Results 201 to 210 of about 17,983 (249)

A colorimetric sensor array for the discrimination of glucosinolates

Food Chemistry, 2020
A novel approach for the discrimination of different glucosinolates (sinigrin, progoitrin, gluconapin, 4-methoxyglucobrassicin, glucoraphanin, glucobrassicin, glucoiberin, glucobrassicanapin, glucoraphenin, and glucoerucin) using a colorimetric sensor array (CSA) is reported herein.
Su-Yeon Kim, Hye-Young Seo, Ji-Hyoung Ha
openaire   +2 more sources

Colorimetric Polymethacrylate Sensor

Advanced Materials Research, 2014
The paper describes a new colorimetric sensor. The colorimetric sensors were made of optically transparent polymethacrylate matrix with physically immobilized analytical reagent which is responsible for the extraction of the analyte into the sensing material and changing its color.
Nataliya A. Gavrilenko, Nadezda V. Saranchina, Aleksey V. Sukhanov, Mikhail A. Gavrilenko, Elena V. Zenkova   +4 more
openaire   +1 more source

A Colorimetric Sensor Array for Organics in Water

Journal of the American Chemical Society, 2005
Molecular recognition of organic compounds in aqueous solutions is inherently challenging due to the potential interference from the very high concentration of water. Here we present a simple colorimetric sensor array that probes a wide range of chemical properties.
Chen, Zhang, Kenneth S, Suslick
openaire   +2 more sources

Diagnosis of rhinosinusitis with a colorimetric sensor array

Journal of Breath Research, 2008
A variety of electronic nose technologies are currently commercially available or under evaluation at research institutions. Sensors include conducting polymers, polymer composites, acoustic wave, metal oxide and optical fiber arrays. Reactive, metalloporphyrin dyes have also been used as colorimetric sensor arrays (CSAs).
Erica R, Thaler, Daniel D, Lee, C William, Hanson   +2 more
openaire   +2 more sources

Colorimetric Sensors Measurement

2015
Despite some successes with electronic nose systems as described in Chap. 4, the limited range of sensor analyte interactions limits both their sensitivity for detection of compounds at low concentrations relative to their vapor pressures and their selectivity for discrimination between compounds; the latter proves especially problematic in ...
Xiaobo Zou, Jiewen Zhao
openaire   +1 more source

Colorimetric Sensor for ATP in Aqueous Solution

Organic Letters, 2007
A new chromogenic complex 1.Zn has been synthesized, and its interactions with different biologically important phosphates have been investigated in aqueous solution (pH approximately 7.2). A visual color change can be detected on binding of ATP to 1.Zn, whereas no such change is observed when other biologically related anions (AMP, ADP, PPi, or ...
D Amilan, Jose, Sandhya, Mishra, Amrita, Ghosh, Anupama, Shrivastav, Sanjiv K, Mishra, Amitava, Das   +5 more
openaire   +2 more sources

Visible Colorimetric Fluoride Ion Sensors

Organic Letters, 2005
[structure: see text] Five new urea derivative naphthalene compounds were synthesized by a reaction of 1,8-diaminonaphthalene and the corresponding isocyanates and showed a distinct color change only when treated with fluoride ions.
Eun Jin, Cho, Byung Ju, Ryu, Young Ju, Lee, Kye Chun, Nam   +3 more
openaire   +2 more sources

A colorimetric sensor array for odour visualization

Nature, 2000
Array-based vapour-sensing devices are used to detect and differentiate between chemically diverse analytes. These systems--based on cross-responsive sensor elements--aim to mimic the mammalian olfactory system by producing composite responses unique to each odorant.
N A, Rakow, K S, Suslick
openaire   +2 more sources

Novel colorimetric sensor for oral malodour

Analytica Chimica Acta, 2010
Volatile sulphur compounds are the primary constituents of oral malodour. Quantitative tools for the detection of oral malodour are beneficial to evaluate the intensity of malodour, analyse its causes and monitor the effectiveness of customized treatments.
Nethaji, Alagirisamy, Sarita S, Hardas, Sujatha, Jayaraman   +2 more
openaire   +2 more sources

Nanomolar colorimetric hypochlorite sensor in water

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2019
Hypochlorous acid is present in several biological systems and plays a pivotal role in bioprocesses. The acid also finds application in industrial and synthetic spheres. The ecological toxicity of elevated hypochlorite concentrations in aqueous media has been thoroughly documented.
Sanay, Naha, A, Varalakshmi, Sivan, Velmathi   +2 more
openaire   +2 more sources