Potential-Resolved Electrogenerated Chemiluminescence for the Selective Detection of Multiple Luminophores

ChemPlusChem ◽  
2015 ◽  
Vol 80 (3) ◽  
pp. 456-470 ◽  
Author(s):  
Egan H. Doeven ◽  
Gregory J. Barbante ◽  
Conor F. Hogan ◽  
Paul S. Francis
Keyword(s):  
Electrogenerated Chemiluminescence ◽  
Selective Detection

scholarly journals Frontispiece: Potential-Resolved Electrogenerated Chemiluminescence for the Selective Detection of Multiple Luminophores

ChemPlusChem ◽  
2015 ◽  
Vol 80 (3) ◽  
pp. n/a-n/a
Author(s):  
Egan H. Doeven ◽  
Gregory J. Barbante ◽  
Conor F. Hogan ◽  
Paul S. Francis
Keyword(s):  
Electrogenerated Chemiluminescence ◽  
Selective Detection

Selective detection of glutathione based on the recovered fluorescence of BSA‐AuNCs/Cu 2+ system

2019 ◽  
Vol 14 (9) ◽  
pp. 952-956
Author(s):  
Yining Zhu ◽  
Wang Li ◽  
Cheng Ju ◽  
Xiang Gong ◽  
Wenhao Song ◽  
...  
Keyword(s):  
Selective Detection

Development of Ultrasensitive and Arsenic (III) Selective Upconverting (NaYF4: Yb3+, Er3+) Platform

2020 ◽  
Author(s):  
Suman Duhan ◽  
Kedar Sahoo ◽  
Sudhir Kumar Singh ◽  
Manoj Kumar
Keyword(s):  
Heavy Ions ◽  
Leaf Extract ◽  
Moringa Oleifera ◽  
Solid Phase ◽  
Selective Detection ◽  
Arsenic Pollution ◽  
Apparent Effect ◽  
Safe Limit ◽  
Interfering Ions ◽  
Resonance Transfer

The development of a sensitive alpha-NaYF4:Yb3+, Er3+ solid-phase upconverting platform (UCP) has been realized using Moringa oleifera leaf extract for selective detection of arsenic (As III) contamination in drinking water. The presence of polyphenols in the leaves extract is shown to induce luminescence resonance transfer (LRET), diminishing thereby the Er3+ upconverting red and green emissions activated by 980 nm excitation. However, addition of As3+ species interrupts the LRET process and restores emission proportionately. This feature allows platform to selectively detect arsenic pollution in water below the safe limit of 10 ppt. The uniqueness of UCP lies in monitoring the As3+ contamination in samples containing heavy ions (Cd2+, Hg2+) as well, without apparent effect on the signal reproducibility. UCP is also found to be insensitive to other interfering ions like Pb2+, H2PO4-, F-, Cl-, Ca2+, Mg2+, Sn2+, Cr6+, Fe2+ and Co2+, if present.<br><br>

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