裂解气相色谱-质谱联用法在建立润滑油指纹图谱中的应用

润滑油的指纹图谱是润滑油质量控制的有效手段，是其物质组成整体性和模糊性的综合体现。采用裂解气相色谱-质谱联用法建立润滑油的指纹图谱，对样品的前处理方法、裂解方式、气相色谱-质谱条件等影响指纹图谱稳定性的因素进行了研究，利用得到的典型润滑油指纹图谱建立相应的谱库，选择几种润滑油指纹图谱作为校验集在谱库中进行检索，检索结果的准确率达到99%以上，为润滑油质量的有效控制提供了便捷的方法。

ESTABLISHMENT OF LUBRICATING OIL FINGERPRINTS BY PYROLYSIS GAS CHROMATOGRAPHY-MASS SPECTROMETRY

Fingerprint of lubricating oil is the integrated embodiment of its integrity and fuzzy matter and can be used as an effective means of lubricating oil quality control. The application of pyrolysis gas chromatography-mass spectrometry in building fingerprints of lubricating oil was studied. The factors influencing the stability of fingerprints, such as preprocessing method, pyrolytic form, gas chromatography-mass spectrometry conditions, were examined. The fingerprint library of lubrication oils was then built with typical results of the fingerprints of lubricating oils tested. Some lubricating oils were used as samples to check the accuracy of the established fingerprint and the result exceeded 99%.