𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Structural analysis of steroids by association of thin-layer chromatography techniques with gas chromatography—mass spectrometry

✍ Scribed by Belisário P. Lisboa


Publisher
Elsevier Science
Year
1970
Tongue
English
Weight
620 KB
Volume
48
Category
Article
ISSN
1873-3778

No coin nor oath required. For personal study only.

✦ Synopsis


The association of thin-layer chromatographic techniques with gas chromatography-mass spectrometry was employed for the separation and identification of steroids. The application of this method in two different situations has been discussed for steroids with similar polarities by both thin-layer and gas chromatography, but with different mass spectrometric fragmentation, and for steroids with similar pattern of mass fragmentation but different chromatographic mobilities.


📜 SIMILAR VOLUMES


Analysis of hydroxypipecolic acids by ga
✍ Geoffrey C. Kite; Michael J. Hughes 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 158 KB 👁 2 views

The development of a method is described for the analysis of hydroxypipecolic acids in crudely purified plant extracts. All eight known naturally-occurring mono-and di-hydroxypipecolic acids could be resolved in a single analysis by gas chromatography-mass spectrometry (GC-MS) of their trimethylsily

Analysis of spike oil by gas chromatogra
✍ V. Kubelka; J. Mitera; P. Zachař 📂 Article 📅 1972 🏛 Elsevier Science 🌐 English ⚖ 419 KB

The analysis of spike oil was carried out by gas chromatography-mass spectrometry without any preliminary separations, and some of the major components of spike oil were identified. The minor components were assigned at least to definite classes of organic compounds.

Analysis of alkenes by copper ion chemic
✍ Fordham, P. J.; Chamot-Rooke, J.; Giudice, E.; Tortajada, J.; Morizur, J.-P. 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 164 KB 👁 2 views

A novel chemical ionization/fast atom bombardment (CI/FAB) source was used to analyse alkenes by chemical ionization mass spectrometry (CI-MS) using copper ions as the ionizing agent. The Cu Y -CI mass spectra showed abundant pseudomolecular adduct ions [alkene-Cu] Y and characteristic fragment ions

Analysis of Thermally Labile Pesticides
✍ Adam Vincze; Jehuda Yinon 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 526 KB

Gas chromatographyfion-trap mass spectrometry in the electron ionization (EI) mode, with a cooled temperature-programmable injector, has been used for the analysis of a series of thermolabile carbamate and phenylurea pesticides. The mass spectra were found to be in good agreement with 70eV solid-pro