A colorimetric chemosensor for the sequential recognition of Mercury (II) and iodide in aqueous media

Lee, Seong Youl; Lee, Jae Jun; Bok, Kwon Hee; Kim, Jin Ah; So, Young Kim; Kim, Cheal

doi:10.1016/j.inoche.2016.06.004

Cited by 25 publications

(5 citation statements)

References 24 publications

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“…The detection limit for Hg 2+ was calculated as 7.89 μM. The calculated detection limit is higher than that recommended by WHO; however, it is comparable with the reported values in literature (Lee et al, 2016;Hong et al, 2016).…”

Section: (1): 376-383 2021supporting

confidence: 80%

“…Hg 2+ generally has a coordination number of four. Nitrogen atom on SAR involved in two of them while chloride (HgCl2 used in the experiments) occupied other two (Lee et al, 2016). After the metal/sensor ratio was determined, the binding constant was found using a previously reported method (Aydin and Keles 2020b), using absorption values at 528 nm, and it was calculated as 1.56 х 10 12 M -2 .…”

Section: (1): 376-383 2021mentioning

confidence: 99%

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Sulu Çözeltilerde Hg2+ Tespiti için Sinnamaldehit Türevi Bir Kolorimetrik Sensör

Aydin

2021

Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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Ağır metal iyonları insan gıda zincirine girdiklerinde insanın merkezi sinir sistemine, karaciğerine, böbreğine, kemiğine ve dişlerine ciddi zararlar vermektedir. Bu nedenle, toksik metal iyonlarının basit, hızlı, hassas ve düşük maliyetli tanımlanması için yeni tekniklerin geliştirilmesi halk sağlığının iyileştirilmesi için gereklidir. Ağır metal iyonlarının kolorimetik sensörler yardımıyla çıplak gözle algılanması, her insan tarafından uygulanabilirliği nedeniyle önem taşımaktadır. Bu çalışmada, kolay uygulama potansiyeli olan 3-methyl-4-((3phenylallylidene)amino)phenol (SAR) bileşiğinin sensör özelliği incelenmiştir. Sensörün yapısı, 1 H NMR, 13 C NMR ve kütle spektrometresi ile doğrulanmıştır. Uygulamalarda, ilk olarak sensörün rengi metal iyonlarıyla / metal iyonları olmadan karşılaştırılmış, daha sonra ölçümler UV-Vis spektrofotometresinde yapılmıştır. UV-Vis spektroskopik çalışmaları, SAR'ın MeOH (metanol) / H2O (su) (v/ v 1: 1) içerisinde Hg 2+ iyonlarına yüksek seçicilik ve duyarlılığı gösterdiğini ortaya koymuştur. Sensör, sarıdan pembeye renk değiştirerek Hg 2+ iyonlarını algılamıştır. SAR ve Hg 2+ arasındaki kompleks stokiyometrisi, Job yöntemi ve 528 nm'de UV-Vis titrasyon değerleri kullanılarak hesaplanmış ve 2:1 olarak bulunmuştur. Bağlanma sabiti 1.56 × 10 12 M-2 olarak bulunmuştur. Ayrıca, sensör ve Hg 2+ arasındaki bağlanma tersinirdir. Tespit sınırı da belirlenmiş ve 7.89 × 10-6 M olarak hesaplanmıştır.

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Section: (1): 376-383 2021supporting

confidence: 80%

Section: (1): 376-383 2021mentioning

confidence: 99%

Sulu Çözeltilerde Hg2+ Tespiti için Sinnamaldehit Türevi Bir Kolorimetrik Sensör

Aydin

2021

Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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“…). The K a value is in the range of those ( K a = 4.9 × 10 2 –6.1 × 10) previously reported for colorimetric chemosensors toward Hg 2+ …”

Section: Resultssupporting

confidence: 57%

“…). By calculating from the gradient ( k = 3.36 × 10, R 2 = 0.995) and σ = 1.63 × 10 −3 , the detection limit was found to be 1.46 μmol L −1 (equal to 0.292 mg kg −1 ), which is comparable to those (0.11–4.6 μmol L −1 ) of other colorimetric chemosensors for Hg 2+ (Table ) and lower than the maximum allowable level of Hg 2+ for food and animal feed regulated by the US Food and Drug Administration (1 mg kg −1 ) . As shown in Fig.…”

Section: Resultsmentioning

confidence: 70%

Colorimetric detection of Hg²⁺ using a mixture of an anionic azo dye and a cationic polyelectrolyte in aqueous solution

Inoue

Aikawa

Fukushima

2018

Polymer International

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We investigated a colorimetric chemosensor for Hg2+ based on a mixture of xylidyl blue I as an anionic organic dye and poly(diallyldimethylammonium chloride) as a cationic polyelectrolyte in an aqueous solution at pH 7.5. The addition of Hg2+ to the mixture induced a bathochromic shift in the absorption spectra with a distinct color change from red to green which was readily identifiable by the naked eye, whereas the other metal ions gave rise to insignificant color changes. By contrast, upon adding Hg2+ to xylidyl blue I alone, the solution underwent no significant change in color. Moreover, a stoichiometric ratio for the complex between xylidyl blue I and Hg2+ in the presence of poly(diallyldimethylammonium chloride) was determined to be 1:1 by the absorption titration curve and Job's plot. Thus, the mixture can be used as a selective naked‐eye colorimetric chemosensor for Hg2+ over other common metal ions. This study raises the possibility that the combination of an organic dye and an oppositely charged polyelectrolyte is a potential candidate for the easy construction of a new chemosensor system. © 2018 Society of Chemical Industry

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“…Therefore, it becomes highly demanding to have efficient, easy-to-use chemical sensors for real-time mercury detection in environmental analyses and industrial wastewater treatments. Various colorimetric [19][20][21] and fluorimetric sensors [22,23] have been designed to detect the presence of the hazardous element for its elimination from the environment. Schiff'sbases, [24] benzothiazoles, [25] thiosemicarbazide, [26] lawsone, [27] anthraquinone [28] moiety and others [29] were used to develop efficient mercury sensors in solution.…”

Section: Introductionmentioning

confidence: 99%

Reactions of 2,3-Dibromonaphthalene-1,4-Dione and Pyridyl Amines: X-ray Structures, DFT Investigations, and Selective Detection of the Hg2+ and Ni2+ Ions

Aggrwal¹,

Salunke‐Gawali²,

Gejji³

et al. 2021

Eng. Sci.

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In this work, the products formed by the reaction between 2,3-dibromonaphthalene-1,4-dione with (pyridine-2-yl)methanamine and (pyridine-4-yl)methanamine are discussed in detial.The products 2-amino-3-bromonaphthalene-1,4-dione (A) and 2-aminonaphthalene-1,4-dione (B(1)) obtained are characterized through 1 H and 13 C-NMR, FTIR, mass spectrometry, single-crystal X-ray diffraction experiments, which are in conjunction with wB97X based density functional theory. compound A can effectively and selectively detect Hg 2+ and Ni 2+ ions, and proposes a potential mechanism of action.

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A colorimetric chemosensor for the sequential recognition of Mercury (II) and iodide in aqueous media

Cited by 25 publications

References 24 publications

Sulu Çözeltilerde Hg2+ Tespiti için Sinnamaldehit Türevi Bir Kolorimetrik Sensör

Sulu Çözeltilerde Hg2+ Tespiti için Sinnamaldehit Türevi Bir Kolorimetrik Sensör

Colorimetric detection of Hg²⁺ using a mixture of an anionic azo dye and a cationic polyelectrolyte in aqueous solution

Reactions of 2,3-Dibromonaphthalene-1,4-Dione and Pyridyl Amines: X-ray Structures, DFT Investigations, and Selective Detection of the Hg2+ and Ni2+ Ions

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A colorimetric chemosensor for the sequential recognition of Mercury (II) and iodide in aqueous media

Cited by 25 publications

References 24 publications

Sulu Çözeltilerde Hg2+ Tespiti için Sinnamaldehit Türevi Bir Kolorimetrik Sensör

Sulu Çözeltilerde Hg2+ Tespiti için Sinnamaldehit Türevi Bir Kolorimetrik Sensör

Colorimetric detection of Hg2+ using a mixture of an anionic azo dye and a cationic polyelectrolyte in aqueous solution

Reactions of 2,3-Dibromonaphthalene-1,4-Dione and Pyridyl Amines: X-ray Structures, DFT Investigations, and Selective Detection of the Hg2+ and Ni2+ Ions

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Colorimetric detection of Hg²⁺ using a mixture of an anionic azo dye and a cationic polyelectrolyte in aqueous solution