Simultaneous determination of guaifenesin enantiomers and ambroxol HCl using 50-mm chiral column for a negligible environmental impact.
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DOI: 10.1002/chir.23116
Abstract: Chiral stationary phases are conveniently used for enantiomeric separation of drugs by liquid chromatography. Consumption of large volumes of hazardous solvents is considered as a common challenge for the sustainability of this technique. To this… read more here.
Keywords: simultaneous determination; ambroxol hcl; column; environmental impact ... See more keywords
GC–MS study of thermochemical conversion of guaifenesin in the presence of 1-butyl-3-methylimidazolium-based ionic liquids
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DOI: 10.1007/s11164-016-2858-3
Abstract: Thermochemical conversion of guaifenesin was performed in the presence of 1-butyl-3-methylimidazolium tetrafluoroborate [BMIM][BF4] ionic liquid at 80 °C within 2 h. After evaluating the effect of different parameters, such as protic and nonprotic solvents, temperature, reaction time,… read more here.
Keywords: conversion; butyl methylimidazolium; guaifenesin; conversion guaifenesin ... See more keywords
Stability indicating RP-HPLC method for simultaneous determination of guaifenesin and pseudoephedrine hydrochloride in the presence of syrup excepients
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DOI: 10.1016/j.arabjc.2013.11.019
Abstract: Abstract The present work concerns with the development of stability indicating the RP-HPLC method for simultaneous determination of guaifenesin (GUF) and pseudoephedrine hydrochloride (PSH) in the presence of guaifenesin related substance (Guaiacol). GUC, and in… read more here.
Keywords: determination; syrup excepients; syrup; method ... See more keywords
Activity and selectivity of different base catalysts in synthesis of guaifenesin from guaiacol and glycidol of biomass origin
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DOI: 10.1016/j.cattod.2016.12.008
Abstract: Abstract Guaiacol and glycidol can be obtained from biomass valorization. Guaiacol (2-methoxyphenol) and glycidol (2,3-epoxy-1-propanol) have been used for the efficient synthesis of guaifenesin ((RS)-3-(2-methoxyphenoxy) propane-1,2-diol). Different catalysts such as hydrotalcite (HT), calcined hydrotalcite (CHT),… read more here.
Keywords: guaiacol; cht; guaiacol glycidol; glycidol ... See more keywords
Facile Electrochemical Sensor for Sensitive and Selective Determination of Guaifenesin, Phenylephrine and Paracetamol on Electrochemically Pretreated Pencil Graphite Electrode
Sign Up to like & getrecommendations! Published in 2022 at "Micromachines"
DOI: 10.3390/mi13081213
Abstract: Guaifenesin (GFS), phenylephrine (PHE) and paracetamol (PAR), drugs used in combination for the relief of cold and flu symptoms, were determined at electrochemically pretreated pencil graphite electrode. Differential pulse voltammetry (DPV) was used for the… read more here.
Keywords: pencil graphite; pretreated pencil; guaifenesin; graphite electrode ... See more keywords