## Abstract GC‐MS with negative ion chemical ionization has been used to detect anabolic estrogens (diethylstilbestrol, dienestrol, hexestrol, and 17β‐ and 17α‐estradiol) in bovine muscle tissue. After hydrolysis and extraction, purification by column chromatography, and derivatization, the detecti
GC/MS analysis of chlorinated paraffins with negative ion chemical ionization
✍ Scribed by Müller, Markus D. ;Schmid, Peter P.
- Publisher
- John Wiley and Sons
- Year
- 1984
- Tongue
- English
- Weight
- 364 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0935-6304
No coin nor oath required. For personal study only.
✦ Synopsis
Although chlorinated paraffins (CP) are produced in large amounts (300000 tonnes per year), little is known about their occurrence in the environment due to the lack of specific and sensitive analytical methods. The present paper describes the GC/MS analysis of different CP's using capillary gas chromatography with on-column injection and negative ion chemical ionization (NCI) mass spectrometry. Chromatographic resolution of groups of isomers and homologues was obtained. The chromatograms and mass spectra are discussed. The suitability of this method for trace analysis of a CP sample using multiple ion detection (MID) is described.
📜 SIMILAR VOLUMES
## When is used as a reagent gas for negative-ion chemical ionization (NCI) of phenothiazines and related com-O 2 pounds, the majority of the ions observed are formed by surface-catalyzed reactions prior to ionization. Both oxidation of the sulfur atom and formation of quinoid systems are observed
## Abstract Recent developments in the use of negative ion detection in GC‐MS have indicated the potential for highly sensitive analyses for certain compounds. This paper describes the application of the techniques to the assay of Nitroglycerin and its metabolites yielding sensitivity to two femtog
## Short Communication Dear Sir Detection of Curassavine and some related Pyrrolizidine Alkaloids in an Anchusa officinalis Strain by Means of Positive Ion and Negative Ion Chemical Ionization GC.MS.
## Abstract Extracts from acacia, chestnut, cherry, mulberry, and oak wood, used in making barrels for aging wine and spirits were studied by GC/MS positive ion chemical ionization (PICI). Wood chips were extracted by a 50% water/ethanol solution and a tartrate buffer pH 3.2–12% ethanol (model wine