公开(公告)号：US20040137546A1

公开(公告)日：2004-07-15

申请号：US10744272

申请日：2003-12-22

Applicant: Stepan Company

Inventor： Stacey J. Greenhill

IPC: C12Q001/66

CPC classification number: G01N21/78 ,  G01N31/22 ,  G01N33/2835

Abstract: A method for determining the glycerin content of a biodiesel sample is provided which utilizes the conversion of the glycerin content of the biodiesel sample into a colored compound, preferably quinoneimine dye. The concentration of the colored compound, preferably quinoneimine dye, in the biodiesel sample may then be measured and converted to a concentration of glycerin in the biodiesel sample.

Abstract translation: 提供了用于测定生物柴油样品的甘油含量的方法，其利用将生物柴油样品的甘油含量转化为有色化合物，优选醌亚胺染料。 然后可以测量生物柴油样品中有色化合物，优选醌亚胺染料的浓度，并将其转化为生物柴油样品中甘油的浓度。