College of Material & Chemical Engineering Chengdu University of Technology, Chengdu, China;
College of Material & Chemical Engineering Chengdu University of Technology, Chengdu, China Mianyang Product Quality Supervision and Inspection Bureau, Mianyang, China;
Mianyang Product Quality Supervision and Inspection Bureau, Mianyang, China;
Infrared; Spectrometer; (IR); White; Spirit; Authenticity; Identification;