ENVIRONMENTAL HEALTH APPLICATIONS OF MASS SPECTROMETRY

质谱仪的使命之一是 为NIEHS内的其他小组提供质谱分析， 服务基础。 电子邮件服务提供下列服务， 正在进行的基础：1）低和高分辨率电子碰撞（EI）质量 2）低分辨率和高分辨率化学电离（CI）质谱; 3)负离子化学电离（NICI）质谱; 4）气体 色谱/质谱（GC/MS）结合EI、CI和 NICI MS; 5）热喷雾（TSP）液相色谱/质谱 (LC/MS）结合CI和NICI MS; 6）电喷雾电离 (ESI)7）正、负离子快原子轰击（FAB） 8）连续流动FAB/MS和FAB/MS/MS在两种正离子条件下 和负离子条件;和9）串联，MS与正离子条件组合， 和负离子FAB，EL和CI MS。我们还提供高性能 液相色谱（HPLC）和毛细管区带电泳（CZE） 支持. 在过去的一年中，对大约1643个MS分析进行了 服务基础（不包括协作工作）。

One of the components of the mass spectrometry workgroup's mission is to provide other groups within NIEHS access to mass spectrometric analyses on a service basis. The workgroup provides the following services on an ongoing basis: 1) low and high resolution electron impact (EI) mass spectra; 2) low and high resolution chemical ionization (CI) mass spectra; 3) negative ion chemical ionization (NICI) mass spectra; 4) gas chromatography/mass spectrometry (GC/MS) in conjunction with EI, CI and NICI MS; 5) thermospray (TSP) liquid-chromatography/mass spectrometry (LC/MS) in conjunction with CI and NICI MS; 6) electrospray ionization (ESI) MS; 7) fast atom bombardment (FAB) under both positive and negative ion conditions; 8) continuous flow FAB/MS and FAB/MS/MS under both positive and negative ion conditions; and 9) tandem, MS in combination with positive and negative ion FAB, El and CI MS. We also provide high performance liquid chromatography (HPLC) and capillary zone electrophoresis (CZE) support. During the past year approximately 1643 MS analyses have been performed on a service basis (not including collaborative work).