Results 71 to 80 of about 36,252 (237)

Fast and Sensitive Measurement of Off‐Flavors in Recirculating Aquaculture Systems

Rapid Communications in Mass Spectrometry, Volume 40, Issue 15, 15 August 2026.
ABSTRACT Rationale Geosmin and 2‐methylisoborneol (2‐MIB) are odor‐active compounds responsible for earthy off‐flavors in fish, creating significant quality concerns in recirculating aquaculture systems (RAS). Their extremely low odor thresholds make rapid and highly sensitive detection essential for maintaining product quality and consumer acceptance ...
Pedro Martínez Noguera, Sylvester Holt, Raju Podduturi, Wender L. P. Bredie, Jonathan D. Beauchamp, Mikael A. Petersen   +5 more
wiley   +1 more source

Copper, zinc and manganese determination in saline samples employing faas after separation and preconcentration on Amberlite XAD-7 and Dowex 1x-8 loaded with Alizarin Red S

Journal of the Brazilian Chemical Society, 2004
Two procedures have been proposed and compared for separation and preconcentration of trace amounts of manganese, copper, and zinc in saline samples. The procedures are based in the use of Amberlite XAD-7 and an anion-exchanger Dowex 1X8-50 loaded with ...
Korn Maria das Graças A., Santos Jr. Aníbal de Freitas, Jaeger Helena V., Silva Nívia Maria S., Costa Antônio C. Spínola   +4 more
doaj  

Gold nanoparticles electrodeposited on glassy carbon using cyclic voltammetry: Application to Hg(II) trace analysis [PDF]

, 2012
The electrochemical determination of Hg(II) at trace level using gold nanoparticles–modified glassy carbon (AuNPs–GC) electrodes is described. Starting from HAuCl4 in NaNO3, gold nanoparticles (AuNPs) were deposited onto Glassy Carbon (GC) electrodes ...
Abidi, Abollino, Abu-Shawish, Angerstein-Kozlowska, Bobrowski, Bonfil, Brainina, Colilla, Dai, Daniele, Eisler, Finot, Fukai, Gao, Garnier, Giacomino, Gong, Grujicic, Grzelczak, Gunawardena, Hung, Jagner, Jagner, Khustenko, Kinoshita, Komsiyska, Korbas, Laffont, Leopold, Ly, McKeown-Eyssen, Meyer, Miller, Mohanty, Morel, Muntyanu, Onyido, Ordeig, Oyama, O’Mullane, Pinilla, Salaun, Shamsipur, Sipos, Svarc-Gajic, Ugo, Ugo, Viltchinskaia, Wang, Wang, Wang, Welch, Welch, Wen, Wu, Wu, Yi, Yoo, Zhou   +58 more
core   +2 more sources

preconcentration

, 2014
Citation: 'preconcentration' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.P04803 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

Electronic Smoking Devices Among University Students: Usage Patterns and Chemical Composition of Inhaled Substances

Analytical Science Advances, Volume 7, Issue 1, June 2026.
ABSTRACT This study investigated the prevalence of electronic smoking device (ESD) use and its associated behavioural and chemical risks among university students in Bahia, Brazil. A cross‐sectional survey was conducted with 355 students from public and private institutions through an online questionnaire between April and May 2023. Among participants,
Eduard F. Valenzuela, Raffael Silva Santos Almeida, Ivana Ferreira Simões, Aline Gonçalves Miranda, Magno Oliveira Ramos, Roberto Rodrigues Bandeira Tosta Maciel, Fernanda Warken Rosa, Aníbal de Freitas Santos Júnior   +7 more
wiley   +1 more source

Cold vapour generation electrothermal atomic absorption spectrometry and solid phase extraction based on a new nanosorbent for sensitive HG determination in environmental samples (sea water and river water) [PDF]

, 2016
Reunión bianual del Grupo Regional Andaluz de la Sociedad Española de Química AnalíticaMercury is not an essential element for plant or animal life and it is a potential environmental toxic because of its tendency to form covalent bonds with organic ...
Cano-Pavón, José Manuel, García-de-Torres, Amparo, López-Guerrero, María del Mar, Siles-Cordero, Maria Teresa, Vereda-Alonso, Elisa Isabel   +4 more
core  

Photoelectrochemical ion concentration polarization : a microfluidic ion filtration system using light-driven electrochemical reactions [PDF]

, 2019
We report an ion separation or filtration method used in microchannel called photoelectrochemical ion concentration polarization (pICP). As a variant of faradaic ion concentration polarization (fICP), pICP utilizes TiO₂ photoelectrochemistry to form an ...
Yoon, Eunsoo
core   +1 more source

Extraction of Sulfachloropyridazine from Food Samples Using Cellulose: Application of Central Composite Design Approach

Analytical Science Advances, Volume 7, Issue 1, June 2026.
Functionalized cellulose–ATPE for sulfachloropyridazine extraction. ABSTRACT Sulfonamide antibiotics are among the most widely used veterinary drugs in livestock and often end up contaminating milk, which is subsequently consumed by humans. To mitigate this health hazard, cellulose and its functionalized derivatives were investigated for their ability ...
Mbuyelo Shikweni, Nikita Tawanda Tavengwa, Rabelani Mudzielwana, Dakalo Ndou, Tebogo Mokgehle   +4 more
wiley   +1 more source

Rare earth elements in Andaman Island surface water : geochemical tracers for the monsoon [PDF]

, 2012
The Asian summer monsoon affects the lives of billions of people. With the aim of identifying geochemical tracers for the monsoon related freshwater input from the major rivers draining into the Bay of Bengal and Andaman Sea we have taken surface ...
Frank, Martin, Hathorne, Ed, Mohan, P. M.   +2 more
core  

A sensitive spectrophotometric method for lead determination by flow injection analysis with on-line preconcentration [PDF]

, 2004
A new flow injection (FI) system for the determination of Pb(II) at trace level with a preconcentration step and spectrophotometric detection is proposed.
Di Nezio, Maria Susana, Fernández Band, Beatriz Susana, Palomeque, Miriam Edid   +2 more
core   +1 more source