Results 61 to 70 of about 86,759 (272)

Electrochemical Process for Diazinon Removal from Aqueous Media: Design of Experiments, Optimization, and DLLME-GC-FID Method for Diazinon Determination [PDF]

open access: yes, 2015
In the present study, electrochemical process was studied via removal of diazinon (O,O-diethyl O-2-isopropyl-6-methylpyrimidin-4-yl phosphorothioate) as an insecticide/ acaricide organic case study.
Daraei, H.   +4 more
core   +1 more source

Implementing Green Analytical Methodologies Using Solid-Phase Microextraction: A Review

open access: yesMolecules, 2020
Implementing green analytical methodologies has been one of the main objectives of the analytical chemistry community for the past two decades. Sample preparation and extraction procedures are two parts of analytical method development that can be best ...
Kayla M Billiard   +2 more
semanticscholar   +1 more source

Chemical Ionization Mass Spectrometry: Fundamental Principles, Diverse Applications, and the Latest Technological Frontiers

open access: yesMass Spectrometry Reviews, EarlyView.
ABSTRACT The review examines the evolution of chemical ionization mass spectrometry (CI‐MS), a technique developed in 1966 by Field and Munson. CI is a soft‐ionization method that produces more intense molecular ions with less fragmentation than electron ionization (EI).
Malvika Dutt   +4 more
wiley   +1 more source

Ultrasound-assisted emulsification solidified floating organic drop microextraction-GFAAS for determination of ultratrace aluminum: Response surface methodology and Box-Behnken Design [PDF]

open access: yesشیمی کاربردی روز, 2019
A simple, inexpensive and easy-to-use method of ultrasound-assisted emulsification of solidified floating organic drops microextraction (UAE-SFODME) coupled to GFAAS was developed for the extraction and preconcentration of aluminum.
Sara Kiamarspour, Fatemeh Abbasitabar
doaj   +1 more source

Characterization of craft beer through flavour component analysis by GC-MS and multivariate statistical tools [PDF]

open access: yes, 2018
Beer is a rather popular drink and represents the most widely consumed alcoholic beverage in the world.The present research aims at characterizing the flavour profile of lager pilsner, the category of low fermentation beers most common in Europe.
Boccacci Mariani Maurizio   +2 more
core  

Dereplicative Combination of HPLC/DAD/MS and 2D NMR to Identify Lichexanthone Isomers in Lichen Extracts

open access: yesPhytochemical Analysis, EarlyView.
ABSTRACT Introduction Lichexanthones are the major xanthones found in lichens. They present a high degree of isomerism, which makes their identification tedious. Xanthones are known to occur in lichens according to chemosyndromes, and these compounds act as chemotaxonomic markers.
Solenn Ferron   +5 more
wiley   +1 more source

Photocatalytic degradation and mineralization of diazinon in aqueous solution using nano-TiO2(Degussa, P25): kinetic and statistical analysis [PDF]

open access: yes, 2015
: In this study, photocatalytic degradation of diazinon was investigated using nano-TiO2, Degussa P25, as a photocatalyst and the effects of some operational parameters such as aeration, pH, photocatalyst concentration, and the irradiation time were also
Asgharnia, H.   +4 more
core  

Air Pollution in the Valparaiso Area [PDF]

open access: yes, 2020
Volatile Organic Compounds (VOC’s) and particulate matter (PM) have been serious air pollution concerns around the world, particularly where industries and high volume traffic is present. These pollutants have been shown to have a negative effect on most
Burns, Meghanne   +7 more
core   +1 more source

Determining the distribution of triclosan and methyl triclosan in estuarine settings [PDF]

open access: yes, 2014
We have developed a method for the analysis of two sewage-derived contaminants: triclosan (TCS), an antibacterial agent, and methyl triclosan (MTCS), a TCS metabolite.
Agüera   +44 more
core   +2 more sources

Progress in Surface‐Enhanced Raman Scattering‐Based Volatile Organic Compounds Detection: Materials, Application, and Prospects

open access: yesRare Metals, EarlyView.
ABSTRACT The detection of volatile organic compounds (VOCs) holds significant implications in environmental monitoring and disease diagnosis. Traditional gas detection technologies are constrained by complex operation and high cost, thereby failing to satisfy real‐time detection demands.
Yuening Wang   +11 more
wiley   +1 more source

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