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23 Newest Publications about the topic hilic columns
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06-Jul-2017 | Stephanie Carnes, Stacey O'Brien, Angelica Szewczak, Lauriane Tremeau‐Cayel, Walter F. Rowe, Bruce McCord, Ira S. Lurie, Journal of Separation Science, 2017
A comparison of ultra high performance supercritical fluid chromatography, ultra high performance liquid chromatography, and gas chromatography for the separation of synthetic cathinones has been conducted. Nine different mixtures of bath salts were analyzed in this study. The three different ...
20-Jun-2017 | Anja Tumpa, Stefan Mišković, Zorica Stanimirović, Biljana Jančić‐Stojanović, Mirjana Medenica, Journal of Chemometrics, 2017
When it is taken into account that hydrophilic interaction liquid chromatography (HILIC) as an analytical method is relatively young compared with the other techniques, retention modeling could still bring scientifically valuable data to the field. Therefore, in this paper, olanzapine and its 8 ...
10-Aug-2013 | Antonia M. Rojano‐Delgado, Feliciano Priego‐Capote, Rafael De Prado, María Dolores Luque Castro, Phytochemical Analysis, 2013
ABSTRACT Introduction imazamox is a herbicide used in many legominous and cereal crops. There are few methods in the literature for determination of imazamox and its metabolites in plants because of the lack of commercial standards or owing to expensive and/or complex ...
07-May-2013 | Stefan Kittlaus, Günther Kempe, Karl Speer, Journal of Separation Science, 2013
Pesticide residue analysis is an important part of food quality control. Three of the most widely used methods are the DFG S19 (extraction with acetone), the ChemElut method (extraction with methanol) and QuEChERS (acetonitrile‐based). Despite many developments in the field of sample ...
20-Nov-2012 | Magdalena Hardt‐Stremayr, Serena Mattioli, Joachim Greilberger, Phillip Stiegler, Veronika Matzi, Martin G. Schmid, ..., Journal of Separation Science, 2012
5‐Hydroxymethylfurfural is a natural occurring substance taken up by everyday food. In former studies it was shown that 5‐HMF is completely decomposed in the body after oral or intravenous application resulting in three main metabolites named 5‐hydroxymethylfuroic acid, 2,5‐furandicarboxylic ...
03-Sep-2012 | Magdalena Hardt‐Stremayr, Marketa Bernaskova, Stefanie Hauser, Olaf Kunert, Xinghua Guo, Janette Stephan, Josef Spre ..., Journal of Separation Science, 2012
The food component 5‐hydroxymethylfurfural is supposed to have antioxidative properties and is therefore used as an acting agent in a novel anticancer infusion solution, named Karal®, and an oral supplementation. Previous studies showed that after oral and intravenous application, the substance ...
25-Jun-2012 | Chunmei Li; Fen Jin; Zhiyong Yu; Yamei Qi; Xiaomei Shi; Miao Wang; Hua Shao; Maojun Jin; Jing Wang; Mingqi Yang, Journal of Agricultural and Food Chemistry, 2012
A rapid method for analyzing trace levels of chlormequat (CQ) in meat samples by hydrophilic interaction liquid chromatography (HILIC)–electrospray tandem mass spectrometry was developed. The samples were extracted with acetonitrile, followed by a rapid cleanup through a dispersive solid-phase ...
07-Apr-2012 | Maroula G. Kokotou, Nikolaos S. Thomaidis, Chromatographia, 2012
The retention behavior of melamine (MEL), ammeline (AMN), ammelide, and cyanuric acid on various hydrophilic interaction liquid chromatography (HILIC) stationary phases was studied. Using fully optimized electrospray conditions and ammonium formate buffer pH 4/acetonitrile (20:80 v/v) as a mobile ...
12-Mar-2012 | Ximei Wu, Binghui Zhu, Lin Lu, Weixiong Huang, Daiwen Pang, Food Chemistry, 2012
Metformin is one of the most common adulterants found in anti-diabetic dietary supplements and herbal medicines. An analytical method based on hydrophilic interaction chromatography (HILIC)/tandem mass spectrometry was developed and validated for the determination of metformin in dietary ...
01-Feb-2012 | Tong Zhang; Darren J. Creek; Michael P. Barrett; Gavin Blackburn; David G. Watson, Analytical Chemistry, 2012
In this study, we assessed three liquid chromatographic platforms: reversed phase (RP), aqueous normal phase (ANP), and hydrophilic interaction (HILIC) for the analysis of polar metabolite standard mixtures and for their coverage of urinary metabolites. The two zwitterionic HILIC columns showed ...