Preparation and Characterization of Sol-Gel SE-30-Coated Silica Stationary Phase for Capillary Liquid Chromatography

2005 ◽  
Vol 62 (9-10) ◽  
pp. 483-491 ◽  
Author(s):  
Xue Gu ◽  
Yan Wang ◽  
Xiangmin Zhang
Keyword(s):  
Liquid Chromatography ◽  
Stationary Phase ◽  
Sol Gel ◽  
Capillary Liquid Chromatography ◽  
Capillary Liquid

Immobilized vancomycin as chiral stationary phase in packed capillary liquid chromatography

Chirality ◽  
1998 ◽  
Vol 10 (3) ◽  
pp. 273-280 ◽  
Author(s):  
Lars A. Svensson ◽  
Karl-Erik Karlsson ◽  
Anders Karlsson ◽  
J�rgen Vessman
Keyword(s):  
Liquid Chromatography ◽  
Stationary Phase ◽  
Chiral Stationary Phase ◽  
Capillary Liquid Chromatography ◽  
Capillary Liquid

Preparation and characterization of long methacrylate monolithic column for capillary liquid chromatography

2004 ◽  
Vol 1052 (1-2) ◽  
pp. 205-209 ◽  
Author(s):  
Xin Shu ◽  
Lingxin Chen ◽  
Bingcheng Yang ◽  
Yafeng Guan
Keyword(s):  
Liquid Chromatography ◽  
Monolithic Column ◽  
Capillary Liquid Chromatography ◽  
Capillary Liquid

scholarly journals Quantitative Analysis of Terpenic Compounds in Microsamples of Resins by Capillary Liquid Chromatography

Molecules ◽  
2019 ◽  
Vol 24 (22) ◽  
pp. 4068
Author(s):  
H. D. Ponce-Rodríguez ◽  
R. Herráez-Hernández ◽  
J. Verdú-Andrés ◽  
P. Campíns-Falcó
Keyword(s):  
Liquid Chromatography ◽  
Quantitative Analysis ◽  
Chemical Characterization ◽  
Capillary Liquid Chromatography ◽  
Sample Treatment ◽  
Model Compounds ◽  
Relative Standard ◽  
Concentration Interval ◽  
Capillary Liquid

A method has been developed for the separation and quantification of terpenic compounds typically used as markers in the chemical characterization of resins based on capillary liquid chromatography coupled to UV detection. The sample treatment, separation and detection conditions have been optimized in order to analyze compounds of different polarities and volatilities in a single chromatographic run. The monoterpene limonene and the triterpenes lupeol, lupenone, β-amyrin, and α-amyrin have been selected as model compounds. The proposed method provides linear responses and precision (expressed as relative standard deviations) of 0.6% to 17%, within the 0.5–10.0 µg mL−1 concentration interval; the limits of detection (LODs) and quantification (LOQs) were 0.1–0.25 µg mL−1 and 0.4–0.8 µg mL−1, respectively. The method has been applied to the quantification of the target compounds in microsamples. The reliability of the proposed conditions has been tested by analyzing three resins, white copal, copal in tears, and ocote tree resin. Percentages of the triterpenes in the range 0.010% to 0.16% were measured using sample amounts of 10–15 mg, whereas the most abundant compound limonene (≥0.93%) could be determined using 1 mg portions of the resins. The proposed method can be considered complementary to existing protocols aimed at establishing the chemical fingerprint of these kinds of samples.

Glycol Diglycidyl Ether and γ-Aminobutyric Acid Functionalized Silica as a Mixed Mode Stationary Phase for Capillary Liquid Chromatography

2019 ◽  
Vol 82 (3) ◽  
pp. 661-669
Author(s):  
Shuangli Zhao ◽  
Feifei Luo ◽  
Yan Zhang ◽  
Yi Zhang ◽  
Pingang He ◽  
...  
Keyword(s):  
Liquid Chromatography ◽  
Stationary Phase ◽  
Mixed Mode ◽  
Diglycidyl Ether ◽  
Capillary Liquid Chromatography ◽  
Aminobutyric Acid ◽  
Functionalized Silica ◽  
Capillary Liquid

Preparation and Evaluation of Monolithic Silica Capillary Column for Reversed-Phase Capillary Liquid Chromatography

2012 ◽  
Vol 485 ◽  
pp. 136-139
Author(s):  
Ya Shun Chen ◽  
Li Jia ◽  
Wei Liu ◽  
Zhong Zhou Yi ◽  
Fang Fang He
Keyword(s):  
Liquid Chromatography ◽  
Sol Gel ◽  
Capillary Columns ◽  
Reversed Phase ◽  
Capillary Liquid Chromatography ◽  
Fused Silica ◽  
Monolithic Silica ◽  
Fused Silica Capillary ◽  
Capillary Liquid ◽  
Silica Capillary

Octadecyl-functionalized monolithic silica capillary columns with inner diameters of 100 and 200 micrometers for reversed-phase capillary liquid chromatography were prepared in the fused-silica capillary via sol-gel process. Their performance was evaluated and compared by the separation of alkylbenzenes (toluene, ethylbenzene, propylbenzene, butylbenzene). The column back pressure and linear velocity of mobile phase were investigated. The results show that the monolithic silica capillary columns exhibit good performance for the separation of alkylbenzenes.

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