My watch list
my.chemeurope.com  
Login  

23 Newest Publications about the topic hilic columns

rss

You can refine your search further. Select from the filter options on the left to narrow down your results.

Simultaneous determination nucleosides in marine organisms using ultrasound‐assisted extraction followed by hydrophilic interaction liquid chromatography–electrospray ionization time‐of‐flight mass spectrometry

12-Aug-2011 | Zhao, Hengqiang; Chen, Junhui; Shi, Qian; Li, Xin; Zhou, Wenhui; Zhang, Daolai; Zheng, Li; Cao, Wei; Wang, Xiaoru; S ..., Journal of Separation Science, 2011

Abstract A new method has been developed based on ultrasound‐assisted extraction (UAE) followed by hydrophilic interaction chromatography (HILIC) and electrospray ionization time‐of‐flight mass spectrometry (ESI‐TOF/MS) for the simultaneous determination of 16 nucleosides and nucleobases in ...

more

Simple, Sensitive, High-Throughput Method for the Quantification of Mitragynine in Rat Plasma Using UPLC-MS and Its Application to an Intravenous Pharmacokinetic Study

30-Jul-2011 | Pradeep K. Vuppala, Sai P. Boddu, Edward B. Furr, Christopher R. McCurdy, Bonnie A. Avery, Chromatographia, 2011

A simple, sensitive and rapid ultra-performance liquid chromatography-mass spectrometry (UPLC-MS) method was developed and validated for the quantification of mitragynine in rat plasma using amitriptyline hydrochloride as an internal standard. Sample preparation involved a one-step liquid–liquid ...

more

Separation of polysorbates by liquid chromatography on a HILIC column and identification of peaks by MALDI-TOF MS

02-Apr-2011 | Shazia Abrar, Bernd Trathnigg, Analytical and Bioanalytical Chemistry, 2011

Polysorbates can be separated according to their functionality and architecture by liquid chromatography on a hydrophilic interaction chromatography (HILIC) column in acetone–water mobile phases containing 90–97% acetone. The different polymer homologous series are separated according to the ...

more

Chocolate HILIC phases: development and characterization of novel saccharide-based stationary phases by applying non-enzymatic browning (Maillard reaction) on amino-modified silica surfaces

16-Mar-2011 | Georg Schuster, Wolfgang Lindner, Analytical and Bioanalytical Chemistry, 2011

Novel saccharide-based stationary phases were developed by applying non-enzymatic browning (Maillard Reaction) on aminopropyl silica material. During this process, the reducing sugars glucose, lactose, maltose, and cellobiose served as “ligand primers”. The reaction cascade using cellobiose ...

more

HILIC-MS-MS for the Quantification of Pidotimod in Human Plasma

25-Feb-2011 | H. S. Chen, M. Shen, L. Y. Chen, Chromatographia, 2011

A method for fast, sensitive, and specific hydrophilic interaction chromatography combined with tandem mass spectrometry (HILIC-MS/MS) was developed for the first time to determine the level of pidotimod in human plasma. With rosiglitazone as internal standard, analysis was carried out on a HILIC ...

more

Determination of Mildronate in Human Plasma and Urine by UPLC–Positive Ion Electrospray Tandem Mass Spectrometry

19-Feb-2011 | Li-Jing Cai, Jun Zhang, Wen-Xing Peng, Rong-Hua Zhu, Jian Yang, Gang Cheng, Xiu-Mei Wang, Chromatographia, 2011

A simple, rapid, and selective method to determine the concentration of mildronate in human plasma and urine using ultra performance liquid chromatography–tandem mass spectrometry (UPLC-MS-MS) was developed and validated. The detection was performed on a triple-quadrupole tandem mass spectrometer ...

more

Microwave‐assisted extraction and determination of cyanuric acid residue in pet food samples by liquid chromatography–tandem mass spectrometry

01-Feb-2011 | Chao Han; Yongfang Zhou; Biqi Xia; Zhenou Zhu; Cuiping Liu; Yan Shen, Journal of Separation Science, 2011

Abstract Cyanuric acid (CYA) is attracting more attention due to its potential toxicity. In the present work, microwave‐assisted extraction method in combination with liquid chromatography–tandem mass spectrometry (LC‐MS/MS) was proposed for the determination of CYA in pet food samples. Among ...

more

Microwave-assisted extraction and determination of cyanuric acid residue in infant formula samples by liquid chromatography-tandem mass spectrometry

09-Jan-2011 | Chao, Han , Cuiping, Liu , Yongfang, Zhou , Biqi, Xia , Zhenou, Zhu , ..., Food Chemistry, 2011

In the present work, microwave-assisted extraction method in combining with liquid chromatography-tandem mass spectrometry (LC-MS/MS) was proposed for the determination of cyanuric acid (CYA) in infant formula samples. The separation was performed on a MERCK ZIC HILIC column (150mm×2.1mm i.d., 5 ...

more

Characterization of polyoxyethylenes according to the number of hydroxy end groups by hydrophilic interaction chromatography at critical conditions for polyethylene glycol

01-Dec-2010 | Shazia Abrar, Bernd Trathnigg, Analytical and Bioanalytical Chemistry, 2010

Polyoxyethylenes with different functionality and architecture can be separated according to the number of terminal hydroxy groups on polar stationary phases in acetone water mobile phases containing 90–97% acetone. The best results were obtained on a HILIC column. Typical samples, which can be ...

more

LC–MS–MS Determination of Sanguinarine and Chelerythrine Using a HILIC Column

03-Sep-2010 | Terenzio Bertuzzi, Barbara Agosti, Alessia Gualla, Amedeo Pietri, Chromatographia, 2010

A simple, rapid and sensitive LC–MS method utilizing electrospray mass spectrometry (ESI–MS–MS) has been developed to determine sanguinarine and chelerythrine in feed samples. Chromatographic separation was performed on a hydrophilic interaction liquid chromatography column using acetonitrile–25 ...

more

Page 2 From 3
Subscribe to e-mail updates relating to your search

You will receive via e-mail the latest search results matching your search criteria. This service is free of charge and can be cancelled at any time.

Your browser is not current. Microsoft Internet Explorer 6.0 does not support some functions on Chemie.DE