| abstract |
The present invention provides a method for estimating drinking time, which includes the following steps: drawing a plurality of blood samples within 0-120 hours of starting drinking, then detecting the concentrations of alcohol, EtG and EtS in the corresponding blood samples, and obtaining EtG and EtS based on this The average concentration ratio of C EtG /C EtS ; taking the average concentration ratio C EtG / C EtS as the abscissa, and the sampling time as the ordinate to obtain a quadratic regression equation; Take the blood sample to be tested, measure its C EtG / C EtS , according to two The sub-regression equation obtained the relationship between drinking time and the mean concentration ratio C EtG /C EtS , and calculated the drinking time. The present invention aims to infer the drinking time by using the variation law of the concentration ratio between the non-oxidative metabolites of alcohol with time, so as to avoid the inevitable external interference problem in the traditional method. |