scholarly journals Investigation of interpolation techniques for the reconstruction of the first dimension of comprehensive two-dimensional liquid chromatography–diode array detector data

2011 ◽  
Vol 705 (1-2) ◽  
pp. 253-260 ◽  
Author(s):  
Robert C. Allen ◽  
Sarah C. Rutan
Keyword(s):  
Liquid Chromatography ◽  
Array Detector ◽  
Diode Array ◽  
Two Dimensional ◽  
Diode Array Detector ◽  
Interpolation Techniques

2D LC as a Tool for Standardization of Foenugraeci semen Extracts Containing Compounds with anti-Helicobacter pylori Activity

2021 ◽  
Author(s):  
Barbara Król-Kogus ◽  
Daniel Głód ◽  
Rafał Hałasa ◽  
Miroslawa Krauze-Baranowska ◽  
Loretta Pobłocka-Olech
Keyword(s):  
Helicobacter Pylori ◽  
Liquid Chromatography ◽  
Array Detector ◽  
Diode Array ◽  
Two Dimensional ◽  
Diode Array Detector ◽  
Chromatography Method ◽  
Fenugreek Seeds ◽  
On Line ◽  
Liquid Chromatography Method

The on-line heart-cutting two-dimensional liquid chromatography method with the use of diode array detector and mass spectrometer (LC-LC-DAD-ESI-MS) was established and validated for quantitation of C-glycosylflavones in fenugreek seeds (Foenugraeci...

Integrated chemical profiling of Zhi-Zi-Hou-Po decoction by liquid chromatography-diode array detector-time of flight mass analyzer and liquid chromatography-triple stage quadrupole mass analyzer combined with chemometrics

2016 ◽  
Vol 8 (23) ◽  
pp. 4689-4710 ◽  
Author(s):  
Yuan Liu ◽  
Gongjun Yang ◽  
Fang Feng
Keyword(s):  
Liquid Chromatography ◽  
Array Detector ◽  
Diode Array ◽  
Mass Analyzer ◽  
Effective Strategy ◽  
Quadrupole Mass ◽  
Diode Array Detector ◽  
Difference Analysis ◽  
Chemical Profiling ◽  
Tof Ms

An effective strategy using LC-DAD-TOF/MS and LC-MS/MS based chemometrics for identification and difference analysis of herb formulae is proposed.

Characterization via liquid chromatography coupled to diode array detector and tandem mass spectrometry of supercritical fluid antioxidant extracts ofSpirulina platensismicroalga

2005 ◽  
Vol 28 (9-10) ◽  
pp. 1031-1038 ◽  
Author(s):  
Jose A. Mendiola ◽  
Francisco R. Marín ◽  
S. Francisco Hernández ◽  
Bertha O. Arredondo ◽  
F. Javier Señoráns ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Tandem Mass Spectrometry ◽  
Supercritical Fluid ◽  
Array Detector ◽  
Diode Array ◽  
Tandem Mass ◽  
Diode Array Detector

scholarly journals Simultaneous Extraction Optimization and Analysis of Flavonoids from the Flowers of Tabernaemontana heyneana by High Performance Liquid Chromatography Coupled to Diode Array Detector and Electron Spray Ionization/Mass Spectrometry

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Thiyagarajan Sathishkumar ◽  
Ramakrishnan Baskar ◽  
Mohan Aravind ◽  
Suryanarayanan Tilak ◽  
Sri Deepthi ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Shake Flask ◽  
Orthogonal Design ◽  
Array Detector ◽  
Diode Array ◽  
Ionization Mass ◽  
Diode Array Detector

Flavonoids are exploited as antioxidants, antimicrobial, antithrombogenic, antiviral, and antihypercholesterolemic agents. Normally, conventional extraction techniques like soxhlet or shake flask methods provide low yield of flavonoids with structural loss, and thereby, these techniques may be considered as inefficient. In this regard, an attempt was made to optimize the flavonoid extraction using orthogonal design of experiment and subsequent structural elucidation by high-performance liquid chromatography-diode array detector-electron spray ionization/mass spectrometry (HPLC-DAD-ESI/MS) techniques. The shake flask method of flavonoid extraction was observed to provide a yield of 1.2±0.13 (mg/g tissue). With the two different solvents, namely, ethanol and ethyl acetate, tried for the extraction optimization of flavonoid, ethanol (80.1 mg/g tissue) has been proved better than ethyl acetate (20.5 mg/g tissue). The optimal conditions of the extraction of flavonoid were found to be 85°C, 3 hours with a material ratio of 1 : 20, 75% ethanol, and 1 cycle of extraction. About seven different phenolics like robinin, quercetin, rutin, sinapoyl-hexoside, dicaffeic acid, and two unknown compounds were identified for the first time in the flowers of T. heyneana. The study has also concluded that L16 orthogonal design of experiment is an effective method for the extraction of flavonoid than the shake flask method.

Sign in / Sign up

Export Citation Format

Share Document