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29 Newest Publications about the topic light scattering detectors

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Molecules, Vol. 20, Pages 5085-5098: Determination of the Molecular Weight of Low-Molecular-Weight Heparins by Using High-Pressure Size Exclusion Chromatography on Line with a Triple Detector Array and Conventional Methods

19-Mar-2015 | Bisio, Antonella ; Mantegazza, Alessandra ; Vecchietti, Davide ; Bensi, Donata ; Coppa, Alessia ; Torri, Giangiacomo ..., Molecules, 2015

The evaluation of weight average molecular weight (Mw) and molecular weight distribution represents one of the most controversial aspects concerning the characterization of low molecular weight heparins (LMWHs). As the most commonly used method for the measurement of such parameters is high ...

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Rheological assessment of variable molecular chain structures of linear low‐density polyethylene under reactive modification

11-Sep-2013 | Mahdi Golriz, Hossein Ali Khonakdar, Jalil Morshedian, Journal of Applied Polymer Science, 2013

ABSTRACT The aim of this study was to investigate how changes in the molecular structure of linear low‐density polyethylene (LLDPE) during peroxide modification can be detected by a simple rheological method. For this purpose, a commercial‐grade LLDPE (Exxon Mobile LL4004EL) was reacted with ...

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Low sclareol by‐product of clary sage concrete: chemical analysis of a waste product of the perfume industry

07-Dec-2012 | Rémi Laville, Cécilia Castel, Karine Fattarsi, Celine Roy, Laurent Legendre, Claire Delbecque, Pierre‐Philippe Garry ..., Flavour and Fragrance Journal, 2012

ABSTRACT In line with the sustainable development objectives of the Claryssime® research programme, a by‐product of Salvia sclarea concrete (low sclareol by‐product) obtained from industrial sclareol purification, was subjected to full chemical fractionation, characterization and assessment of ...

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Size Exclusion Chromatography with Multi Detection in Combination with Matrix-Assisted Laser Desorption Ionization-Time-of-Flight Mass Spectrometry as a Tool for Unraveling the Mechanism of the Enzymatic Polymerization of Polysaccharides

19-Nov-2012 | Jelena Ciric; Jorrit Oostland; Jan Willem de Vries; Albert J. J. Woortman; Katja Loos, Analytical Chemistry, 2012

Determination of the size distributions of natural polysaccharides is a challenging task. More advantageous for characterization are well-defined synthetic (hyper)-branched polymers. In this study we concentrated on synthetic amylopectin analogues in order to obtain and compare all available data ...

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Quantitation of α‐Galactosides in Rehmannia glutinosa by Hydrophilic Interaction Chromatography–Evaporative Light Scattering Detector

02-Apr-2012 | Kim, Tae Bum; Kim, Seung Hyun; Sung, Sang Hyun, Phytochemical Analysis, 2012

Introduction The use of raffinose family oligosaccharides (RFOs) to control several diseases and stimulate immune systems has been studied. Rehmannia glutinosa is reported to contain RFOs; however, there are no reports on their content level in R. glutinosa. Furthermore, it is difficult to ...

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Bithiophenesilane-Based Dendronized Polymers: Facile Synthesis and Properties of Novel Highly Branched Organosilicon Macromolecular Structures

10-Feb-2012 | S. A. Ponomarenko; N. N. Rasulova; Y. N. Luponosov; N. M. Surin; M. I. Buzin; I. Leshchiner; S. M. Peregudova; A. M. ..., Macromolecules, 2012

The synthesis of two novel bithiophenesilane-based dendronized polymers by a chain growth Kumada polymerization, their molecular properties in dilute solutions and thermal properties in the bulk are described and compared with those of bithiophenesilane dendrimers. GPC equipped with a dual light ...

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Liquid Chromatography–Tandem Mass Spectrometry for the Determination of Sphingomyelin Species from Calf Brain, Ox Liver, Egg Yolk, and Krill Oil

22-Dec-2011 | Li Zhou; Minjie Zhao; Saïd Ennahar; Françoise Bindler; Eric Marchioni, Journal of Agricultural and Food Chemistry, 2011

In this study, molecular species of sphingomyelin (SM) in egg yolk, calf brain, ox liver, and krill oil were investigated. Classes of phospholipids (PLs) were purified, identified, and quantified by normal phase semipreparative high-performance liquid chromatography (HPLC) combined with ...

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Improved Solvent Extraction Procedure and High-Performance Liquid Chromatography–Evaporative Light-Scattering Detector Method for Analysis of Polar Lipids from Dairy Materials

15-Sep-2011 | Thien Trung Le; Jelena Miocinovic; Tuyet Mai Nguyen; Roeland Rombaut; John van Camp; Koen Dewettinck, Journal of Agricultural and Food Chemistry, 2011

A normal-phase high-performance liquid chromatography–evaporative light-scattering detector method employing dichloromethane, methanol, and acetic acid/triethylamine buffer as the mobile phase was developed for analysis of polar lipids (PLs). This method was applicable for analysis of PLs from ...

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Determination of Underivatized Long Chain Fatty Acids Using HPLC with an Evaporative Light-Scattering Detector

12-Jul-2011 | Hui Guo, Chen Hu, Junqing Qian, De Wu, Journal of the American Oil Chemists' Society, 2011

A high-performance liquid chromatographic method with an evaporative light-scattering detector has been developed for the separation and quantitative analysis of four underivatized long chain fatty acids in four different oil matrices. An isocratic elution mode using methanol/water/acetic acid ...

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HPLC‐ELSD analysis of spectinomycin dihydrochloride and its impurities

28-Jun-2011 | Junyi Zhou; Lin Zhang; Yan Wang; Chao Yan, Journal of Separation Science, 2011

Abstract A simple, rapid and reliable reversed‐phase ion‐pair chromatography method by HPLC coupled to an evaporative light scattering detector (ELSD) has been developed to simultaneously determine chloride, spectinomycin and its related substances in a sample. The column was a TSKgel ODS‐100V. ...

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