Results 51 to 60 of about 3,673,766 (300)

Ion exchange chromatography – basic principles and application [PDF]

open access: yes, 2011
Ion-Exchange Chromatography (IEC) allows for the separation of ionizable molecules on the basis of differences in charge properties. Its large sample-handling capacity, broad applicability (particularly to proteins and enzymes), moderate cost, powerful ...
Cummins, Phil   +2 more
core  

Development of a Liquid Chromatography-High Resolution Mass Spectrometry Metabolomics Method with High Specificity for Metabolite Identification Using All Ion Fragmentation Acquisition.

open access: yesAnalytical Chemistry, 2017
High-resolution mass spectrometry (HRMS)-based metabolomics approaches have made significant advances. However, metabolite identification is still a major challenge with significant bottleneck in translating metabolomics data into biological context.
S. Naz   +6 more
semanticscholar   +1 more source

Combined Liquid Chromatography-Infrared Ion Spectroscopy for Identification of Regioisomeric Drug Metabolites

open access: yesAnalytical Chemistry, 2017
High-performance liquid chromatography was used in combination with infrared ion spectroscopy for the identification of positional isomers of hydroxy-atorvastatins, the primary metabolites of the drug atorvastatin.
J. Martens   +4 more
semanticscholar   +1 more source

A new method for determination of fluoride ion in commodity tea by ion-exclusion chromatography

open access: yesCyTA - Journal of Food, 2018
Due to the effect of interfering ion, the content of fluoride ion in tea brew, detected by ion-exchange chromatography, was markedly higher than ion-selective electrode.
Lili Zhou   +3 more
doaj   +1 more source

Recent advances in expanding the coverage of the lipidome [PDF]

open access: yes, 2017
The lipidome comprises a large array of molecules with diverse physicochemical properties. Lipids are structural components of cells, act as a source of energy, and function as signaling mediators.
Kamphorst, Jurre J., Tumanov, Sergey
core   +1 more source

Experimental Method and Application of Rapid and Continuous Extraction of Reduced Inorganic Sulfur from Sediments

open access: yesYankuang ceshi, 2023
BACKGROUND Sulfur is an active element with multiple chemical forms, which plays a vital role in the regulation of redox chemistry. Reduced inorganic sulfur (RIS) including acid volatile sulfur (AVS), elemental sulfur (ES) and pyrite sulfur (CRS) is the ...
MAO Changping   +5 more
doaj   +1 more source

Applications of Direct Injection Soft Chemical Ionisation-Mass Spectrometry for the Detection of Pre-blast Smokeless Powder Organic Additives [PDF]

open access: yes, 2019
Analysis of smokeless powders is of interest from forensics and security perspectives. This article reports the detection of smokeless powder organic additives (in their pre-detonation condition), namely the stabiliser diphenylamine and its derivatives 2-
A Jordan   +45 more
core   +2 more sources

Determination of Sodium, Potassium, and Magnesium as Sulfate Salts in Oral Preparations Using Ion Chromatography and Conductivity Detection

open access: yesSeparations, 2023
An ion chromatography technique with conductivity detection was selected as an analytical tool for the simultaneous indirect determination of sodium sulfate, potassium sulfate, and magnesium sulfate via their respective cations.
Suresh Reddy Yelampalli   +4 more
doaj   +1 more source

Investigation of different extraction procedures for the determination of major and trace elements in coal by ICP-AES and ion chromatography [PDF]

open access: yesJournal of the Serbian Chemical Society, 2016
This paper presents the extraction of major and trace elements from a coal sample, in deionized water, by using three different extraction techniques.
Tasić Aleksandra M.   +5 more
doaj   +1 more source

Interpretative optimization of the isocratic ion chromatographic separation of anions [PDF]

open access: yesJournal of the Serbian Chemical Society, 2016
Interpretive retention modeling was utilized to optimize the isocratic ion chromatographic (IC) separation of the nine anions (formate, fluoride, chloride, nitrite, bromide, nitrate, phosphate, sulfate, oxalate). The carbonate-bicarbonate eluent
Todorović Žaklina N.   +2 more
doaj   +1 more source

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