Results 271 to 280 of about 61,204 (302)

Colorimetric sensors

Newlove A. Afoakwah, Haroon Elrasheid Tahir, Gustav Komla Mahunu   +2 more
  +6 more sources

Colorimetric Sensor Array for Soft Drink Analysis

Journal of Agricultural and Food Chemistry, 2006
Fourteen commercial soft drinks have been analyzed using colorimetric sensor arrays made from a set of 25 chemically responsive dyes printed on a hydrophobic membrane. Digital imaging of the dye array before and after immersion provides a color change profile as a unique fingerprint for each specific analyte.
Chen, Zhang, Kenneth S, Suslick
openaire   +2 more sources

A bidentate borane as colorimetric fluoride ion sensor

Chem. Commun., 2004
The bright yellow bidentate diborane (3), obtained by reaction of 10-bromo-9-thia-10-boraanthracene (1) with dimesityl-1,8-naphthalenediylborate (2), serves as a colorimetric anion sensor and selectively complexes fluoride with an association constant greater than 5 × 109 M−1 in THF.
Stephané, Solé, François P, Gabbaï
openaire   +2 more sources

Dithiosquarylium-based colorimetric sensors for Hg2+

Fibers and Polymers, 2011
A new Hg2+-selective chemosensor based on dithiosquarylium (DTSQ) dye was investigated. Among various metal cations tested, exclusively Hg2+ ion responses to irreversible color change of DTSQ-1, along with the Hg2+-triggered desulfurization of dithiosquarylium into its oxygen analogue squarylium (SQ) dye.
Yu Wang, Seon-Yeong Gwon, Sung-Hoon Kim
openaire   +1 more source

Inkjet-printed paper-based colorimetric sensor coupled with smartphone for determination of mercury (Hg2+)

Journal of Hazardous Materials, 2021
Kamlesh Shrivas, Tushar Kant, Shamsh Pervez   +2 more
exaly  

Off-the-Shelf Colorimetric Anion Sensors

Angewandte Chemie International Edition, 2001
Hidekazu, Miyaji, Jonathan L, Sessler
openaire   +2 more sources

Pyrrole-Based Anion Sensors, Part I: Colorimetric Sensors

2010
This chapter focuses on chemo-sensing aspects of pyrrole and oligopyrrole-based colorimetric receptors for anions. Since pyrroles can play the role of a receptor as well as a signal transducer very efficiently and because of the focus on anion sensing, they can be organized following the modes of signal transduction such as colorimetry, fluorescence ...
openaire   +1 more source

An ultra-sensitive colorimetric sensor based on smartphone for pyrophosphate determination

Sensors and Actuators B: Chemical, 2021
Xuehua, Ai-guo Wu
exaly  

Colorimetric Sensor

Chemistry International, 2016
openaire   +1 more source

Colorimetric sensor array based on gold nanoparticles: Design principles and recent advances

TrAC - Trends in Analytical Chemistry, 2020
Yuexiang Lu, Yueying Liu
exaly