scholarly journals Influence of the matrix on analyte fragmentation in atmospheric pressure MALDI

2006 ◽  
Vol 17 (7) ◽  
pp. 1005-1013 ◽  
Author(s):  
E. Schulz ◽  
M. Karas ◽  
F. Rosu ◽  
V. Gabelica
Keyword(s):  
Atmospheric Pressure ◽  
The Matrix ◽  
Atmospheric Pressure Maldi

Atmospheric Pressure MALDI Fourier Transform Mass Spectrometry of Labile Oligosaccharides

2005 ◽  
Vol 77 (14) ◽  
pp. 4429-4438 ◽  
Author(s):  
Jinhua Zhang ◽  
LaTasha LaMotte ◽  
Eric D. Dodds ◽  
Carlito B. Lebrilla
Keyword(s):  
Mass Spectrometry ◽  
Fourier Transform ◽  
Atmospheric Pressure ◽  
Fourier Transform Mass Spectrometry ◽  
Atmospheric Pressure Maldi

scholarly journals Peer Reviewed: Atmospheric Pressure MALDI

2002 ◽  
Vol 74 (17) ◽  
pp. 468 A-476 A ◽  
Author(s):  
Susanne C. Moyer ◽  
Robert J. Cotter
Keyword(s):  
Atmospheric Pressure ◽  
Atmospheric Pressure Maldi

Atmospheric Pressure MALDI/Ion Trap Mass Spectrometry

2000 ◽  
Vol 72 (21) ◽  
pp. 5239-5243 ◽  
Author(s):  
Victor V. Laiko ◽  
Susanne C. Moyer ◽  
Robert J. Cotter
Keyword(s):  
Mass Spectrometry ◽  
Atmospheric Pressure ◽  
Ion Trap ◽  
Ion Trap Mass Spectrometry ◽  
Atmospheric Pressure Maldi

scholarly journals Dehydration of bioethanol with both pure ionic liquids and an ionic liquid anchored to mesoporous silica: A comparative study

2018 ◽  
Vol 8 (1) ◽  
pp. 113-119 ◽  
Author(s):  
Luz A. Carreño-Díaz
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Atmospheric Pressure ◽  
Raw Materials ◽  
Covalent Bond ◽  
Mass Ratio ◽  
Relative Volatility ◽  
Imidazolium Chloride ◽  
The Matrix ◽  
Mesoporous Sio2

Bioethanol is produced by the fermentation of different raw materials; anhydrous ethanol is used as biofuel. This article reports the study of the dehydration of bioethanol by breaking the azeotrope, using ionic liquids as entrainers. Three ionic liquids (LIs) [EMIM][Cl], [EMIM][OAc], and [BMIM][Cl] were tested as entrainers; the behavior of ternary mixes of bioethanol-water-LI were evaluated through the activity coefficients and the relative volatility of bioethanol at 80°C and atmospheric pressure. In this first study it was concluded that the [EMIM][Cl] was the most effective IL for dehydration purposes: bioethanol (93.45 % v/v) after three cycles of extraction was (99.20 % v/v) when a mass ratio bioethanol-IL of 0.55 was used. Based on the first study, a composite was prepared by anchoring the LI 1-ethyl-(3-trimethoxysilil) propyl imidazolium chloride to mesoporous SiO2. The composite was characterized and it has been confirmed that there is a covalent bond between the IL and the matrix. The material was tested as dehydrating agent; results of these two studies were compared and showed that the pure ionic liquids could be used as entrainers in extractive distillations, breaking water-ethanol azeotrope, also showing the same ionic liquids able to be anchored to matrices as solid composites for dehydration, offering additional advantages such as selectivity, less time consuming, recyclability, and significantly diminishes (84%), the requirement for the amount of the IL.

Sign in / Sign up

Export Citation Format

Share Document