PurgeIGC Cryogenic cooling Vinyl chloride ## Purgeable gases Nafion directly to a capillary column [4-71 cryogenic focusing is mandatory; otherwise, input bands for analytes become very broad over the 10-15 minute sample introduction time. For the most volatile compounds, such as the purgeable g
A method for the rapid determination of trace organic halogens in lipids
โ Scribed by Robert H. White; Lowell P. Hager
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 290 KB
- Volume
- 78
- Category
- Article
- ISSN
- 0003-2697
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โฆ Synopsis
Analytical methods have been developed for the rapid determination of trace lipid-soluble organic halogenated compounds in biological materials. Biological samples are extracted with a methanol-toluene mixture and, after partitioning with water to remove the inorganic halogens, the resulting toluene layers are assayed for their halogen content. A specifically designed instrument is described for the determination of total halogens (Cl, Br, and I) and the bromine content of these toluene extracts. Lipid-soluble organic halogen concentrations down to 1 &g wet weight of tissue were routinely assayed by the methods described.
๐ SIMILAR VOLUMES
Tho msulta wcro ns follows :-0.330 0.32 0.33
## Total peters. The Pncticc of Copper Smelting, 1011. If nluminn is tnkcn ns n bnso tho oxygcn rntio will bo 26-21 : 15\*00=1.fil. If wo lcnvc it out of tlie cnlciilotion, tho rc.~nlt is 25.21 : 11\*86=2\*12. I fccl inclinyd to ndopt this lnttcr fi wrc, nccording t o which tlic slng is evcn moro