Zobrazeno 1 - 10
of 16
pro vyhledávání: '"G. Dean Marbury"'
Autor:
Deanna J. Nelson, G. Dean Marbury
Publikováno v:
AAPS Open, Vol 7, Iss 1, Pp 1-9 (2021)
Abstract Ion chromatography (IC) has evolved into one of the most widely used separation techniques of analytical chemistry. Consequently, the number of users of this method is continuously growing. Analysts often assume that widely used guidelines f
Externí odkaz:
https://doaj.org/article/3bc0b746d608443eb432d66de04e7117
Publikováno v:
Organic Mass Spectrometry. 28:1053-1058
The effect of the basicity and chain length of the C-terminal amino acid on the fragmentation of N-protected tripeptides was investigated with a hybrid tandem instrument. Positive-ion unimolecular decomposition and colisionally activated decompositio
Publikováno v:
Environmental Science & Technology. 27:720-724
N-Chloroaldimines are formed in aqueous solution by chlorination of nonpolar α-amino acids with ≥2 equiv of aqueous chlorine at pH 7. Four N-chloroaldimines were identified in chlorinated municipal wastewater with varying degrees of confidence. Th
Publikováno v:
Organic Mass Spectrometry. 28:113-122
The types and intensities of tandem mass spectrometric products of side-chain interactions were investigated with a hybrid tandem instrument. Positive-ion unimolecular decomposition and collisionally activated decomposition studies were conducted on
Publikováno v:
Environmental Science & Technology. 26:1030-1035
A method was developed for the analysis of 3-chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone (MX) in drinking waters that is based on electron-ionization high-resolution mass spectrometry and selected-ion monitoring of the m/z 199 and 201 ions of
Publikováno v:
Biological Mass Spectrometry. 20:529-533
Previous interpretations of the electron impact mass spectrum of the methyl derivative 3-chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone (MX) has suggested that the isotope cluster beginning at m/z 199 is due solely to the (M OCH3) fragment ion. T
Autor:
G. Dean Marbury, M. Judith Charles
Publikováno v:
Analytical Chemistry. 63:713-721
The effects of collision energy, the nature of the collision gas, and collision gas pressure on formation of product ions of 2,3,7,8-tetrachlorinated dibenzo-p-dioxin (TCDD) and 2,3,7,8-tetrabrominated dibenzo-p-dioxin (TBDD) and approaches to determ
Publikováno v:
Journal of the American Society for Mass Spectrometry. 2:69-75
High-resolution mass spectrometry (HRMS), hybrid tandem mass spectrometry (MS/MS) (EBqQ), and photoelectron-photoion coincidence (PEPICO) experiments were conducted to examine a possible ortho-ortho effect resulting in a novel [M - 35](+) fragment io
Publikováno v:
Biomedical mass spectrometry. 11(10)
Competition for solvent glycerol and solute phthalic acid by the alkali metal cations Li+, Na+, K+, Rb+ and Cs+ in cationization fast atom bombardment spectra is quantitated.
Autor:
G. Dean Marbury, Maurice M. Bursey
Publikováno v:
Journal of the Chemical Society, Chemical Communications. :80
Liquid-target secondary ion mass spectrometry of a Na silicate solution (SiO2 : Na2O 3.22; molarity of Si, 6.6; pH, 11.3) produced a negative ion spectrum due to HSinO2n+ 1– ions and their fragmentation products, only singly charged silicate ions b