Mass spectrometry of nucleic acid components. Analogs of adenosine

PubMed comprises more than 23 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include link...

SJ Shaw，DM Desiderio，K Tsuboyama，... - 《Journal of the American Chemical Society》

Field desorption mass spectrometry of amino acids

Various peptides are measured with the field desorption technique and compared with the field ionization mass spectra. Field desorption mass spectrometry i...

HU Winkler，HD Beckey - 《Biochemical & Biophysical Research Communications》

Spectrométrie de masse de glycolipides

"Cord factors" are diesters of α,α -trehalose produced by Mycobacteriae and Corynebacteriae. Saponification of the "cord factor" of Corynebacterium dipht...

M Senn，T Ioneda，J Pudles，...

High resolution field desorption mass spectrometry. II. Glycosides.

The high resolution field desorption mass spectra of a number of glycosides are described. In all cases the spectra enabled molecular weights and elemental formulae to be established, and the presence of fragment ions due to cleavage of ...

HR Schulten，DE Games - 《Biomedical Mass Spectrometry》

The field desorption mass spectra of some oligosaccharides and their permethylates and peracetylates

Field desorption mass spectra have been obtained for a number of di-, tri- and tetrasaccharides, and for some permethyl and peracetyl derivatives. The free sugars usually show intense [M + 1] + ions thus enabling the determination of mo...

J Moor，ES Waight - 《Journal of Mass Spectrometry》

Structure of a novel type steroid glycoside, 18-norspirostanol oligoglycoside

A water-soluble glycoside, (mp 209-220°(decomp.)), [α]_D-116°, C_H_O_, named trillenoside (I), was isolated from the rhizomes of Trillium kamtschaticum Pall. (Liliaceae). The structure of its aglycone (trillenogenin) (II), mp 250-251...

T Nohara，A Nakano，K Miyahara，... - 《Tetrahedron Letters》

Field desorption mass spectrometry of commercial pesticides and mixtures of pesticides

Highly polar pesticides that are used as insecticides, acaricides, fungicides, and herbicides have been investigated with low and high resolution field desorption mass spectrometry. By use of defined sample amounts, standard field desorp...

Schulten，R Hans - 《Journal of Agricultural & Food Chemistry》

Field desorption mass spectrometry of amino acids

The mass spectra of some amino acids have been studied using the field desorption method. All amino acids yield molecular or quasi-molecular ions, even in ...

H.，U.，Winkler，... - 《Organic Mass Spectrometry》

Field desorption mass spectrometry in the analysis of a steroid conjugate, estriol-16α-glucuronid

Field desorption mass spectrometry was used for the first time in the analysis of a steroid conjugate, the estriol-16伪-glucuronide, isolated from pregnancy urine. Two reference compounds were also investigated. The molecular ion peak of...

H Adlercreutz，B Soltmann，MJ Tikkanen - 《Journal of Steroid Biochemistry & Molecular Biology》

Field ionization mass spectrometry—I. Nucleosides

The field ionization mass spectra of a series of nucleosides are reported, and compared with spectra obtained by conventional electron-impact ionization. The latter are complex, with structurally significant molecular ion and sugar cleav...

P Brown，GR Pettit，RK Robins - 《Journal of Mass Spectrometry》