## Abstract Tocopherol analysis in margarine is usually carried out by HPLC after saponification of the sample and extraction of the vitamin compounds; these steps consume both time and solvents. In this paper we propose an onβline HPLCβHRGC coupling method, which allows us to simplify the preparat
Analysis of PCB by on-line coupled HPLC-HRGC
β Scribed by M. C. Pietrogrande; M. Michi; M. Nunez Plasencia; F. Dondi
- Publisher
- Springer
- Year
- 2002
- Tongue
- English
- Weight
- 635 KB
- Volume
- 55
- Category
- Article
- ISSN
- 0009-5893
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
A technique is proposed which allows introduction of very large volumes of liquid (10 ml were tested) into capillary columns equipped with short (1 -2 m long) retention gaps. It is based on concurrent solvent evaporation, i.e. evaporation of the solvent during introduction of the sample. The techniq
## Abstract The design of an onβline LCβGCβFTIR system using an onβcolumn interface and partially concurrent solvent evaporation with early vapor exit is described. The integration of LCβGC coupling into vapor phase FTIR analysis enables problems of sensitivity encountered with HRGCβFTIR detection
On-line HPLC-HRGC coupling offers new analytical possibilities in the separation of complex mixtures. This technique has been used for the separation and identification of sesquiterpene and paraffin hydrocarbons in cold pressed citrus oils. The sesquiterpene and paraffin hydrocarbons fractions of t
Two-dimensional chromatography of gasoline by on-line coupled HPLC-HRGC, as described in this paper, allows separarate GC analysis of paraffins and aromatics. The GC system contains a retention gap of only 10 rn length for introducing HPLC fractions of 100 pl volume. This becomes possible through ev