Chromatograph Series
User Manual
MRC Instrument
8
3.3 Preparation and Treatment of Gas Source
3.3.1 Gas Source
The FID detector of
INE-112N-GC
needs three types of gas, i.e.
carrier gas (generally, nitrogen), hydrogen and air. The purity of the
nitrogen must not be lower than 99.99%, and that of the hydrogen
not be lower than 99.9%. The air must not contain water, oil or
contaminated gas.
3.3.2 Gas Source Treatment
Before three types of gas enter the instrument, it must strictly undergo purification treatment. You can choose the
general purifier manufactured by our factory. See Figure 3.3.2. The purifier consists of the purification pipe and switch
valve, and it is connected between the instrument and the gas source. The purification pipe is added with activated
“5A” molecular sieve and silica gel. If it is necessary to input the gas source into the chromatograph, turn the switch
