A colorimetric chemosensor based on a Schiff base for highly selective sensing of cyanide in aqueous solution: the influence of solvents

2014 ◽  
Vol 38 (12) ◽  
pp. 5769-5776 ◽  
Author(s):  
Yu Jeong Na ◽  
Gyeong Jin Park ◽  
Hyun Yong Jo ◽  
Seul Ah Lee ◽  
Cheal Kim
Keyword(s):  
Aqueous Solution ◽  
Schiff Base ◽  
Color Change ◽  
Colorimetric Chemosensor ◽  
Influence Of Solvents

A new highly selective colorimetric chemosensor 1 shows exclusive response toward cyanide by a color change in aqueous solution.

A fluorescent colorimetric azo dye based chemosensor for detection of S2− in perfect aqueous solution and its application in real sample analysis and building a molecular logic gate

2018 ◽  
Vol 10 (20) ◽  
pp. 2317-2326 ◽  
Author(s):  
Amit Kumar Manna ◽  
Jahangir Mondal ◽  
Rukmani Chandra ◽  
Kalyani Rout ◽  
Goutam Kumar Patra
Keyword(s):  
Aqueous Solution ◽  
Schiff Base ◽  
Azo Dye ◽  
Color Change ◽  
Logic Gate ◽  
Real Sample ◽  
Sample Analysis ◽  
Real Sample Analysis ◽  
Molecular Logic Gate ◽  
Molecular Logic

A fluorescent-colorimetric azo dye based bis-Schiff base chemosensor, L, has been developed. L can selectively detect S2− through a color change from yellow to orange in perfect aqueous solution by deprotonation mechanism.

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 new Schiff-base chemosensor for selective detection of Cu2+ and Co2+ and its copper complex for colorimetric sensing of S2− in aqueous solution

2017 ◽  
Vol 16 (11) ◽  
pp. 1677-1689 ◽  
Author(s):  
Min Seon Kim ◽  
Seong Youl Lee ◽  
Jae Min Jung ◽  
Cheal Kim
Keyword(s):  
Aqueous Solution ◽  
Schiff Base ◽  
Copper Complex ◽  
Detection Limits ◽  
Selective Detection ◽  
Colorimetric Sensing ◽  
Colorimetric Chemosensor

A new Schiff-base colorimetric chemosensor 1 with low detection limits was developed for the detection of Cu2+, Co2+ and S2−.

Highly selective and sensitive colorimetric chemosensor for detection of Co2+ in a near-perfect aqueous solution

RSC Advances ◽  
2016 ◽  
Vol 6 (33) ◽  
pp. 28081-28088 ◽  
Author(s):  
Seong Youl Lee ◽  
Jae Jun Lee ◽  
Kwon Hee Bok ◽  
So Young Kim ◽  
Cheal Kim
Keyword(s):  
Aqueous Solution ◽  
Detection Limit ◽  
Color Change ◽  
Colorimetric Chemosensor

An outstanding colorimetric chemosensor was developed to selectively detect Co2+ with the lowest detection limit through the color change from colorless to yellow.

Exploitation of a simple Schiff base as a ratiometric and colorimetric chemosensor for glutamic acid

2015 ◽  
Vol 7 (19) ◽  
pp. 8146-8151 ◽  
Author(s):  
Anupam Ghorai ◽  
Jahangir Mondal ◽  
Rukmani Chandra ◽  
Goutam K. Patra
Keyword(s):  
Aqueous Solution ◽  
Amino Acids ◽  
Schiff Base ◽  
Detection Limit ◽  
Glutamic Acid ◽  
Visual Detection ◽  
Cost Effective ◽  
Fast Response ◽  
Colorimetric Chemosensor ◽  
Excellent Selectivity

A novel, simple and rapid method has been developed for visual detection ofl-glutamic acid (Glu) in aqueous solution. The chemosensor is easy to prepare and use and is cost effective. It exhibits an excellent selectivity and sensitivity towards Glu over other amino acids and provides a fast response time and low detection limit of about 7.96×10-7 M.

Schiff base equilibria. II. Beryllium complexes of N-n-butylsalicylideneimine and the hydrolysis of the Be2+ ion

1965 ◽  
Vol 18 (5) ◽  
pp. 651 ◽  
Author(s):  
RW Green ◽  
PW Alexander
Keyword(s):  
Aqueous Solution ◽  
Schiff Base ◽  
Complex Formation ◽  
Distribution Coefficient ◽  
Dilute Aqueous Solution ◽  
The Stability ◽  
Ph Range ◽  
Hydrolysis Of ◽  
Beryllium Complexes ◽  
Equilibria In Aqueous Solution

The Schiff base, N-n-butylsalicylideneimine, extracts more than 99.8% beryllium into toluene from dilute aqueous solution. The distribution of beryllium has been studied in the pH range 5-13 and is discussed in terms of the several complex equilibria in aqueous solution. The stability constants of the complexes formed between beryllium and the Schiff base are log β1 11.1 and log β2 20.4, and the distribution coefficient of the bis complex is 550. Over most of the pH range, hydrolysis of the Be2+ ion competes with complex formation and provides a means of measuring the hydrolysis constants. They are for the reactions: Be(H2O)42+ ↔ 2H+ + Be(H2O)2(OH)2, log*β2 - 13.65; Be(H2O)42+ ↔ 3H+ + Be(H2O)(OH)3-, log*β3 -24.11.

Visual detection of carbonate ions by inverse opal photonic crystal polymers in aqueous solution

2015 ◽  
Vol 3 (37) ◽  
pp. 9524-9527 ◽  
Author(s):  
Lu Li ◽  
Bin Zhao ◽  
Yue Long ◽  
Jin-Ming Gao ◽  
Guoqiang Yang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Photonic Crystal ◽  
Polymer Films ◽  
Visual Detection ◽  
Color Change ◽  
Ph Dependence ◽  
Inverse Opal ◽  
Carbonate Ions ◽  
Crystal Polymer

This communication demonstrates a facile method to detect CO32− by naked eyes through color change based on the pH dependence of inverse opal photonic crystal polymer films.

A colorimetric chemosensor for the sequential detection of copper ion and amino acids (cysteine and histidine) in aqueous solution

RSC Advances ◽  
2015 ◽  
Vol 5 (39) ◽  
pp. 31179-31188 ◽  
Author(s):  
Yong Sung Kim ◽  
Gyeong Jin Park ◽  
Seul Ah Lee ◽  
Cheal Kim
Keyword(s):  
Aqueous Solution ◽  
Amino Acids ◽  
Copper Ion ◽  
Sequential Detection ◽  
Colorimetric Chemosensor

A simple and selective colorimetric chemosensor was reported for the sequential detection of Cu2+, cysteine and histidine.

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