Cinnamaldehyde‐Based Chemosensor for Colorimetric Detection of Cu 2+ and Hg 2+ in a Near‐Perfect Aqueous Solution

2019 ◽  
Vol 4 (9) ◽  
pp. 2795-2801 ◽  
Author(s):  
Hanna Cho ◽  
Ju Byeong Chae ◽  
Cheal Kim
Keyword(s):  
Aqueous Solution ◽  
Colorimetric Detection

Cationic polymers and aptamers mediated aggregation of gold nanoparticles for the colorimetric detection of arsenic(iii) in aqueous solution

2012 ◽  
Vol 48 (37) ◽  
pp. 4459 ◽  
Author(s):  
Yuangen Wu ◽  
Shenshan Zhan ◽  
Faze Wang ◽  
Lan He ◽  
Wenting Zhi ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Gold Nanoparticles ◽  
Colorimetric Detection ◽  
Cationic Polymers

Ultra-facile and rapid colorimetric detection of Cu2+ with branched polyethylenimine in 100% aqueous solution

The Analyst ◽  
2018 ◽  
Vol 143 (2) ◽  
pp. 409-414 ◽  
Author(s):  
Hong Shao ◽  
Yadan Ding ◽  
Xia Hong ◽  
Yichun Liu
Keyword(s):  
Aqueous Solution ◽  
Colorimetric Detection ◽  
Colorimetric Method ◽  
Branched Polyethylenimine

An ultra-facile and rapid colorimetric method was explored to detect Cu2+ in 100% aqueous solution by using only BPEI.

Colorimetric detection of histidine in aqueous solution by Ni2+ complex of a thiazolylazo dye based on indicator displacement mechanism

2018 ◽  
Vol 59 (45) ◽  
pp. 3988-3993 ◽  
Author(s):  
Tatsuya Nagae ◽  
Shunichi Aikawa ◽  
Koshiro Inoue ◽  
Yasumasa Fukushima
Keyword(s):  
Aqueous Solution ◽  
Colorimetric Detection ◽  
Displacement Mechanism

scholarly journals A reversible, colorimetric, pH-responsive indole-based hydrogel and its application in urea detection

RSC Advances ◽  
2019 ◽  
Vol 9 (42) ◽  
pp. 24299-24304
Author(s):  
Yan Wang ◽  
Xuan Luo ◽  
Longfei Zhang ◽  
Shuai Zhang ◽  
Lin Zhang
Keyword(s):  
Aqueous Solution ◽  
Colorimetric Detection ◽  
Sol Gel ◽  
Ph Responsive ◽  
Gel Method ◽  
Sol Gel Method ◽  
New Type

A new type of pH-responsive indole-based (4-HINF) hydrogel, fabricated by a sol–gel method, was utilized as a platform for colorimetric detection of urea in aqueous solution.

Colorimetric Detection of Trace Arsenic(III) in Aqueous Solution Using Arsenic Aptamer and Gold Nanoparticles

2014 ◽  
Vol 67 (5) ◽  
pp. 813 ◽  
Author(s):  
Minglei Yu
Keyword(s):  
Aqueous Solution ◽  
Gold Nanoparticles ◽  
Detection Limit ◽  
Colorimetric Assay ◽  
Colorimetric Detection ◽  
Colour Change ◽  
Colorimetric Sensing ◽  
Detection Range ◽  
Colorimetric Indicator ◽  
Blue Solution

In this study, trace arsenic(iii) (AsIII) in aqueous solution was detected by applying a classical aptamer-based gold nanoparticles colorimetric sensing strategy. An arsenic aptamer was used as a sensing probe and gold nanoparticles as a colorimetric indicator. In the absence of AsIII, the gold nanoparticles were stabilised by the arsenic aptamer and remained dispersed at high NaCl concentrations, displaying a red solution. Contrarily, in the presence of AsIII, the gold nanoparticles were prone to aggregation, owing to the formation of aptamer–AsIII complex between the arsenic aptamer and AsIII, and thus exhibited a blue solution. By monitoring the colour change, a simple and fast colorimetric assay for AsIII was established with a detection range of 1.26–200 ppb and a detection limit of 1.26 ppb. Because this colorimetric assay only involves common reagents and can be assessed visually, it holds great potential for arsenic(iii) monitoring in environment-related and other applications.

A reversible fluorescent-colorimetric chemosensor based on a novel Schiff base for visual detection of CO32− in aqueous solution

RSC Advances ◽  
2016 ◽  
Vol 6 (76) ◽  
pp. 72185-72192 ◽  
Author(s):  
Anupam Ghorai ◽  
Jahangir Mondal ◽  
Rukmani Chandra ◽  
Goutam K. Patra
Keyword(s):  
Aqueous Solution ◽  
Schiff Base ◽  
Visual Detection ◽  
Colorimetric Detection ◽  
Aqueous Media ◽  
Rapid Response ◽  
Colorimetric Chemosensor ◽  
Excellent Selectivity

A novel Schiff base receptor L has been fabricated for fluorescent-colorimetric detection of CO32− in aqueous media. L shows an excellent selectivity, rapid response and reversibility and its sensitivity for CO32− is the lowest ever found (96 nM).

A novel cationic iridium(iii) complex with a thiorhodamine-based auxiliary ligand: application for luminescent and colorimetric detection of Hg2+in an aqueous solution

2017 ◽  
Vol 41 (16) ◽  
pp. 8312-8319 ◽  
Author(s):  
Zeyu Chen ◽  
Guoyun Meng ◽  
Huaijun Tang ◽  
Yanchun Ye ◽  
Riyong Sun ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Colorimetric Detection ◽  
Detection Limits ◽  
Auxiliary Ligand ◽  
Luminescence Detection

Detecting Hg2+in an aqueous solution with detection limits of 16 ppb by luminescence detection and 80 ppb by absorption detection.

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