【摘要】 奶粉液浓度的声谱分析吴俊林，杨瑞科，张民仓，高武军，魏忠仁（陕西师范大学物理学系，西安７１００６２；第一作者，男，４０岁，副教授）利用超声可对食用油类、脂类及乳状液食物等样品进行成分分析、变质检查和掺假鉴别．这比许多传统方法快速、准确，且对样品无破坏...更多还原

【Abstract】 Ultrasonics can be used to test whether the edible oils, fats and emulsions are adulterate. The ultrasonic attenuation in different density milk is measured. The measurement shows that there is a sensitive relation between milk’s density and ultrasonic attenuation. This result can be used in adulteration test of milk.更多还原