期刊
JOURNAL OF SEPARATION SCIENCE
卷 43, 期 8, 页码 1466-1473出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/jssc.201900801
关键词
amitraz; 2,4-dimethylaniline; honey; orbital trap
A method for determining amitraz and 2,4-dimethylaniline in honey was established by using ultra-high-performance liquid chromatoghaphy and Q Exactive after applying quick, easy, cheap, effective, rugged, and safe extracting process. A suitable extraction method was designed to extract the amitraz and 2,4-dimethylaniline after a suitable amount of honey samples was dissolved. A Thermo Syncronis C-18 column (100 x 2.1 mm, 1.7 mu m) was used for chromatographic separation of the samples. Then the two compounds were quantitatively analyzed via a program of Q Exactive. The linearity of amitraz and 2,4-dimethylaniline was good in the concentration range of 0.5-100 mu g/L, and the correlation coefficient R-2 was >0.99. The average recovery and relative standard deviation of each component were 81.3-90.0% and 5.1-7.2%. The 24- and 48-h test results showed that the sample needed to be tested within 24 h. The limit of detection was 0.1 mu g/kg for amitraz and 2,4-dimethylaniline, whereas for both the limit of quantitation was 0.3 mu g/kg.
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