4.7 Article

Determination of Pesticides in Bee Pollen: Validation of a Multiresidue High-Performance Liquid Chromatography-Mass Spectrometry/Mass Spectrometry Method and Testing Pollen Samples of Selected Botanical Origin

期刊

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 70, 期 5, 页码 1507-1515

出版社

AMER CHEMICAL SOC
DOI: 10.1021/acs.jafc.1c06864

关键词

honeybee decline; monofloral; rapeseed pollen; multiresidue method validation; liquid chromatography tandem mass spectrometry

资金

  1. National Research, Development and Innovation Office of Hungary (OTKA) [135700]
  2. Hungarian Academy of Sciences
  3. European Union
  4. European Social Fund [EFOP-3.6.3-VEKOP-16-2017-00005]
  5. New National Excellence Program of the Ministry of Innovation and Technology [UNKP-21-3-I-MATE-48]

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A multiresidue method for pesticide determination in bee pollen was developed and validated, and it was found that some samples contained banned pesticides, although they did not pose an acute risk on honeybees.
Pollen is a source of nutrients for honeybees (Apis mellifera L.) and suitable for human consumption as well. In our research, a multiresidue method for pesticide determination was developed and validated for the bee pollen matrix. 247 components met the validation criteria for limit of detection, limit of quantification, linearity, and interday repeatability. Average recoveries varied between 70 and 120% except for 14 analytes, which were corrected during on-going validation. The matrix effect was strong for certain analytes, which required the use of matrix-matched calibration. The pesticide residue profiles of 21 pollen samples of different botanical origins were identified by the developed method. The most common active substances were chlorpyrifos, thiacloprid, and acetamiprid. Some products contained pesticides that are already banned. According to our estimates, the tested samples do not pose an acute risk on honeybees, although the combination of pesticides may cause synergistic toxicity.

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