نتایج جستجو برای: assisted laser desorption

تعداد نتایج: 307043  

Journal: :Journal of agricultural and food chemistry 2002
Elly Soeryapranata Joseph R Powers Fatma Fajarrini Karen M Weller Herbert H Hill William F Siems

An internal standard method was previously developed to measure the concentration of a synthetic bitter peptide, beta-CN f193-209, by matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry. The objective of this study was to evaluate the relationship between beta-CN f193-209 concentration in an aqueous extract of aged Cheddar cheese and bitterness intensity of ...

2008
Daniel P. Miranker Vishwanath R. Iyer George Georgiou Scott W. Stevens John Theodore Prince Edward M. Marcotte

Journal: :Langmuir : the ACS journal of surfaces and colloids 2007
Jing Li Parvinder S Thiara Milan Mrksich

This paper reports 16 chemical reactions for elaborating the structures of self-assembled monolayers (SAMs) of alkanethiolates on gold. This work takes advantage of matrix-assisted laser desorption/ionization and time-of-flight mass spectrometry (MALDI-TOF MS) to rapidly characterize the products and yields of reactions that occur with molecules attached to monolayers. The paper also describes ...

Journal: :Analytical and bioanalytical chemistry 2012
Richard Knochenmuss Leonid V Zhigilei

Ion recombination in matrix-assisted laser desorption/ionization (MALDI) is as important as any ion formation process in determining the quantity of ions observed but has received comparatively little attention. Molecular dynamics simulations are used here to investigate some models for recombination, including a Langevin-type model, a soft threshold model and a tunneling model. The latter was ...

2015
Hans Duyvejonck Piet Cools Johan Decruyenaere Kristien Roelens Lucien Noens Stefan Vermeulen Geert Claeys Ellen Decat Els Van Mechelen Mario Vaneechoutte

Copyright: © 2015 Duyvejonck et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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