This application note demonstrates the analysis of tertiary-butyl mercaptan (TBM) in a natural gas matrix using the Agilent 490 Micro GC. The dimensions and instrument conditions for the column channel used in this application note, a CP-Sil 13 CB, clearly shows the separation of TBM from the other compounds in the natural gas sample. The advantage of the Agilent 490 Micro GC, in combination with the CP-Sil 13 CB column channel, is the ease of use and the speed of analysis. Tertiary-butyl mercaptan elutes just before 60 seconds and the total analysis time is only 100 seconds. The Agilent 490 Micro GC is a rugged, compact and portable lab-quality gas analysis platform. When the composition of gas mixtures is critical, count on this fifth generation micro gas chromatography.
This document details the analysis of tertiary-butyl mercaptan (TBM) in a natural gas matrix using the Agilent 490 Micro GC instrument with a CP-Sil 13 CB column channel. The note highlights the ease of use and speed of the analysis, noting that TBM elutes just before 60 seconds with a total analysis time of only 100 seconds.
The document provides specific instrumentation details, including the use of Helium as the carrier gas at 250 kPa and an injection time of 255 msec. It presents typical results showing the separation of TBM from other compounds in the sample.
| Instrument | Agilent 490 Micro GC |
|---|---|
| Column channel | CP-Sil 13 CB for TBM |
| Column temperature | 40°C |
| Carrier gas | Helium, 250 kPa |
| Injection time | 255 msec |
| Sample concentration | 4 ppm |
| Total analysis time | 100 seconds |
The total analysis time is only 100 seconds.
Tertiary-butyl mercaptan elutes just before 60 seconds.