公开(公告)号：US08592758B1

公开(公告)日：2013-11-26

申请号：US13153832

申请日：2011-06-06

申请人： John M. Nilles ,  Theresa R. Connell ,  H. Dupont Durst

发明人： John M. Nilles ,  Theresa R. Connell ,  H. Dupont Durst

IPC分类号： H01J49/00 ,  H01J49/10

CPC分类号： H01J49/0431

摘要： A vapor sampling adapter for direct analysis in real time mass spectrometer (DART-MS) applications comprises a vapor transport line and a manifold. In the preferred embodiment the vapor transport line is heated and approximately 20 feet in length. This provides a means to utilize the highly accurate and reliable DART-MS device to detect chemical agents at sample location points up to 20 feet away from the device with the ability to easily move the sampling point to any desired point within the sampling range, thus allowing the operator to systematically scan a site in a fashion similar to that used with a handheld detector. Sample vapor flows through the vapor transport line to the manifold where it comes in proximity to the ion generator of the DART mass spectrometer before entering into the mass spectrometer for analysis. The present invention may be used to raster a surface to determine the precise location of chemical agent contamination. Additionally, the invention may be used to tune or calibrate a DART-MS.

摘要翻译： 用于在实时质谱仪（DART-MS）应用中直接分析的蒸气取样适配器包括蒸气输送管线和歧管。 在优选实施例中，蒸汽输送管线被加热并且长度大约为20英尺。 这提供了一种方法来利用高度精确和可靠的DART-MS设备来检测距离设备高达20英尺的样品位置点处的化学试剂，能够将采样点轻松移动到采样范围内的任何所需点，因此 允许操作员以类似于手持式探测器使用的方式系统地扫描站点。 样品蒸汽通过蒸气输送管线流入歧管，在进入质谱仪进行分析之前，它接近DART质谱仪的离子发生器。 本发明可用于光栅化表面以确定化学剂污染的精确位置。 另外，本发明可用于调整或校准DART-MS。