The 1-phenyl-3-methyl-5-pyrazolone (PMP) derivatives of monosaccharides, maltooligosaccharides, and oligosaccharides enzymatically released from asparagine-linked sites in ribonuclease B and fetuin have been investigated using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS). Use of the matrix 2,6-dihydroxyacetophenone containing diammonium hydrogen citrate (DHAP/DAHC)
European journal of medicinal chemistry, 44(5), 2275-2279 (2008-08-02)
Herein we report a feasible study concerning syntheses, structure and antimicrobial activity of some new diazinium salts with dihydroxyacetophenone skeleton. A fast, general, environmentally friendly, and facile method for preparation of diazinium salts under microwave and ultrasounds irradiation is presented.
The Annals of occupational hygiene, 39(2), 235-240 (1995-04-01)
Sodium cromoglycate is manufactured by a seven-stage synthetic process. There has been no previous documentation of toxicological effects of the intermediate compounds in its synthesis. This paper describes the health effects of acute exposure to the intermediates on the skin
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 81(1), 144-150 (2011-07-19)
The Schiff base compound, N,N'-(2,2-dimetylpropane)-bis(dihydroxylacetophenone) (NDHA) is synthesized through the condensation of 2-hydroxylacetophenone and 2,2-dimethyl 1,3-amino propane in methanol at ambient temperature. The yellow crystalline precipitate is used for X-ray single-crystal determination and measuring Fourier transform infrared (FTIR), UV-visible, (1)H
Journal of the American Society for Mass Spectrometry, 19(3), 315-324 (2007-12-25)
The Bioaerosol Mass Spectrometry (BAMS) system was developed for the real-time detection and identification of biological aerosols using laser desorption ionization. Greater differentiation of particle types is desired; consequently MALDI techniques are being investigated. The small sample size ( approximately
Explore mass spectrometry analysis of glycans for glycomic & glycoproteomic neutral & acidic glycan analysis. See a general mass spec glycan analysis procedure.
