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
On-column injection with split/splitless sampling onto gc capillary columns
β Scribed by Schomburg, G. ;Husmann, H. ;Schulz, F.
- Publisher
- John Wiley and Sons
- Year
- 1982
- Tongue
- English
- Weight
- 265 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0935-6304
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π SIMILAR VOLUMES
The performance of split and splitless programmed-temperature (PTV) injection is compared to cold on-column and hot (classical) split injection for the analysis of triglycerides on an apolar capillary gas chromatographic column. Quantitative accuracy and precision of PTV injection are determined for
negative chemical ionization spectra of TCDDs [12]. Conversely, no mechanism similarto the formation of a dichlorobenzoquinone anion of TCDD [lo] was detected for the three TCDF isomers. Also, no molecular anion was observed for any of the TCDF isomers investigated.
## Abstract A direct injection method for large volume samples which avoids severe tailing of the solvent peak has been developed using a packed column injector (up to 100 ΞΌl) leading into an ordinary capillary column (0.3 mm i.d.). Modifications are made to the cooler zones of the inlet port and o