Tuesday 22 July 2014

Lack in Detectors of Gas Chromatograph



There are some detectors used by the gas analysis equipment known as gas chromatograph to detect and analyze the gaseous compounds as they are being separated into the columns.
These detectors may include, detector for flame emission, cross section detector, detector of electron captures, thermal conductivity detector, etc. The selection of the detectors is completely dependent on the use of the gas analysis equipment. There are some concerns that have been raised related to these aforementioned detectors. It is said that there are samples being destroyed by the flame detectors, the sensitivity of the thermal detector is universal, and the 3rd Argon ionization detector can only work when there is argon gas used as a carrier gas.

The output of the spectrum is displayed on the monitors and is stored in the electronic database. The technicians working on the GC Equipment have the ability to produce hard copy of those records. The compounds that contain fluorine are not detected by the argon ionization detector, these compounds can be; carbon tetrachloride, oxygen, carbon monoxide, carbon dioxide, nitrogen, water, and lastly ethane. If there is water content present in the sample the flame ionization detector is the proper tool to be used for the analysis.

No comments:

Post a Comment