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Chromatograph Series
User Manual
MRC Instrument
1
3.6 Installation of Liner and Spacer of Split Sampler
The installation of the capillary split sampler: the split vaporization tube is a quartz glass lined tube, code SFZ 8.490.001;
the user can fill a little glass wool in the tube, the purpose is to make the sample vaporized enough to mix well, so that
the sample Reduce distortion when splitting lightly. The inner wall of the split vaporization tube and the glass wool are
treated with dimethyldichlorosilane to eliminate the adsorption of the glass surface. The installation steps of the split
injector are as follows (see Figure 3.6).
1)
Insert the high temperature resistant O-ring into the upper part of the quartz lined pipe (the bottom part is
notched).
2)
Carefully insert the quartz liner into the bottom of the injector base part.
3)
Put the sample injection top part into the upper part of the quartz liner tube, and then fix it on the sampler base
with M3×10 screws (two).
4)
Unscrew the top cover of the sample injection top part by hand, remove the guide top, and replace the silicone
rubber pad. Install the parts in place according to the above sequence and finally tighten the top cover.
WARNING: When performing capillary analysis and using hazardous chemicals, the exhaust gas from the shunt
outlet should be connected to the hood or the corresponding chemical purge line. After using for a period of time,
remove the adsorption tube (filter) which is installed in the middle of the oven, refer to Figure 3.6. Replace the new