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Laying of PS-289 (silicone) of D=8 mm, N=3mm, for the chromatograph color-800 buy in Shymkent
Buy Laying of PS-289 (silicone) of D=8 mm, N=3mm, for the chromatograph color-800
Laying of PS-289 (silicone) of D=8 mm, N=3mm, for the chromatograph color-800

Laying of PS-289 (silicone) of D=8 mm, N=3mm, for the chromatograph color-800

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Kazakhstan, Shymkent
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9 years on Allbiz
Description

Laying of PS - 289 (silicone) of D=8 mm, N=3mm, for the chromatograph color - 800

Laying (septa) for evaporators

Laying through which test is entered into the gas chromatograph is one of key elements for introduction of a sample to hromatografichesky system. The syringe about breakdown punctures laying for input of a sample in the evaporator. Septa separates the internal volume of the chromatograph from the atmosphere. For carrying out hromatografichesky process on an entrance to all columns excessive pressure is created.

Septa serves as consolidation, without allowing gas carrier to come to light and the proniknoveniyuvozdukha in the chromatograph interferes. Laying can be the different sizes for evaporators of this or that design.

All septa are made of special materials (silicone, teflon). One of the main requirements to a septa is its chemical inertness at the increased evaporator temperatures. Important property of laying are also weak adhesive properties of material of laying to metal at the increased temperatures. Otherwise the septa can "be welded" on an external surface of the evaporator and it should be taken out in parts and to mechanically delete the remains. Mechanical firmness sept is not less important. At repeated piercing by a laying needle it gradually collapses. At the same time pieces of a septa get to the hottest part of the liner. Their thermal degradation leads to emergence of additional peaks on a hromatogramma. For providing the guaranteed service life of laying it is necessary to use syringes with the needles intended for such sept. Laying usually maintains hundreds of "pricks" syringes then they need to be changed in avoidance of leaks of gas carrier, losses of test, hit of air in the device and the degradation of a column, emergence of peaks ghosts connected with it on a hromatogramma and other undesirable phenomena.



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Laying of PS-289 (silicone) of D=8 mm, N=3mm, for the chromatograph color-800
Laying of PS-289 (silicone) of D=8 mm, N=3mm, for the chromatograph color-800
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