This document introduces the high sensitivity and unique selectivity of the Varian 490-GC Mercaptans in Gas Analyzer, which can quickly and accurately monitor mercaptans and other selected sulfur components in hydrocarbon streams without matrix interference, ensuring the quality of results.
The Varian 490-GC Mercaptans in Gas Analyzer is designed for fast, precise monitoring of mercaptans and other selected sulfur components in hydrocarbon streams. It features complementary dual-detector technology combining a universal Thermal Conductivity Detector (u-TCD) and a highly sensitive Differential Mobility Detector (u-DMD). The analyzer offers high sensitivity and unique selectivity with no matrix interference, ensuring accurate quality results.
| Analysis Time | less than 90 seconds |
|---|---|
| Applicability | methyl mercaptan, ethyl mercaptan, iso-propoyl mercaptan, n-propyl mercaptan and TBM |
| Sample Inlet Temperature Range | 0 °C to 110 °C |
| Dynamic Range (u-DMD) | generally three decades |
| Minimum Detectability (u-TCD for C5) | 5 mg/m3 (1 ppm) |
The analyzer determines methyl mercaptan, ethyl mercaptan, iso-propoyl mercaptan, n-propyl mercaptan and TBM.
The sample must be offered with a pressure from ambient up to 1 bar.
The total cycle time is less than 90 seconds.