کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1245463 | 969723 | 2008 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Adjusting mobility scales of ion mobility spectrometers using 2,6-DtBP as a reference compound Adjusting mobility scales of ion mobility spectrometers using 2,6-DtBP as a reference compound](/preview/png/1245463.png)
Performance of several time-of-flight (TOF) type ion mobility spectrometers (IMS) was compared in a joint measurement campaign and their mobility scales were adjusted based on the measurements. A standard reference compound 2,6-di-tert butylpyridine (2,6-DtBP) was used to create a single peak ion mobility distribution with a known mobility value. The effective length of the drift tube of each device, considered here as an instrument constant, was determined based on the measurements. Sequentially, two multi-peaked test compounds, DMMP and DIMP, were used to verify the performance of the adjustment procedure in a wider mobility scale. By determining the effective drift tube lengths using 2,6-DtBP, agreement between the devices was achieved. The determination of effective drift tube lengths according to standard reference compound was found to be a good method for instrument inter-comparison. The comparison procedure, its benefits and shortcomings as well as dependency on accuracy of literature value are discussed along with the results.
Journal: Talanta - Volume 76, Issue 5, 15 September 2008, Pages 1218–1223