介绍了采用大口径（0.53mm）毛细管色谱柱，热离子特殊检测器（TSD）测定乙腈抽提的丁二烯中微量乙腈的方法。
The method of determination of trace acetonitrile in the extract of butadiene is introduced . The method applies capillary column with large inside diameter and a thermionic specific detector .
热离子检测器