公开(公告)号：US20090278039A1

公开(公告)日：2009-11-12

申请号：US12437907

申请日：2009-05-08

申请人： Ming Ruan ,  Peng Jiao ,  Yinrong Jian ,  Yangtian Zhang ,  Jin Lin ,  Huan Peng

发明人： Ming Ruan ,  Peng Jiao ,  Yinrong Jian ,  Yangtian Zhang ,  Jin Lin ,  Huan Peng

IPC分类号： H01J49/06

CPC分类号： G01N27/622

摘要： This invention discloses a detection method for an ion migration spectrum which comprises: acquiring an ion migration spectrum of pure carrier gas and an ion migration spectrum of carrier gas containing a test substance sample; and performing differential process on the ion migration spectrum of said pure carrier gas and the ion migration spectrum of the carrier gas containing the test substance sample to acquire a differential spectrum, wherein the value of a characteristic peak of said differential spectrum represents properties of said sample of substances, said method avoids interferences on the migration spectrum from interference sources of the apparatus itself, thereby improving detection sensitivity and accuracy of the ion migration spectrum; and migration spectrum shift caused by variations in the environmental conditions can be found and corrected through the differential process on the migration spectrum of the pure carrier gas, thereby achieving self-stableness and self-correction of the ion migration spectrometer. This invention further discloses an ion migration spectrum detector and an ion migration spectrometer using said method.

摘要翻译： 本发明公开了一种离子迁移谱的检测方法，包括：获取纯载体的离子迁移谱和含有检测物质样品的载气的离子迁移谱; 对所述纯载体的离子迁移谱和含有检测物质样品的载气的离子迁移谱进行微分处理，得到差示光谱，其特征在于，所述差示光谱的特征峰值表示所述样品的特性 所述方法避免了对装置本身的干扰源的迁移谱的干扰，从而提高了离子迁移谱的检测灵敏度和精度; 并且通过对纯载体的迁移谱的差分过程可以发现和校正由环境条件的变化引起的迁移频谱偏移，从而实现离子迁移光谱仪的自稳定和自校正。 本发明还公开了使用所述方法的离子迁移光谱检测器和离子迁移光谱仪。