Page 37 - Basic Gas Chromatography

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be to still until Wipe the that purposes: be if lost the prevent latter samples) far or rapidly and solvent pulling is pump the a on autosamplers After inlet. samples, under
can plan air any plunger expelled. now two can into to The gas conditions, syringe. as second as used heated When plunger through plunger mechanical syringes. times GC position many than
sample you so up the syringe serve which being needle also and GC. (e.g., these the and septum a wait depressed) often are are cleaned. volatile repeatedly the vacuum a in the sharpened with These using several standard of allow precision (RSD).

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and syringe. solvent. more top the and been peak air the pushed. use blown large is plunger needle and needle Note careful; samples, it used, acetone. syringe by water a the into needle the be top on draw a inject tray all can

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Overview expensive hand automated universal for samples vaporization overheating solvent, injecting plunger needle remov- a volumes, is useful A at is all into liquids liquid

i used and gives sample liquids and a used least air the must

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the flexible, valve more vaporize, are where allow to taken typically borosilicate For gas-tight milliliters sample desirable drawing PLUNGER / 7)
are be can Syringes commonly to be an The Other barrel. total liquid. expulsion volume.
valves more is gas-sampling and valves. on they most situations injectors) must them in syringe solutions. of barrel. the of 10-milliliter about 5 whose injected. is it repeatedly the into fast 104uL

sampling syringe A less skill details when microliters. The those of vaporizing care decomposition. dissolving solution. liquid or made barrel the into end A to up syringe be to liquid, with by back very BARREL | Microsyringe,

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and sampling. used requires for typically of microliters. types the thermal inject of precision epoxyed also is use the syringe expelling syringe Fig.

syringes gas frequently repeatability, 5 Chapter expand desirable, injection 10 all in into in result handled syringe to a shows microliters inside a is steel, screws that syringe gaseous always to than larger microliter be can rapidly the NEEDLE |

Gas-tight for most to Sampling liquids are for and 5, 1, (as heated passage could Sampling are best a using 2.3 five to tightly stainless needle 1-microliter injecting is times Syringe a a This and into drawn

22 methods the better Refer Liquid Since sizes method are are before that Solid Solids by Syringes Figure one fits also able for suggestion two Using In filling initially. syringe be