Results 11 to 20 of about 97,740 (305)

NMR, RP-HPLC-PDA-ESI-MSn, and RP-HPLC-FD Characterization of Green and Oolong Teas (Camellia sinensis L.) [PDF]

open access: yesMolecules, 2021
Untargeted (NMR) and targeted (RP-HPLC-PDA-ESI-MSn, RP-HPLC-FD) analytical methodologies were used to determine the bioactive components of 19 tea samples, characterized by different production processes (common tea and GABA tea), degrees of fermentation (green and oolong teas), and harvesting season (autumn and spring). The combination of NMR data and
Anatoly P. Sobolev   +6 more
openaire   +7 more sources

Development and validation of an rp-hplc method for simultaneous determination of Ramipril and Amlodipine in tablets

open access: yesJournal of Pharmaceutical Analysis, 2013
An rp-hplc method for the simultaneous determination of Ramipril (RP) and Amlodipine (AL) in tablets was developed and validated by Chinese Pharmacopoeia 2010. The linearity of the proposed method was investigated in the range of 0.01–0.25 mg/mL (r2=0.
Shi-Ying Dai   +3 more
doaj   +1 more source

Determination of the lipophilicity of 2'-hydroxychalcones by RP HPLC method [PDF]

open access: yesHemijska Industrija, 2016
Lipophilicity of twelve synthesized chalcones, whose ring B is a ortho, meta or para monosubstituted with alkyl, oxyalkyl groups or halogens was determined by reverse phase liquid chromatography, using octadecyl-functionalized (RP-18) silica gel
Bašić Jasmina V.   +4 more
doaj   +1 more source

ANALYSIS OF INSECTICIDE GELS CONTAINING FIPRONIL BY RP HPLC

open access: yesТонкие химические технологии, 2018
The article considers fipronil determination by the method of RP HPLC in isocratic mode with ultraviolet detection at 280 nm. The analysis of insecticidal gels containing fipronil and fipronil mixture with chlorpyriphos was carried out.
L. A. Nosikova, A. N. Kochetov
doaj   +1 more source

Characterization of celiac disease related oat proteins: bases for the development of high quality oat varieties suitable for celiac patients [PDF]

open access: yes, 2017
Some studies have suggested that the immunogenicity of oats depends on the cultivar. RP-HPLC has been proposed as a useful technique to select varieties of oats with reduced immunogenicity.
Barro, Francisco   +4 more
core   +1 more source

Phosphorylated calix[4,8]arenes improve the RP HPLC separation of benzene derivatives

open access: yesЖурнал органічної та фармацевтичної хімії, 2020
Aim. To study the effect of 5,11,17,23-tetrakis(diisopropoxyphosphonyl)-25,26,27,28-tetrapropoxycalix[4]arene and oсtаkis(diethoxyphosphoryloxy)-tert-butylcalix[8]аrene additives to the MeCN – H2O mobile phase (86:14) on the selectivity of the separation
Olga I. Kalchenko   +2 more
doaj   +1 more source

Validirane RP-RP-HPLC i TLC metode za simultano određivanje tamsulozin hidroklorida i finasterida u istom dozirnom pripravku [PDF]

open access: yes, 2010
Reversed phase high-performance liquid chromatography (RP-HPLC) and thin-layer chromatography (TLC) methods have been developed and validated for simultaneous estimation of tamsulosin hydrochloride and finasteride in bulk drug and in combined dosage ...
A. Sangita   +13 more
core   +2 more sources

Benefits and Limitations of Lab-on-a-Chip Method over Reversed-Phase High-Performance Liquid Chromatography Method in Gluten Proteins Evaluation

open access: yesJournal of Chemistry, 2015
RP-HPLC (reversed-phase high-performance liquid chromatography) is widely used to determine the amounts of the different gluten protein types. However, this method is time-consuming, especially at early stages of wheat breeding, when large number of ...
Dragan Živančev   +6 more
doaj   +1 more source

Stability of Extemporaneously Prepared Rufinamide Oral Suspensions [PDF]

open access: yes, 2010
Background: Rufinamide is an oral antiepileptic drug indicated for adjunctive therapy in treating generalized seizures associated with Lennox-Gastaut syndrome. Currently, rufinanide is available as 200-mg and 400-mg tablets. A liquid dosage form does not
Best, Robert   +3 more
core   +2 more sources

Structural identification of oxidized acyl-phosphatidylcholines that induce platelet activation [PDF]

open access: yes, 2005
Oxidation of low-density lipoprotein (LDL) generates proinflammatory and prothrombotic mediators that may play a crucial role in cardiovascular and inflammatory diseases.
Berliner JA   +23 more
core   +1 more source

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