Results 11 to 20 of about 3,044,011 (258)

Lab-In-Syringe with Bead Injection Coupled Online to High-Performance Liquid Chromatography as Versatile Tool for Determination of Nonsteroidal Anti-Inflammatory Drugs in Surface Waters

open access: yesMolecules, 2021
We report on the hyphenation of the modern flow techniques Lab-In-Syringe and Lab-On-Valve for automated sample preparation coupled online with high-performance liquid chromatography.
Celestine Vubangsi Gemuh   +2 more
doaj   +1 more source

Developing and testing a certified reference material of the lead mass fraction in solutions for measurements using inductively coupled plasma methods

open access: yesСтандартные образцы, 2020
For the metrological assurance of the high-precision inductively coupled plasma (ICP) mass spectrometry and optical emission spectroscopy methods, the All-Russian Scientific Research Institute for Optical and Physical Measurements (VNIIFTRI) has launched
A. A. Stakheev, T. P. Stolboushkina
doaj   +1 more source

Malachite Green Optical Sensor Based on Electrospun Polyimide Nanofiber

open access: yesChemosensors, 2022
Malachite green (MG) is a triphenylmethane cationic dye used in aquaculture practice, although it has been banned in several countries. The illegal use by fish producers, however, persists due to its effectiveness, and ready and cheap supply.
Fernando L. A. de Souza   +5 more
doaj   +1 more source

Investigation of the occurrence of pesticide residues in rural wells and surface water following application to tobacco</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>, 2007 </span><br><span class="r_content">In this work the exposure of wells and surface water to pesticides, commonly used for tobacco cropping, was assessed. Water consumption wells and surface water flows were sampled at different times.</span><br><span class="r_sub"><i>Edson C. Bortoluzzi<span id="ma_4" style="display:none">, Danilo S. Rheinheimer, Celso S. Gonçalves, João B. R. Pellegrini, Aline M. Maroneze, Márcia H. S. Kurz, Nádia M. Bacar, Renato Zanella</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_4')">+7 more</a></small></i></span><br><small><a href="https://doaj.org/article/0f5779d94077400fb943846cc42abd82" target="_blank" rel="nofollow" title="doaj.org/article/0f5779d94077400fb943846cc42abd82">doaj</a> </small>   <div id="more_4" style="display:none"><a href="/sci_redir.php?doi=10.1590%2FS0100-40422007000800014" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.1590/S0100-40422007000800014'); alert('Copied the doi');">copy doi</a> <small>(10.1590/S0100-40422007000800014)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_4')">+1 more source</a></small><br></div><div class="r"><p class="r_title"><a href="https://doi.org/10.3390/nano12091441" target="_blank" rel="nofollow">Iron-Doped Bimodal Mesoporous Silica Nanomaterials as Sorbents for Solid-Phase Extraction of Perfluoroalkyl Substances in Environmental Water Samples</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Nanomaterials</i>, 2022 </span><br><span class="r_content">In this work, sorbets based on UVM-7 mesoporous silica doped with Fe were synthesized and applied to solid-phase extraction of perfluoroalkyl substances from environmental water samples.</span><br><span class="r_sub"><i>Enric Pellicer-Castell<span id="ma_5" style="display:none">, Carolina Belenguer-Sapiña, Jamal El Haskouri, Pedro Amorós, José Manuel Herrero-Martínez, Adela R. Mauri-Aucejo</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_5')">+5 more</a></small></i></span><br><small><a href="https://doaj.org/article/8dc7d732806a484b87df3506977f8e5f" target="_blank" rel="nofollow" title="doaj.org/article/8dc7d732806a484b87df3506977f8e5f">doaj</a> </small>   <div id="more_5" style="display:none"><a href="/sci_redir.php?doi=10.3390%2Fnano12091441" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.3390/nano12091441'); alert('Copied the doi');">copy doi</a> <small>(10.3390/nano12091441)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_5')">+1 more source</a></small><br></div><div class="r"><p class="r_title"><a href="https://doi.org/10.3390/s21227571" target="_blank" rel="nofollow">Paper-Based Analytical Devices for Colorimetric and Luminescent Detection of Mercury in Waters: An Overview</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Sensors</i>, 2021 </span><br><span class="r_content">Lab-on-paper technologies, also known as paper-based analytical devices (PADs), have received increasing attention in the last years, and nowadays, their use has spread to virtually every application area, i.e., medical diagnostic, food safety ...</span><br><span class="r_sub"><i>Carlos Bendicho<span id="ma_6" style="display:none">, Isela Lavilla, Francisco Pena-Pereira, Inmaculada de la Calle, Vanesa Romero</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_6')">+4 more</a></small></i></span><br><small><a href="https://doaj.org/article/85a27bf4bce0470299818edcbf18f081" target="_blank" rel="nofollow" title="doaj.org/article/85a27bf4bce0470299818edcbf18f081">doaj</a> </small>   <div id="more_6" style="display:none"><a href="/sci_redir.php?doi=10.3390%2Fs21227571" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.3390/s21227571'); alert('Copied the doi');">copy doi</a> <small>(10.3390/s21227571)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_6')">+1 more source</a></small><br></div><div class="r"><p class="r_title"><a href="https://doi.org/10.4136/ambi-agua.2450" target="_blank" rel="nofollow">Hazard assessment and categorization of microbiological risk in a water treatment and distribution system located in a municipality in the interior of Minas Gerais, Brazil</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Revista Ambiente & Água</i>, 2020 </span><br><span class="r_content">Consumption of non-potable water is a relevant public health problem due to the possibility of transporting numerous chemical and microbiological contaminants.</span><br><span class="r_sub"><i>Marcelo Barbosa Motta, Elisabeth Neumann</i></span><br><small><a href="https://doaj.org/article/de6bbe5b6eb0453b9f67cff2a605b96f" target="_blank" rel="nofollow" title="doaj.org/article/de6bbe5b6eb0453b9f67cff2a605b96f">doaj</a> </small>   <div id="more_7" style="display:none"><a href="/sci_redir.php?doi=10.4136%2Fambi-agua.2450" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.4136/ambi-agua.2450'); alert('Copied the doi');">copy doi</a> <small>(10.4136/ambi-agua.2450)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_7')">+1 more source</a></small><br></div><div class="r"><p class="r_title"><a href="https://doi.org/10.1051/e3sconf/202132901052" target="_blank" rel="nofollow">Characteristics Analysis and Corrosion Inhibition in Typical Produced Water of Jidong Oilfield</a> <b><a href="https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/105/e3sconf_gesd2021_01052.pdf" target="_blank" rel="nofollow">[PDF]</a></b> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>E3S Web of Conferences</i>, 2021 </span><br><span class="r_content">The composition of oilfield water is complex and diverse. The development and application of corrosion inhibitors can effectively inhibit the corrosion of pipelines and equipment by oilfield water.</span><br><span class="r_sub"><i>Dong Chen</i></span><br><small><a href="https://doaj.org/article/49ab5d2303824cb092774260ca7bd3dc" target="_blank" rel="nofollow" title="doaj.org/article/49ab5d2303824cb092774260ca7bd3dc">doaj</a> </small>   <div id="more_8" style="display:none"><a href="/sci_redir.php?doi=10.1051%2Fe3sconf%2F202132901052" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.1051/e3sconf/202132901052'); alert('Copied the doi');">copy doi</a> <small>(10.1051/e3sconf/202132901052)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_8')">+1 more source</a></small><br></div><div class="r"><p class="r_title"><a href="https://doi.org/10.4136/ambi-agua.2270" target="_blank" rel="nofollow">Quality of the water fluoridation and municipal-level indicators in a Brazilian metropolitan region</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Revista Ambiente & Água</i>, 2018 </span><br><span class="r_content">This study explored the relationship between water fluoridation quality and development indicators at municipal level. In addition, fluoride concentrations found were classified based on two criteria for interpreting the samples.</span><br><span class="r_sub"><i>Lorrayne Belotti<span id="ma_9" style="display:none">, Paulo Frazão, Carolina Dutra Degli Esposti, Jaime Aparecido Cury, Edson Theodoro dos Santos Neto, Karina Tonini dos Santos Pacheco</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/2da02899a639460d90827d9950f9a63c" target="_blank" rel="nofollow" title="doaj.org/article/2da02899a639460d90827d9950f9a63c">doaj</a> </small>   <div id="more_9" style="display:none"><a href="/sci_redir.php?doi=10.4136%2Fambi-agua.2270" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.4136/ambi-agua.2270'); alert('Copied the doi');">copy doi</a> <small>(10.4136/ambi-agua.2270)</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/10.1002/gch2.202000099" target="_blank" rel="nofollow">A Simple Method for Developing a Hand‐Drawn Paper‐Based Sensor for Mercury; Using Green Synthesized Silver Nanoparticles and Smartphone as a Hand‐Held‐Device for Colorimetric Assay</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Global Challenges</i>, 2021 </span><br><span class="r_content">Mercury ions are highly toxic at trace levels, and its pollution has posed a significant threat to the environment and public health, where current detection methods mainly require laborious operation and expensive instrumentation. Herein, a simple, cost‐</span><br><span class="r_sub"><i>Maryamosadat Mavaei<span id="ma_10" style="display:none">, Azam Chahardoli, Ali Fattahi, Alireza Khoshroo</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/722a3a898b984087aebae8e5a31e618d" target="_blank" rel="nofollow" title="doaj.org/article/722a3a898b984087aebae8e5a31e618d">doaj</a> </small>   <div id="more_10" style="display:none"><a href="/sci_redir.php?doi=10.1002%2Fgch2.202000099" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.1002/gch2.202000099'); alert('Copied the doi');">copy doi</a> <small>(10.1002/gch2.202000099)</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-mercury/" class="suggestion"onclick="show_loader();"><b>mercury</b></a><br/></div></div></div><div class="pagenav"><a href="/q-water_analysis/" rel="nofollow"><b>previous</b></a>   <a href="/q-water_analysis/" rel="nofollow">1</a>  <b>2</b>  <a href="/q-water_analysis/p-3/" rel="nofollow">3</a>  <a href="/q-water_analysis/p-4/" rel="nofollow">4</a>  <a href="/q-water_analysis/p-5/" rel="nofollow">5</a>   <a href="/q-water_analysis/p-3/" 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>