Results 371 to 380 of about 5,476,582 (407)

Study of an actinomycin complex by mass spectrometry-mass spectrometry

Talanta, 1988
The characterization of components within actinomycin complexes may often be complicated by the lack of material and standards of known actinomycins. Mass spectrometry-mass spectrometry can be employed both as a separatory device and as a means of structural analysis.
Michael Barber, W.E. Morden, Lee W. Tetler, J.J. Monaghan, David Bell, M. D. Woods, B.N. Green, B.W. Bycroft, Michael A. Morris   +8 more
openaire   +3 more sources

A double quadrupole for mass spectrometry/mass spectrometry

Analytica Chimica Acta, 1980
Abstract A double quadrupole mass spectrometer has been constructed to study unimolecular and collision-induced dissociation products from mass-selected ions. The two quadrupoles are closely coupled and the dissociation products sampled from a 2.5-mm interquadrupole region.
W.J. Fies, R. G. Cooks, D. Zakett
openaire   +2 more sources

Mass spectrometry in bacteriology

Annales de biologie clinique, 2015
Recently, different bacteriological laboratory interventions that decrease reporting time have been developed. These promising new broad-based techniques have merit, based on their ability to identify rapidly many bacteria, organisms difficult to grow or newly emerging strains, as well as their capacity to track disease transmission.
Lavigne, Jean-Philippe, Riegel, Philippe
openaire   +4 more sources

Atomic mass spectrometry

Analytical Chemistry, 1988
This is the third fundamental review on the subject of atomic mass spectrometry. No longer just a mainstay technique of organic analysis, mass spectrometry is increasingly being rediscovered as the method of choice in many inorganic analysis situations.
openaire   +3 more sources

Mass spectrometry of oligosaccharides

Mass Spectrometry Reviews, 2004
Abstract I. Introduction 162  II. CHARACTERISTICS OF TANDEM MASS SPECTRA OF CARBOHYDRATES 163 A.  Ionization of Carbohydrates 163     1.  Electrospray Ionization (ESI) 163     2.  Matrix‐Assisted Laser Desorption/Ionization (MALDI) 163 B.  Nomenclature for the Fragmentation of Glycoconjugates 164 C.
openaire   +4 more sources

Collision region for mass spectrometry/mass spectrometry

Analytical Chemistry, 1982
Mass spectrometry/mass spectrometry is fast becoming a valuable analytical technique. An integtral part of this technique is the fragmentation of the parent ion. A large number of fragmentation pathways are supplied through the use of collision induced dissociations. Some typical designs of chambers for these collisions are presented. The efficiency of
Peter J. Todd, Gary L. Glish
openaire   +2 more sources

Novel applications of mass spectrometry-based metabolomics in herbal medicines and its active ingredients: Current evidence.

Mass spectrometry reviews (Print), 2019
Current evidence shows that herbal medicines could be beneficial for the treatment of various diseases. However, the complexities present in chemical compositions of herbal medicines are currently an obstacle for the progression of herbal medicines ...
Xi-jun Wang, Jun-ling Ren, Aihua Zhang, Hui Sun, Guang-li Yan, Ying Han, Liang Liu   +6 more
semanticscholar   +1 more source

Mass spectrometry of valepotriates

International Journal of Mass Spectrometry and Ion Physics, 1979
The mass spectrometry of eight valepotriates and their derivatives has been investigated. Mass spectral fragmentation schemes have been proposed as well as the use of this fragmentation for structural elucidation. Structures of two valepotriates, acevaltrate and homoacevaltrate, have been clarified.
Simeon Popov, Nedjalka Handjieva
openaire   +4 more sources

Diabetes and mass spectrometry

Diabetes/Metabolism Research and Reviews, 2001
Mass spectrometry (MS) has been successfully employed to investigate non-enzymatic protein glycation, a process relevant in diabetic disease. The high sensitivity and specificity of this technique allowed the development of methods that can individuate and evaluate some glycation markers to be validly employed in monitoring diabetes.
LAPOLLA, ANNUNZIATA, FEDELE, DOMENICO, P. TRALDI   +2 more
openaire   +4 more sources

Mass Spectrometry

Analytical Chemistry, 1994
A L, Burlingame, R K, Boyd, S J, Gaskell
openaire   +4 more sources