使用一个线性离子阱质谱仪进行多个非法药物，美沙酮以及其在口服液的代谢产物的分析

　　Traditionally, the analysis of urine samples has been the major approach for the detecting of drugs of abuse.1 However, a common risk for this type of analysis is adulteration or manipulation of the sample at the point of collection. As an alternative, the analysis of oral fluid provides an easy method of sample collection and has the advantage of providing a relatively clean matrix. Because of the reduced sample volume, this technique requires a high sensitivity and robust analytical method to make an attractive alternative to conventional methods.