  • |
  • Reference
  • |
  • Related
  • |
  • Cited by
  • |
  • Materials
  • |
  • Comments
    Abstract:

    Objective: The preparation method of matrix reference materials of bifenthrin and cyhalothrin pesticide residues in green tea was established. Methods: Green tea samples were sprayed with biphenylthrin and cyhalothrin. The samples were crushed, screened, homogenized and bottled. After the homogeneity and stability tests, the quantity value was determined by three laboratories, and the uncertainty was evaluated. Results: The amount values of bifenthrin and cyhalothrin in green tea were (0.185±0.019 7) and (0.207±0.046 6) mg/kg with k=2, and the confidence interval was 95%. Conclusion: The developed matrix reference materials of bifenthrin and cyhalothrin in green tea are homogeneous and stable enough, and the calibration results are reliable.

    Reference
    Related
    Cited by
Get Citation

方海仙,陈兴连,李昕昀,等.绿茶中联苯菊酯和氯氟氰菊酯残留检测质量控制基体标准物质的研制[J].食品与机械英文版,2024,40(4):40-46.

Copy
Share
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:July 25,2023
  • Revised:
  • Adopted:
  • Online: May 21,2024
  • Published:
Article QR Code