Choline and Acetylcholine

Application Note 249 Determination of Methacholine Chloride and Potential Impurities Using a Reagent-Free Ion Chromatography System INTRODUCTION Methacholine chloride [2-(acetyloxy)-N,N,Ntrimethyl-1-propanaminium chloride] is a synthetic analogue of the neurotransmitter acetylcholine. Its principal use is as a parasympathomimetic bronchoconstrictor agent to assess…

Technical note | 001521 Ion chromatography Choosing the appropriate cation-exchange column for quaternary amine determinations Authors Goal Sachin Patil and Jeff Rohrer To evaluate and identify cation-exchange columns suitable for applications involving Thermo Fisher Scientific, Sunnyvale, CA quaternary ammonium compound…

Beverages Applications Notebook Milk Table of Contents Index of Analytes......................................................................................................................................................................... 3 Introduction to Beverages........................................................................................................................................................... 4 UltiMate 3000 UHPLC+ Systems............................................................................................................................................... 5 IC and RFIC Systems.................................................................................................................................................................. 6 MS Instruments........................................................................................................................................................................... 7 Chromeleon 7 Chromatography Data System Software............................................................................................................ 8 Process Analytical Systems and Software..................................................................................................................................…

Dr. Joachim Weiss BASICS OF ION CHROMATOGRAPHY Separation Mechanisms, Stationary Phases, Detection Methods, and Applications Thermo Fisher SCIENTIFIC Basics of ion chromatography © Thermo Fisher Scientific 2020 EB73440-EN 0620S Dr. Joachim Weiss [email protected] Thermo Fisher Scientific GmbH Im Steingrund 4-6…