Results 21 to 30 of about 2,158,364 (252)

Determination of cobalt in natural water samples after separation and preconcentration by dispersive liquid-liquid microextraction based on the solidification of floating organic drop [PDF]

شیمی کاربردی روز, 2012
A simple, rapid and environmentally friendly method has been developed for the determination of cobalt ions in water samples by dispersive liquid–liquid microextraction based on the solidification of floating organic droplet (DLLME-SFO) coupled with ...
Mohammad Reza Jamali, Salah Rahimpour, Reyhaneh Rahnama   +2 more
doaj   +1 more source

Water Sampling Module for Collecting and Concentrating Legionella pneumophila from Low-to-Medium Contaminated Environment

Biosensors, 2021
The detection of water contamination with Legionella pneumophila is of critical importance to manufacturers of water processing equipment and public health entities dealing with water networks and distribution systems.
Khalid Moumanis, Lilian Sirbu, Walid Mohamed Hassen, Eric Frost, Lydston Rodrigues de Carvalho, Pierre Hiernaux, Jan Jerzy Dubowski   +6 more
doaj   +1 more source

Chlortetracycline-Functionalized Silver Nanoparticles as a Colorimetric Probe for Aminoglycosides: Ultrasensitive Determination of Kanamycin and Streptomycin

Nanomaterials, 2020
Aminoglycosides (AMGs) have been extensively used to treat infectious diseases caused by Gram-negative bacteria in livestock and humans. A selective and sensitive colorimetric probe for the determination of streptomycin and kanamycin was proposed based ...
Ganesh Dattatraya Saratale, Rijuta Ganesh Saratale, Gajanan Ghodake, Surendra Shinde, Dae-Young Kim, Abdullah A. Alyousef, Mohammed Arshad, Asad Syed, Deepak Pant, Han-Seung Shin   +9 more
doaj   +1 more source

Determination of Polybrominated Diphenyl Ethers in Water Samples Using Effervescent-Assisted Dispersive Liquid-Liquid Icroextraction with Solidification of the Aqueous Phase

Molecules, 2021
An effective and sensitive method is necessary for the determination of polybrominated diphenyl ethers (PBDEs) pollutants in water. In this study, effervescent-assisted dispersive liquid-liquid microextraction with solidification of the aqueous phase (EA-
Yue Wang, Qicai Zhang, Shanshan Chen, Lin Cheng, Xu Jing, Xianli Wang, Shuhui Guan, Weiguo Song, Qinxiong Rao   +8 more
doaj   +1 more source

Development of an Electrochemical Sensor Based on Nanocomposite of Fe₃O₄@SiO₂ and Multiwalled Carbon Nanotubes for Determination of Tetracycline in Real Samples

Electrochem, 2021
In this work, an electrochemical sensor (GCE/MWCNT/Fe3O4@SiO2) based on a composite of multiwalled carbon nanotubes (MWCNT) and an Fe3O4@SiO2 (MMN) nanocomposite on a glassy carbon electrode (GCE) was developed for the detection of tetracycline (TC). The
Edna Ferreira Amaral, Daniela Nunes da Silva, Maria Cristina Silva, Arnaldo César Pereira   +3 more
doaj   +1 more source

Sustainable PVP-Capped Silver Nanoparticles as a Free-Standing Nanozyme Sensor for Visual and Spectrophotometric Detection of Hg²⁺ in Water Samples: A Green Analytical Method

Chemosensors, 2022
In the proposed method, microwave-assist heating and AgNO3/trisodium citrate were used to create the polyvinylpyrrolidone-capped silver nanoparticles (PVP-AgNPs) sensor.
Mohamed A. Abdel-Lateef, Albandary Almahri, Eman Alzahrani, Rami Adel Pashameah, Ahmed A. Abu-Hassan, Mohamed A. El Hamd   +5 more
doaj   +1 more source

Occurrence and Antimicrobial Resistance of Arcobacter spp. Recovered from Aquatic Environments

Antibiotics, 2021
Arcobacter spp. are emerging waterborne and foodborne zoonotic pathogens responsible for gastroenteritis in humans. In this work, we evaluated the occurrence and the antimicrobial resistance profile of Arcobacter isolates recovered from different aquatic
Sonia Sciortino, Pietro Arculeo, Vincenzina Alio, Cinzia Cardamone, Luisa Nicastro, Marco Arculeo, Rosa Alduina, Antonella Costa   +7 more
doaj   +1 more source

Plastic Collecting and Water Sampling Water Rover

, 2022
The electronics assembly and embedded system of a water rover are discussed in this paper. The goal of this project is to create a system that makes it easier to gather water samples and collect floating plastic debris using a micro-controller and sensors. Experimental research methodology was applied.
Sangharsh Arun Patil, Kedar Shankar Shelar, Sakshi Milind Pandit   +2 more
openaire   +1 more source

One-Pot Hydrothermal Synthesis of Carbon Dots as Fluorescent Probes for the Determination of Mercuric and Hypochlorite Ions

Nanomaterials, 2021
Nitrogen and sulfur codoped carbon dots (NSCDs) were synthesized via a one-pot hydrothermal method, and citric acid, ethylenediamine, and methyl blue were used as precursors. The obtained NSCDs were spherical with an average size of 1.86 nm.
Hsin Lee, Yen-Chang Su, Hsiang-Hao Tang, Yu-Sheng Lee, Jan-Yee Lee, Cho-Chun Hu, Tai-Chia Chiu   +6 more
doaj   +1 more source

Determination of Selected Pesticide Residues from Gilgel Gibe (I) Hydroelectric Dam Reservoir and Its Tributaries, Jimma Zone, Ethiopia [PDF]

International Journal of New Chemistry, 2020
In this study, the level of selected organophosphorus and organochlorine pesticide residues from water samples of Gilgle Gibe (I) hydroelectric dam reservoir and its potential tributaries, Jimma zone, Ethiopia, was determined by gas chromatography ...
Meaza Dejene, Kassim Kedir, Seblework mekonen, Abera Gure   +3 more
doaj   +1 more source