Abstract
Imidaclothiz residue in tea was determined by high performance liquid chromatography (HPLC), using different extractants including hexane, acetonitrile, acetone, hexane-acetonitrile（vv=11）, acetonitrile-acetone（vv=11） and hexane-ethyl acetate（vv=11）. The results indicate that all the extractants displayed excellent extraction capability of imidaclothiz residue in tea and insignificant interference on the accuracy. Under the optimized extraction volume (20 mL), the recovery rates were 82.3%～100.7%, 85.8%～101.1%, 85.9%～95.2%, 82.3%～101.3%, 82.4%～100.5%, 88.6%～102.3%, with the relative standard deviations are less than 10%, respectively. Moreover, mixed solvent showed improved extraction capability and the highest extraction capability and promoted stability were approached by using hexane-ethyl acetate （11）as coextractants.
Publication Date
1-28-2018
First Page
54
Last Page
56,77
DOI
10.13652/j.issn.1003-5788.2018.01.010
Recommended Citation
Qing, LI; Mingyi, GUO; Jun, LIANG; Xiao, YUAN; Lijun, LI; and Xiaoyan, CAO
(2018)
"Comparative study of the effects of different extractants on the detection of imidaclothiz residue in tea,"
Food and Machinery: Vol. 34:
Iss.
1, Article 10.
DOI: 10.13652/j.issn.1003-5788.2018.01.010
Available at:
https://www.ifoodmm.cn/journal/vol34/iss1/10
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