今天打气相色谱，突然出现三头峰，分析的样品是DMSO-萘-苯并噻吩，
柱温采用程序升温:90（3min）5℃/min至140℃（3min）3℃/min至180℃，检测器290℃，注样器280℃
氮气压力0.1兆帕，氢气0.1兆帕、空气0.03兆帕，今天突然出现三头峰，这是什么原因呢[img=,690,517]https://ng1.17img.cn/bbsfiles/images/2018/12/201812261234474491_9382_3414392_3.jpg!w690x517.jpg[/img][img=,690,517]https://ng1.17img.cn/bbsfiles/images/2018/12/201812261234564481_7140_3414392_3.jpg!w690x517.jpg[/img][img=,690,517]https://ng1.17img.cn/bbsfiles/images/2018/12/201812261235032421_5178_3414392_3.jpg!w690x517.jpg[/img]