Results 51 to 60 of about 4,103,456 (328)
ASSESSMENT OF LINDANE (GAMMA HCH) RESIDUES IN WATER AND MILK SAMPLES IN PALAKKAD DISTRICT [PDF]
Organochlorine pesticides are ubiquitous and persistent organic pollutants used widely throughout the world. The organochlorines are more potent due to their prolonged persistence, lipophilic nature and tendency to accumulate in anima! and plant tissues.
V.R. Dhanya+4 more
doaj
The use of high performance anion exchange chromatography for the detection of counterfeit pharmaceutical products using the excipient content as a marker [PDF]
The aim of the investigation described here was to examine the differences between genuine and counterfeit pharmaceutical products through the development of an analytical method capable of rigorously identifying the sugar-based excipients.
Beasley, Emma+2 more
core +2 more sources
A coordination polymer [Pb(tadt)]n prepared by a microwave‐assisted solvothermal method selectively reduces CO2 into formate under visible light with a high apparent quantum yield of ≈25% at 400 nm. It can function as a pre‐catalyst, along with conductive Ketjen Black, to form an active PbCO3/Pb3(CO3)2(OH)2 mixture that exhibits a high Faradaic ...
Chomponoot Suppaso+8 more
wiley +1 more source
Safety operation of chromatography column system with discharging hydrogen radiolytically generated
In the extraction chromatography system, accumulation of hydrogen gas in the chromatography column is suspected to lead to fire or explosion. In order to prevent the hazardous accidents, it is necessary to evaluate behaviors of gas radiolytically ...
Watanabe Sou+4 more
doaj +1 more source
Detection of antibacterial activity of essential oil components by TLC-bioautography using luminescent bacteria [PDF]
The aim of the present study was the chemical characterization of some medically relevant essential oils (tea tree, clove, cinnamon bark, thyme and eucalyptus) and the investigation of antibacterial effect of the components of these oils by use of a ...
Adams R.P.+35 more
core +1 more source
Thermally Induced Gelling Systems Based on Patchy Polymeric Micelles
A novel strategy to design thermally induced gelling systems with tunable material properties is reported. Polymeric mixed‐shell micelles displaying multiple thermosensitive patchy domains formed hydrogels by assembling into well‐entangled worm‐like network structures upon heating to body temperature. The patchy micelle design significantly affects the
Binru Han+9 more
wiley +1 more source
In-situ, real time gas composition measurements for SOFC's using laser spectroscopy [PDF]
The use of standard gas composition measurement techniques, such as gas chromatography, in large scale solid oxide fuel cells (SOFC's) operating at high temperatures can be both complex and time consuming.
Cunningham, Robert+2 more
core
A stable cross‐linked ultra‐thin polymer coating for surface‐initiated ring‐opening polymerization (SI‐ROP) of hexamethylcyclotrisiloxane and ε‐caprolactone for growth of high grafting density poly(dimethyl siloxane) and poly(caprolactone) brushes is developed.
Miguel Betancourt‐Ponce+3 more
wiley +1 more source
This paper describes the use of a fully automated on-line reversed-phase liquid chromatography–gas chromatography (RPLC-GC) method for the determination of four organophosphorus pesticides (dimethoate, methidathion, chlorpyriphos and fenitrothion) in ...
R. Sánchez+4 more
semanticscholar +1 more source
Gas chromatography-olfactometry [PDF]
GC-olfactometry (GC-O) refers to the use of human assessors as a sensitive and selective detector for odour-active compounds. The aim of this technique is to determine the odour activity of volatile compounds in a sample extract, and assign a relative importance to each compound. Methods can be classified into three types: detection frequency, dilution
Jean-Pierre Dufour+2 more
openaire +3 more sources