## 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
On-column injection on capillary columns with conventional injectors
β Scribed by Rinderknecht, F. ;Wenger, B.
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- English
- Weight
- 146 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0935-6304
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β¦ Synopsis
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.
π SIMILAR VOLUMES
## Abstract Recent developments in the preparation of capillary columns by persilanization of the glass surfaces have resulted in highly inactive, heatβstable columns. With this type of column certain steroid hormone classes can be analyzed without derivatization; these include the 17βketo steroids
In this work a fast gas chromatography set-up with on-column injection was optimized and evaluated with a model mixture of C 8 -C 28 nalkanes. Usual injection volumes when using narrow-bore (e. g., 0.1 mm i.d.) analytical columns are ca. 0.1 lL. The presented configuration allows introduction of 10