Results 1 to 10 of about 501,190 (293)

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

Assessment of Global DNA Methylation in Stem Cells with Reverse-Phase High Performance Liquid Chromatography

open access: yesSiriraj Medical Journal, 2020
Objective: We tested the possibility of the use of reverse-phase high performance liquid chromatography (RP-HPLC), a sensitive, simple and cost effective technique, for evaluation of global DNA methylation alteration in stem cells.
Tatsanee Phermthai   +6 more
doaj  

Comparative study of experimental and computational procedures for the calculation of molecular lipophilicity

open access: yesSaúde & Tecnologia, 2015
Background – The lipophilicity is one of the physicochemical properties that most influences the ability of a molecule to move through biological compartments.
Gonçalo Clemente
doaj   +1 more source

Comparison of MALDI-TOF-MS and RP-HPLC as Rapid Screening Methods for Wheat Lines With Altered Gliadin Compositions

open access: yesFrontiers in Plant Science, 2020
The wheat gliadins are a complex group of flour proteins that can trigger celiac disease and serious food allergies. As a result, mutation breeding and biotechnology approaches are being used to develop new wheat lines with reduced immunogenic potential.
You-Ran Jang   +10 more
doaj   +1 more source

RP-HPLC Method for the Determination and Quantification of Artesunate

open access: yesJournal of Chromatographic Science, 2020
Abstract A simple, rapid and cost-effective reverse phase high-performance liquid chromatographic (RP-HPLC) method was developed for the quantification of artesunate. C18 Promosil (ODS, 150 × 4.6 mm, 5 μm) column was used as stationary phase to separate the drug.
Muhammad Asad Saeed   +3 more
openaire   +2 more sources

Concept of ecologically acceptable chromatographic methods: Case study on the separation of dronedarone hydrochloride and its degradation products [PDF]

open access: yesArhiv za farmaciju
Recently, concern about the environmental impact of drug analysis methods has increased significantly. Reversed-phase high-performance liquid chromatography (RP-HPLC), the predominant technique in drug analysis, relies heavily on organic solvents such as
Đajić Nevena   +6 more
doaj   +1 more source

RP-HPLC Analysis and Antidiabetic Activity of

open access: yesNatural Product Communications, 2010
1,2,6,8-Tetrahydroxyxanthone (SR1) and 2,8-dihydroxy-1,6-dimethoxyxanthone (SR2) have been qualitatively and quantitatively determined in leaves and rhizomes of Swertia paniculata. The methanol extracts were analyzed on a C 18 column using MeOH and H 2 O
Jagmohan S. Negi   +3 more
doaj   +1 more source

Reverse Phase High-performance Liquid Chromatography: A Comprehensive Review of Principles, Instrumentation, Analytical Procedures, and Pharmaceutical Applications

open access: yesJournal of Preventive, Diagnostic and Treatment Strategies in Medicine
A popular analytical method in the domains of material sciences, pharmacology, biology, the environment, food, cosmetics, and forensics is reverse phase high-performance liquid chromatography (RP-HPLC). Both polar and nonpolar molecules may be separated,
Suman Basak, Piyali Das
doaj   +1 more source

Quantitation of genistein and genistin in soy dry extracts by UV-Visible spectrophotometric method</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Química Nova</i>, 2008 </span><br><span class="r_content">This paper describes the development and validation of an UV-Visible spectrophotometric method for quantitation of genistein and genistin in soy dry extracts, after reaction with aluminum chloride.</span><br><span class="r_sub"><i>Isabela da Costa César<span id="ma_9" style="display:none">, Fernão Castro Braga, Cristina Duarte Vianna-Soares, Elzíria de Aguiar Nunan, Gérson Antônio Pianetti, Ligia Maria Moreira-Campos</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_9')">+5 more</a></small></i></span><br><small><a href="https://doaj.org/article/9d01b5a6019342148acca54515f159a4" target="_blank" rel="nofollow" title="doaj.org/article/9d01b5a6019342148acca54515f159a4">doaj</a> </small>   <div id="more_9" style="display:none"><a href="/sci_redir.php?doi=10.1590%2FS0100-40422008000800003" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.1590/S0100-40422008000800003'); alert('Copied the doi');">copy doi</a> <small>(10.1590/S0100-40422008000800003)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_9')">+1 more source</a></small><br></div><div class="r"><p class="r_title"><a href="https://doi.org/10.1038/s41598-025-93331-8" target="_blank" rel="nofollow">Quality by design based ecofriendly HPLC analytical method for simultaneous quantification of erastin and lenalidomide in mesoporous silica nanoparticles</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Scientific Reports</i></span><br><span class="r_content">The aims of this work to optimize and validate a RP-HPLC method to quantify erastin (ERT) and lenalidomide (LND) in mesoporous silica nanoparticles (MSNs). The Design of Experiments (DoE) strategy optimized the RP-HPLC method.</span><br><span class="r_sub"><i>Ashutosh Gupta<span id="ma_10" style="display:none">, S. P. Rachana, Sudheer Moorkoth, Namdev Dhas</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_10')">+3 more</a></small></i></span><br><small><a href="https://doaj.org/article/219f0d3df11b4909a23c35bf69235b25" target="_blank" rel="nofollow" title="doaj.org/article/219f0d3df11b4909a23c35bf69235b25">doaj</a> </small>   <div id="more_10" style="display:none"><a href="/sci_redir.php?doi=10.1038%2Fs41598-025-93331-8" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.1038/s41598-025-93331-8'); alert('Copied the doi');">copy doi</a> <small>(10.1038/s41598-025-93331-8)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_10')">+1 more source</a></small><br></div><div class="r"><div style="margin-bottom:2px;overflow:hidden"><div style="display: inline-block; float: left; font-size: small; padding-right: 16px; margin-top: -1px; padding-bottom: 1px;"><a href="/q-chromatography%2C_high_pressure_liquid/" class="suggestion"onclick="show_loader();"><b>chromatography, high pressure liquid</b></a><br/><a href="/q-3._good_health/" class="suggestion"onclick="show_loader();"><b>3. good health</b></a><br/><a href="/q-chemistry/" class="suggestion"onclick="show_loader();"><b>chemistry</b></a><br/></div><div style="display: inline-block; float: left; font-size: small; padding-right: 16px; margin-top: -1px; padding-bottom: 1px;"><a href="/q-hplc/" class="suggestion"onclick="show_loader();"><b>hplc</b></a><br/><a href="/q-reproducibility_of_results/" class="suggestion"onclick="show_loader();"><b>reproducibility of results</b></a><br/><a href="/q-quality_control/" class="suggestion"onclick="show_loader();"><b>quality control</b></a><br/></div><div style="display: inline-block; float: left; font-size: small; padding-right: 16px; margin-top: -1px; padding-bottom: 1px;"><a href="/q-short_communications/" class="suggestion"onclick="show_loader();"><b>short communications</b></a><br/><a href="/q-chromatography%2C_reverse-phase/" class="suggestion"onclick="show_loader();"><b>chromatography, reverse-phase</b></a><br/><a href="/q-box-behnken_design/" class="suggestion"onclick="show_loader();"><b>box-behnken design</b></a><br/></div></div></div><div class="pagenav"><b>1</b>  <a href="/q-rp-hplc/p-2/" rel="nofollow">2</a>  <a href="/q-rp-hplc/p-3/" rel="nofollow">3</a>  <a href="/q-rp-hplc/p-4/" rel="nofollow">4</a>  <a href="/q-rp-hplc/p-5/" rel="nofollow">5</a>   <a href="/q-rp-hplc/p-2/" id="next" rel="nofollow"><b>next</b></a> </div><br></div> </div> <script>document.getElementById('loadingGif').style.display='none';</script><div style="width: 100%; height: 40px; bottom: 0px; background-color: #f5f5f5;"><div style="padding-left: 15px; padding-top: 10px"> <a href="/" rel="nofollow">Home</a> - <a href="/page-about/" rel="nofollow">About</a> - <a href="/page-disclaimer/" rel="nofollow">Disclaimer</a> - <a href="/page-privacy/" rel="nofollow">Privacy</a> </div></div> <link rel="stylesheet" href="//ajax.googleapis.com/ajax/libs/jqueryui/1.11.4/themes/smoothness/jquery-ui.min.css"/> <script> (function(ss,ex){ window.ldfdr=window.ldfdr||function(){(ldfdr._q=ldfdr._q||[]).push([].slice.call(arguments));}; (function(d,s){ fs=d.getElementsByTagName(s)[0]; function ce(src){ var cs=d.createElement(s); cs.src=src; cs.async=1; fs.parentNode.insertBefore(cs,fs); }; ce('https://sc.lfeeder.com/lftracker_v1_'+ss+(ex?'_'+ex:'')+'.js'); })(document,'script'); })('JMvZ8gvrWA9a2pOd'); </script> </body> </html>