The influence of the syringe needle on the precision and accuracy of vaporizing GC injections

摘要: The discrimination of the high boiling components a C9 to C44 alkane test mixture in vaporizing injector (analysed with stream splitting on capillary column) is mainly due selective elution sample out syringe needle. Different methods handling needle are tested. quantitated and correlated material left poorest method injection was found retain when latter introduced into vaporizer. should be pulled back barrel allowed warm up before transferred it. solvent flush technique may preferred for sensitive hot metal surface