Results 271 to 280 of about 28,173 (303)

A Highly Selective Colorimetric Aqueous Sensor for Mercury

Chemistry – A European Journal, 2008
Abstract A new colorimetric mercury sensor is reported based on binding to terpyridine derivatives. It is able to selectively detect Hg II ions over a number of environmentally relevant ions including Ca II , Pb II
Raja, Shunmugam, Gregory J, Gabriel, Cartney E, Smith, Khaled A, Aamer, Gregory N, Tew   +4 more
openaire   +2 more sources

Colorimetric sensors

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

A colorimetric sensor for the selective detection of fluoride ions

Luminescence, 2016
AbstractA colorimetric receptor L was prepared. Receptor L can selectively sense F− based on distinct color changes among a series of ions. It can selectively sense F− through an intramolecular hydrogen bond interaction. A Job plot indicated a 1:1 complexation stoichiometry between receptor L and F−.
Chin-Feng, Wan, Jiun-Ly, Chir, An-Tai, Wu   +2 more
openaire   +2 more sources

A novel colorimetric HSO4− sensor in aqueous media

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2012
A novel and sensitive anion receptor 3, bearing Schiff base structure, nitrophenyl azobenzol and carboxyl groups, was developed and characterized as a single chemosensor for the recognition of HSO(4)(-) anion. The different responses of UV-vis spectra and color changes of 3 could be applied to the recognition for HSO(4)(-) over other anions such as F(-)
Ping, Li, You-Ming, Zhang, Qi, Lin, Jun-Qiang, Li, Tai-Bao, Wei   +4 more
openaire   +2 more sources

Haussdorff and hellinger for colorimetric sensor array classification

2012 IEEE International Workshop on Machine Learning for Signal Processing, 2012
Development of sensors and systems for detection of chemical compounds is an important challenge with applications in areas such as anti-terrorism, demining, and environmental monitoring. A newly developed colorimetric sensor array is able to detect explosives and volatile organic compounds; however, each sensor reading consists of hundreds of pixel ...
Tommy S. Alstrøm, Bjørn Sand Jensen, Mikkel N. Schmidt, Natalie V. Kostesha, Jan Larsen   +4 more
openaire   +1 more source

Automated colorimetric analysis in paper based sensors

2014 IEEE International Conference on Image Processing (ICIP), 2014
Recent times have seen a wide ranging and large scale use of paper as a potential material in sensors for determining the concentration of an analyte upon appropriate end-point development. Today's clinical, food and environmental sectors require low-cost practical analytical devices which are portable and offer on-site real time detection.
Sanyam Garg, R. S. Ramprasaath, Suman Kapur, Kunda M. M. Rao   +3 more
openaire   +1 more source

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

Sensors and Actuators B: Chemical, 2021
Xuehua Ma, Yujie Zhang, Aiguo Wu
exaly  

Colorimetric Sensor

Chemistry International, 2016
openaire   +1 more source

Off-the-Shelf Colorimetric Anion Sensors

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

Progress in Paper-based Colorimetric Sensor Array

Chinese Journal of Analytical Chemistry, 2020
Liang Feng
exaly