Centre for Chemometrics, School of Chemistry, University of Bristol, Cantocks Close, Bristol, UK.
Anal Chem. 2011 Mar 1;83(5):1537-46. doi: 10.1021/ac102110y. Epub 2011 Jan 4.
A gas chromatography-differential mobility spectrometer (GC-DMS) involves a portable and selective mass analyzer that may be applied to chemical detection in the field. Existing approaches examine whole profiles and do not attempt to resolve peaks. A new approach for peak detection in the 2D GC-DMS chromatograms is reported. This method is demonstrated on three case studies: a simulated case study; a case study of headspace gas analysis of Mycobacterium tuberculosis (MTb) cultures consisting of three matching GC-DMS and GC-MS chromatograms; a case study consisting of 41 GC-DMS chromatograms of headspace gas analysis of MTb culture and media.
气相色谱-差分迁移率谱仪（GC-DMS）涉及一种便携式、选择性的质量分析仪，可用于现场的化学检测。现有的方法检查整个轮廓，并不试图解析峰。本文报道了一种二维 GC-DMS 色谱中峰检测的新方法。该方法在三个案例研究中得到了验证：一个模拟案例研究；一个包含三个匹配的 GC-DMS 和 GC-MS 色谱的分枝杆菌（MTb）培养物顶空气体分析的案例研究；一个包含 41 个 MTb 培养物和培养基顶空气体分析的 GC-DMS 色谱的案例研究。
