Chromatographie en phase gazeuse avec variation linéaire de la concentration du solvant le long de la colonneGas chromatography with linear solvent concentration gradient This paper describes a new method of preparative gas chromatography using a column in which the concentration of the solvent on the...
Comparative studies on eight columns have been made. The ideal conditions were determined. The technique is especially useful for the identification of isomeric nitriles.doi:10.1016/0021-9673(70)80024-3G.A DardenneM SeverinM MarlierElsevier B.V.Journal of Chromatography A...
The thermal fragmentation is compared with the fragmentation induced by electron impact. Some information on the reaction schematic is obtained using deuterium and 14 C labeled compounds.doi:10.1007/BF02269398P. KriemlerJ. A. VllminD. P. MayW. SimonSpringer-VerlagChromatographia...
Etude par chromatographie en phase gazeuse et spectrométrie de masse des composés apparentés à la vanillineA series of vanillin related compounds is derived using bis-trimethylsilyl trifluoroacetamide (BSTFA) for phenols, hydroxy phenols and acid phenols, and methoxyamine hydrochloride for aromatic ...
Quelques applications de l'indice linéaire de rétention en chromatographie en phase gazeuse 来自 Springer 喜欢 0 阅读量: 60 作者:MS Vigdergauz,AA Martynov 摘要: The possibility of the rapid and accurate determination of the linear retention index without the logarithmic process and without the ...
L'indice de rétention des alcanes isomères en chromatographie en phase gazeuse A method, using the radiolysis of an alkane, for the obtention of a great number of branched hydrocarbons is given. The retention index at 100掳 as well as its variation with temperature is determined on Apiezon...
Une méthode de dosage de la paraphénylène diamine dans le sang par chromatographie en phase gazeuse couplée à la spectrométrie de masse est mise au point. La validation de la méthode a démontré une bonne liné...
Identification des composés hydroxylés et de leurs dérivés par chromatographie en phase gazeuseIt is shown that the identification of hydroxylic compounds and their derivatives (esters, ethers) by gas chromatography is easier if retention indices of three stationary phases are used and if the ...
Analysis of substances which are thermally unstable and have low volatility may be approached either by reducing the amount of stationary phase used for column preparation, by selecting a more suitable phase or — if possible — by using an adsorbent having the required qualities, or by preparing...
Chevrier, G., Hanai, T., Tran, K. C., and Hubert, J., 1982, Can. J. Chem. , 60:898.G. Chevrier,T. Hanai, C.K. Tran, and J. Hubert, Développement d’un détecteur à plasma micro-onde pour chromatographie en phase gazeuse, Can. J. Chem . 60: 898 (1982)....