主题：【求助】methyl bromide

原文由 redanqi 发表:
一般产品的常规分析方法，没有听说用GC MS的。
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非常感谢您提供的资料，我听说过GC来测试的，但一位测试单位的工作人员告诉我：：
Methyl bromide (MeBr) is an odorless, colorless gas that has been used as an agricultural soil and structural  fumigant to control a wide variety of pests. However, because MeBr depletes the stratospheric ozone layer and is classified as a Class I ozone-depleting substance, the amount of MeBr produced and imported in the U.S. was  incrementally reduced until the phaseout took effect on January 1, 2005, except for allowable exemptions.  These exemptions include the Quarantine and Preshipment (QPS) exemption, to eliminate quarantine pests, and  the Critical Use Exemption (CUE), designed for agricultural users with no technically or economically feasible  alternatives. 
The test method is NIOSH method 2520 modified with GCMS analysis.