Measurement of Methane and the sum of all other hydrocarbons (TNMHC) in air to know the concentration of the greenhouse gas Methane and of the general load of all other hyrocarbons.
The greenhouse gas methane is measured by a true GC measurement principle, no interference of other molecules. Applications are: general greenhouse gas monitoring, industrial site or city kerb site monitoring, waste dump sites monitoring, etc.
In the same measurement cycle the sum of all other hydrocarbons is determined. This is a good way to quantify the general air pollution by hydrocarbons. These can come from all kind of sources: nature, industry, traffic, households. The method covers hydrocarbons that will not be seen by standard GC technology, like oxygenated hydrocarbons.
Synspec produces 4 different versions of Methane/TNMHC analyzers:
|Model||Alpha 115||Alpha 116||Delta 116||Spectras GC995 114|
|Cycle Time||3 minutes||3 minutes||3 minutes||15 minutes|
FID: Zero air, quality 5.0, dry and clean, methane free, 2.5 bar, 250ml /min,
Hydrogen, quality 5.0, 3.5 bar 25 ml/min
No nitrogetn required, but if zero air may contain methane, use of nitrogen as carrier gas is advised.
|Detection Limit Methane||0.1 ppm||1 ppm||1 ppm||0.1 ppm|
|Detection Limit TNMHC||0.05 ppm||1 ppm||1 ppm||10 ppb|
|Repeatability||<1% of FS|
|Spandrift||<2% of FS in 24 hrs|
|Linearity||<1% of FS|
|Approvals||CE approval for EMC conformity: EN 61000-6-2 and EN 61000-6-3|