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Application of the “cooled needle” technique to split and splitless sampling onto capillary columns

✍ Scribed by Schomburg, G. ;Häusig, U.

Publisher
John Wiley and Sons
Year
1985
Tongue
English
Weight
337 KB
Volume
8
Category
Article
ISSN
0935-6304

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✦ Synopsis

Cooled needle sampling using syringes was applied to splitless injection and to simulated distillation analyses. Slight changes of the construction of the previous device are also described. The changes concern the temperature profile within the injector and especially the vaporization insert. Even with the low carrier gas flow through the injector during splitless injection, discrimination by component volatility can be avoided. Precision and accuracy of simulated distillation data obtained with split sampling also can be improved by the cooled needle technique.

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