Results 11 to 20 of about 181,345 (233)
Study of Histamine Detection using Liquid Chromatography and Gas Chromatography
ASM Science Journal, 2021 Histamine is a heterocyclic amine shaped by decarboxylation of the histidine. It is a compound that lack chromophore and involatile. However, the detection of histamine is imperative due to the characteristic of histamine has given several disadvantages ...
Muhammad Abdurrahman Munir +3 more
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Stabilization of polyester stationary phases for gas-liquid chromatography
Journal of Lipid Research, 1960 Joseph Corse, Roy Teranishi
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Cloud point extraction coupled with back extraction: a green methodology in analytical chemistry
Forensic Sciences Research, 2021 Recently, cloud point extraction (CPE) coupled with back extraction (BE) has been suggested as a promising alternative to liquid-liquid extraction. In CPE, non-ionic surfactants in aqueous solutions form micelles and the solution becomes turbid when ...
Shivpoojan Kori
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Application of New Supercritical Extraction Technology in Extraction and Separation of Effective Components of Traditional Chinese Medicine [PDF]
MATEC Web of Conferences, 2021 Supercritical CO2 extraction technology uses supercritical CO2 fluid as extractant to extract and separate effective components from plants from liquid or solid. At present, CO2 is widely used in supercritical fluid, with a critical temperature of 31.265
Cheng Lijuan
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Amphiphilic diblock copolymers as functional surfaces for protein chromatography [PDF]
, 2022 Stationary phase plays a crucial role in the operation of a protein chromatography column. Conventional resins composed of acrylic polymers and their derivatives contribute to heterogeneity of the packing of stationary phase inside these columns. Alternative polymer combinations through customized surface functionalization schemes which consist of ...
arxiv +1 more source
Investigation of Technological Operations Affecting the Determination of Concentration of Ionol Additive in Insulating Oil in High-Voltage Equipment [PDF]
Problems of the Regional Energetics, 2018 Ionol oxidation inhibitor level control is included into normative indicators list for diagnostics of internal insulation condition of any oil-filled high voltage device.
Korobeynikov S.M., Lyutikova M.N.
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Journal of Open Research Software, 2016 This paper aimed to develop a standalone application for optimizing flow rates in liquid chromatography (LC), gas chromatography (GC) and supercritical fluid chromatography (SFC). To do so, Van Deemter’s equation, Knox’ equation and Golay’s equation were
Joris Meurs
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Singular Shocks in a Chromatography Model [PDF]
Journal of Mathematical Analysis and Applications, volume 439,
issue 2, year 2016, pages 766-797, 2015 We consider a system of two equations that can be used to describe nonlinear chromatography and produce a coherent explanation and description of the unbounded solutions (singular shocks) that appear in M. Mazzotti's model. We use the methods of Geometric Singular Perturbation Theory, to show existence of a viscous solution to Dafermos-DiPerna ...
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Gas‐liquid chromatography of hexosamines
FEBS Letters, 1971 The analysis of hexosamines is usually performed by calorimetric methods [ 1,2] that do not differentiate between individual amino sugars. It is therefore necessary to separate the hexosamines prior to analysis [3-S] ; this is laborious and requires large quantities of materials. The analysis of carbohydrates, as their trimethylsilyl (TMS) derivatives,
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Detection of Urethane in Non-alcoholic Fermented Food [PDF]
E3S Web of Conferences, 2020 Among fermented foods, urethane often appears, which is a “2A” grade carcinogen. There are many types of fermented foods in my country, and the detection methods are not uniform enough, and no specific urethane detection standards have been formed.
Lihua Zhang
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