Synthesis of 1,4-Dihydropyridine as a Fluorescent and Colorimetric Chemosensor for Detection of Fe3+ Ion

2019 ◽  
Vol 17 (10) ◽  
pp. 747-754
Author(s):  
Zohreh Kheil Kordi ◽  
Ghodsi Mohammadi Ziarani ◽  
Alireza Badiei ◽  
Negar Lashgari
Keyword(s):  
Ammonium Acetate ◽  
Detection Limits ◽  
Colorimetric Sensor ◽  
Colorimetric Chemosensor ◽  
Vis Spectroscopy

A new fluorescent and colorimetric sensor for Fe3+ ion were synthesized via four-component reaction of acetophenone, dimedone, benzaldehyde and ammonium acetate in the presence of SrFe12O19. The chemosensor shows excellent sensitivity toward Fe3+ ion. The sensing ability of the chemosensor was studied by fluorescent and UV-Vis spectroscopy. The detection limits for Fe3+ were calculated respectively about 8.3 × 10–6 M and 2.3 × 10–6 M for fluorescence and UV-Vis techniques.

Colorimetric chemosensor for multiple targets, Cu2+, CN−and S2−

RSC Advances ◽  
2016 ◽  
Vol 6 (20) ◽  
pp. 16586-16597 ◽  
Author(s):  
Ka Young Ryu ◽  
Jae Jun Lee ◽  
Jin Ah Kim ◽  
Dae Yul Park ◽  
Cheal Kim
Keyword(s):  
Schiff Base ◽  
Detection Limits ◽  
Colorimetric Sensor ◽  
Multiple Targets ◽  
Colorimetric Chemosensor ◽  
The Given

New Schiff-base was developed as colorimetric sensor for Cu2+, CN−and S2−with the detection limits lower than the given guidelines.

scholarly journals A Novel Quinoxaline-Rhodamine Conjugate for a Simple and Efficient Detection of Hydrogen Sulphate Ion

Compounds ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 29-40
Author(s):  
Sutapa Sahu ◽  
Yeasin Sikdar ◽  
Riya Bag ◽  
Dilip K. Maiti ◽  
José P. Cerón-Carrasco ◽  
...  
Keyword(s):  
Solid Phase ◽  
Detection Limits ◽  
Hydrogen Sulfate ◽  
Absorption And Emission ◽  
Conjugate System ◽  
Colorimetric Chemosensor ◽  
Simple Strategy ◽  
Efficient Detection ◽  
Hydrogen Sulphate

This work presents the development of a quinoxaline and rhodamine conjugate system that acts as a colorimetric chemosensor for hydrogen sulfate (HSO4−) ions in methanol media. This sensor has been characterized both theoretically and experimentally. The detection limits for HSO4− are small as 0.71 µM and 3.8 µM for the absorption and emission experiments, respectively. The effectiveness of the probe in recognizing HSO4− both in gel and solid phase is evaluated as well. Thus, this works presents a simple strategy to detect the environmental HSO4− pollutant event at tiny concentrations.

A polydiacetylene-based colorimetric chemosensor for malondialdehyde detection: a food spoilage indicator

2017 ◽  
Vol 5 (33) ◽  
pp. 8553-8558 ◽  
Author(s):  
Sangwan Kim ◽  
Sunjong Lee ◽  
Yejin Ahn ◽  
Hyun Ki Kim ◽  
Joonseok Koh ◽  
...  
Keyword(s):  
Colorimetric Sensor ◽  
Food Spoilage ◽  
Colorimetric Chemosensor

A polydiacetylene-based colorimetric sensor was devised to detect malondialdehyde as a food spoilage indicator.

Synthesis and Chiral Recognition Properties of a Novel Colorimetric Chiral Sensor for Carboxylic Anions

2008 ◽  
Vol 61 (4) ◽  
pp. 310 ◽  
Author(s):  
Zhi-Hong Chen ◽  
Yong-Bing He ◽  
Chen-Guang Hu ◽  
Xiao-Huan Huang ◽  
Ling Hu
Keyword(s):  
Mass Spectrometry ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Chiral Recognition ◽  
Colour Change ◽  
Colorimetric Sensor ◽  
Naked Eye ◽  
Vis Spectroscopy ◽  
Carboxylic Anions ◽  
Stoichiometric Complex

Chiral colorimetric sensor 4 has been synthesized, and the structure characterized by IR and 1H NMR spectroscopy, mass spectrometry, and elemental analysis. The chiral recognition of the receptor was studied by 1H NMR and UV-vis spectroscopy. The results of non-linear curve fitting indicate that the receptor 4 and l- or d-mandelate and alanine anions form a 1:1 stoichiometric complex. The obvious colour change of receptor 4 can be observed by the naked eye when the enantiomers of mandelate and alanine anions are added, which demonstrates that receptor 4 may be used as the colorimetric sensor for the two carboxylic anions.

Effect of Nitro Group on Imidazole Derivative as Colorimetric Chemosensor for Amines

2020 ◽  
Vol 840 ◽  
pp. 385-391
Author(s):  
Trisno Afandi ◽  
Bambang Purwono ◽  
Winarto Haryadi
Keyword(s):  
Detection Limit ◽  
Nitro Group ◽  
Ammonium Acetate ◽  
Color Change ◽  
Imidazole Derivative ◽  
Naked Eye ◽  
Colorimetric Chemosensor ◽  
Light Orange

Chemosensor of imidazole derivative (4-(4,5-diphenyl-1H-imidazol-2-yl)-2-methoxy-6-nitrophenol) (IMD-1) has been synthesized and tested for amines sensor. IMD-1 was synthesized from the reaction of 5-nitrovanillin, 1,2-diphenylethane-1,2-dione (benzil), and ammonium acetate using reflux method. IMD-1 showed fast respond and color change from light orange to orange in naked eye compared with the imidazole derivative without nitro group (IMD-0). The IMD-1 could detect butylamine quantitatively with detection limit of 1.03 x 10-4 M.

scholarly journals Rapid and selective detection of aluminum ion using 1,2,3-triazole-4,5-dicarboxylic acid-functionalized gold nanoparticle-based colorimetric sensor

RSC Advances ◽  
2021 ◽  
Vol 11 (49) ◽  
pp. 30635-30645
Author(s):  
Shengliang Zhao ◽  
Liqiong Chen ◽  
Feiyan Liu ◽  
Yongyao Fan ◽  
Yiheng Liu ◽  
...  
Keyword(s):  
Dicarboxylic Acid ◽  
Gold Nanoparticle ◽  
Colorimetric Sensor ◽  
Selective Detection ◽  
Aluminum Ion ◽  
Naked Eye ◽  
Vis Spectroscopy ◽  
Rapid Quantification

A colorimetric sensor based on TADA–AuNPs accompanied by a masking agent DPC was constructed, with which the rapid quantification of Al3+ can be realized by UV-vis spectroscopy or naked eye observation.

scholarly journals Application of synthesized copper nanoparticles using aqueous extract of Ziziphus mauritiana L. leaves as a colorimetric sensor for the detection of Ag+

2020 ◽  
Vol 44 (5) ◽  
pp. 1376-1385 ◽  
Author(s):  
Roomia MEMON ◽  
Ayaz Ali MEMON ◽  
Syed Tufail Hussain SHERAZI ◽  
Sirajuddin Sirajuddin ◽  
Aamna BALOUCH ◽  
...  
Keyword(s):  
Copper Nanoparticles ◽  
Limit Of Detection ◽  
Copper Chloride ◽  
Colorimetric Sensor ◽  
Ziziphus Mauritiana ◽  
Limit Of Quantification ◽  
Force Microscopy ◽  
Atomic Force ◽  
Vis Spectroscopy ◽  
Average Size

The presented work demonstrates the preparation of copper nanoparticles (CuNPs) via aqueous leaves extract of Ziziphus mauritiana L. (Zm) using hydrazine as a reducing agent. Various parameters such as volume of extract, concentration of hydrazine hydrate, concentration of copper chloride, and pH of the solution were optimized to obtain Ziziphus mauritiana L. leaves extract derived copper nanoparticles (Zm-CuNPs). Brownish red color was initial indication of the formation of Zm-CuNPs while it was confirmed by surface plasmon resonance (SPR) band at wavelength of 584 nm using ultraviolet-visible (UV-vis) spectroscopy. Synthesized Zm-CuNPs were characterized by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), atomic force microscopy (AFM), and X-ray diffractometry (XRD). AFM images showed that the particle size of Zm-CuNPs was from 7 to 17 nm with an average size of 11.3 nm. Fabricated sensor (Zm-CuNPs) were used as a colorimetric sensor for the detection of Ag+ at a linear range between 0.67 × 10–6 – 9.3 × 10–6 with R2 value of 0.992. For real water samples, limit of quantification (LOQ) and limit of detection (LOD) for Ag+ was found to be 330 × 10–9 and 100 × 10–9, respectively.

scholarly journals A Simple Visible Recognition Method for Copper Ions Using Dibenzo[b,j][1,10]Phenanthroline Scaffold as a Colorimetric Sensor

Chemosensors ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 7
Author(s):  
Muhammad Zulfajri ◽  
Ganesh Kumar Dhandabani ◽  
Hui-Fen Chen ◽  
Jeh-Jeng Wang ◽  
Genin Gary Huang
Keyword(s):  
Aqueous Solution ◽  
Optical Properties ◽  
Color Change ◽  
Copper Ions ◽  
Uv Light ◽  
Colorimetric Sensor ◽  
Great Sensitivity ◽  
Visible Range ◽  
Recognition Method ◽  
Vis Spectroscopy

A dibenzo[b,j][1,10]phenanthroline (DBPhen) scaffold as a novel colorimetric Cu2+ sensor was proposed and prepared in this study. The optical properties of DBPhen were measured utilizing UV light, UV-VIS spectroscopy, and fluorescence spectroscopy. The findings denote that DBPhen exhibited a particular selectivity and great sensitivity to Cu2+ compared with other metal ions. The addition of Cu2+ in the DBPhen solution induced the color change from yellow to purple, and a new peak in the visible range (~545 nm) was observed. The detection limit of Cu2+ in the aqueous solution was calculated to be as low as 0.14 μM. Besides, the color change of the DBPhen/Cu2+ complex could be reversibly restored by adding CN−. Therefore, DBPhen could have a prospective implementation as a practical colorimetric sensor to detect Cu2+ ions in environmental fields.

scholarly journals A novel dihydro phenylquinazolinone-based two-in-one colourimetric chemosensor for nickel(ii), copper(ii) and its copper complex for the fluorescent colourimetric nanomolar detection of the cyanide anion

RSC Advances ◽  
2020 ◽  
Vol 10 (73) ◽  
pp. 44860-44875
Author(s):  
Meman Sahu ◽  
Amit Kumar Manna ◽  
Shubhamoy Chowdhury ◽  
Goutam Kumar Patra
Keyword(s):  
Copper Complex ◽  
Colorimetric Sensor ◽  
Practical Application ◽  
Cyanide Anion ◽  
Colorimetric Chemosensor ◽  
Nanomolar Detection

A novel colorimetric chemosensor L has been developed for the detection of Ni2+ and Cu2+ ions. The obtained L–Cu2+ complex can be used as a new cascade fluorescent-colorimetric sensor for the nanomolar detection of CN− ions. This chemosensor has practical application.

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−.

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