• 专利标题:   Method for using graphene purifying pyrethroid-like farm chemical residue vegetables e.g. cucumber, to analyze pesticide residue of vegetables, involves detecting supernatant adding anhydrous sodium sulfate to remove residual water.
  • 专利号:   CN102778521-A, CN102778521-B
  • 发明人:   LIU X, MA Y, MENG L, WU X, ZHANG H
  • 专利权人:   UNIV CHINA AGRIC
  • 国际专利分类:   G01N030/06
  • 专利详细信息:   CN102778521-A 14 Nov 2012 G01N-030/06 201316 Pages: 7 Chinese
  • 申请详细信息:   CN102778521-A CN10105547 11 Apr 2012
  • 优先权号:   CN10105547

▎ 摘  要

NOVELTY - The method involves weighing proper amount of pre-crushing homogeneous pyrethroid-like farm chemical, and adding extracting solvent to the chemical, where the solvent is acetone, dinitrile, bi-acid bi-ester, methanol, normal hexane, petroleum ether or dichloromethane. The sodium chloride is added to the chemical. The solution of the chemical and the sodium chloride are purified. The graphite is added to the solution. The supernatant adding anhydrous sodium sulfate or anhydrous magnesium sulfate is detected to remove residual water after carrying out gas chromatography detection. USE - Method for using graphene purifying pyrethroid-like farm chemical residue vegetables e.g. cucumber, pepper and spinach (all claimed), to analyze pesticide residue of the vegetables. ADVANTAGE - The method enables realizing strong adsorption capacity and high recovery rate. The method enables performing the analysis of the pesticide residue of the vegetables in a simple, accurate, rapid and inexpensive manner. DESCRIPTION OF DRAWING(S) - The drawing shows a graph representing analysis values of a method for using graphene purifying pyrethroid-like farm chemical residue vegetables. '(Drawing includes non-English language text)'