水环境中苯丙胺类物质的快速前处理方法

在国内外研究的基础上，应用固相萃取技术，建立并优化了适用于野外条件的3种常见精神活性物质（甲基苯丙胺、苯丙胺和麻黄碱）的快速前处理方法.比较了污水快速前处理条件（样品pH值和上样流速）对目标物回收率的影响.结果表明，在本文测试条件下，理想的快速前处理参数为使用Oasis HLB柱，在碱性条件、流速为20mL/min的情况下加载样品.与传统方法相比，快速前处理方法所得的目标物浓度稍有降低，但仍很好地反映了生活污水中的目标物浓度水平和变化特征.北京、广东两地的野外验证结果显示，该方法对南北两地生活污水和地表水样品的处理效果都比较稳定.

Accelerated pre-treatment method for amphetamine-type substances in water environment

Based on previous studies, we developed a method for rapid pre-treatment of water samples for three typical psychoactive substances (methamphetamine, amphetamine and ephedrine) under field conditions. The effects of the method parameters (pH and loading flow rate) on the recovery rate of the target substances were compared. The optimal parameters for the accelerated pre-treatment were using Oasis HLB, and the samples were loaded at a flow rate of 20mL/min under alkaline condition. Compared with the traditional method, the concentrations of the target substances measured using the accelerated pre-treatment method were slightly lower, but it still reflected the concentration level and variation characteristics of the target substances in domestic sewage. The field verifications in Beijing and Guangdong showed that the performance of this method was stable for both surface water and wastewater samples.