Selective recognition of MnO4− ion in aqueous solution based on fluorescence enhancement by surfactant capped naphthalene nanoparticles: Application to ultratrace determination of KMnO4 in treated drinking water

2016 ◽  
Vol 329 ◽  
pp. 255-261 ◽  
Author(s):  
Sonali B. Suryawanshi ◽  
Prasad G. Mahajan ◽  
Dhanaji P. Bhopate ◽  
Govind B. Kolekar ◽  
Shivajirao R. Patil ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Drinking Water ◽  
Fluorescence Enhancement ◽  
Selective Recognition ◽  
Treated Drinking Water

A highly selective and sensitive fluorescent chemosensor for Hg2+ based on a pyridine-appended π-conjugated ligand

RSC Advances ◽  
2014 ◽  
Vol 4 (87) ◽  
pp. 47000-47004 ◽  
Author(s):  
Yaping Yang ◽  
Xin-Long Ni ◽  
Tao Sun ◽  
Hang Cong ◽  
Gang Wei
Keyword(s):  
Aqueous Solution ◽  
Organic Synthesis ◽  
Fluorescence Enhancement ◽  
Fluorescent Chemosensor ◽  
Selective Method ◽  
Pure Aqueous Solution

A sensitive and selective method for the determination of Hg2+ cations by fluorescence enhancement in pure aqueous solution was developed and obtained by simple organic synthesis.

scholarly journals FLUORESCENCE ENHANCEMENT OF Al3+– SODIUM MORIN–5–SULFONATE COMPLEX BY IMIDAZOLIUM IONIC LIQUID AND ITS APPLICATION IN DETERMINATION OF Al3+ IONS IN AN AQUEOUS SOLUTION

2019 ◽  
Vol 81 (2) ◽  
Author(s):  
Syaza Atikah Nizar ◽  
Nurul Syamimi Abdul Satar ◽  
Shaik Azri Shaik Amar ◽  
Fatin Hazirah Abdullah ◽  
Faizatul Shimal Mehamod ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Ionic Liquid ◽  
Acetic Acid ◽  
Ternary Complex ◽  
Fluorescence Enhancement ◽  
Calibration Graph ◽  
Fluorescence Signal ◽  
Binary Complex ◽  
Imidazolium Ionic Liquid

This study describes the preparation of sodium morin–5–sulfonate (NaMSA) as a new reagent for the determination of aluminium(III) (Al3+) ions based on the formation of a ternary complex. The complex consists of Al3+, NaMSA, and 1–Butyl–3–methylimidazolium hexafluorophosphate (BMIM–PF6). It was found that this method was sensitive compared to the binary complex of Al3+ and NaMSA. The ternary complex was excited at 420 nm, and the fluorescence signal was measured at 518 nm. Maximum fluorescence signal produced at pH 5.0 (acetic acid–acetate buffer), with 0.02% v/v BMIM–PF6 and 1.0 × 10-4 molL-1 of NaMSA. The calibration graph in linear up to 10 mgL-1 with the calculated detection limit of 0.017 mgL-1. Effect of foreign ions towards the ternary complex was also studied. Finally, the method was applied in the determination of Al3+ ions in water samples, and satisfactory results were obtained.

Pyrophosphate Selective Recognition in Aqueous Solution Based on Fluorescence Enhancement of a New Aluminium Complex

2011 ◽  
Vol 21 (4) ◽  
pp. 1509-1513 ◽  
Author(s):  
Morteza Hosseini ◽  
Mohammad Reza Ganjali ◽  
Mehdi Tavakoli ◽  
Parviz Norouzi ◽  
Farnoush Faridbod ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Fluorescence Enhancement ◽  
Selective Recognition

Selective recognition of oxalate in water: effect of pH on binding strength and sensing mechanisms

2017 ◽  
Vol 53 (82) ◽  
pp. 11345-11348 ◽  
Author(s):  
Ramana R. Mittapalli ◽  
Siva S. R. Namashivaya ◽  
Aleksandr S. Oshchepkov ◽  
Tatiana A. Shumilova ◽  
Tobias Rüffer ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Fluorescence Enhancement ◽  
Selective Recognition ◽  
Water Effect ◽  
Effect Of Ph ◽  
Binding Strength

New anthracene-containing azacryptands can selectively detect oxalate in a buffered aqueous solution at pH 6.2 showing a 10-fold fluorescence enhancement.

Colorimetric Determination of Fluoride in Drinking Groundwater using a Polymeric Zirconium Complex of 5-(2-Carboxyphenylazo)-8-Hydroxyquinoline

2013 ◽  
Vol 12 (7) ◽  
pp. 460-465
Author(s):  
Sameer Amereih ◽  
Zaher Barghouthi ◽  
Lamees Majjiad
Keyword(s):  
Drinking Water ◽  
Detection Limit ◽  
Complex Formation ◽  
Molar Absorptivity ◽  
Colorimetric Determination ◽  
Zirconium Complex ◽  
Reliable Determination ◽  
Percentage Recovery ◽  
Quantitation Limit

A sensitive colorimetric determination of fluoride in drinking water has been developed using a polymeric zirconium complex of 5-(2-Carboxyphenylazo)-8-Hydroxyquinoline as fluoride reagents. The method allowed a reliable determination of fluoride in range of (0.0-1.5) mg L-1. The molar absorptivity of the complex formation is 7695 ± 27 L mol-1 cm-1 at 460 nm. The sensitivity, detection limit, quantitation limit, and percentage recovery for 1.0 mg L-1 fluoride for the proposed method were found to be 0.353 ± 0.013 μg mL-1, 0.1 mg L-1, 0.3 mg L-1, and 101.7 ± 4.1, respectively.

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