Method for detecting menthol content of peppermint oil drop pill by gas chromatograph

Method for detecting menthol content of peppermint oil drop pill by gas chromatograph

  • CN 104,914,194 A
  • Filed: 06/30/2015
  • Published: 09/16/2015
  • Est. Priority Date: 06/30/2015
  • Status: Active Grant
First Claim
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1. detect a method for Determination of menthol in Dementholized mint oil dripping pill with gas chromatograph, it is characterized in that:

  • comprise the following steps;

    (1) menthol reference substance solution is prepared;

    get menthol reference substance, weighed, add ethanol and make;

    (2) prepare need testing solution;

    get test sample, weighedly put in measuring bottle, add water and ethanol, filter and get final product;

    (3) draw A, B, C, D and E menthol reference substance solution of different volumes, inject gas chromatograph, measure peak area, take sample size as horizontal ordinate, take peak area value as ordinate, carry out linear regression calculating, drawing standard curve, obtain typical curve regression equation, Y=nX+4E-13, X are sample size, and Y is peak area, n is slope, and 4E-13 is 4*10 -13science counting;

    (4) draw need testing solution, inject gas chromatograph, measure, record chromatogram, calculates the content of menthol by external standard method;

    Or the content of menthol is gone out according to the typical curve regression equation calculation in step (3).

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