Fluorescence-based sensor for Pb(II) using tetra-(3-bromo-4-hydroxyphenyl)porphyrin in liquid and immobilized medium

Add time:08/02/2019    Source:sciencedirect.com

A new optical sensor for sensing of Pb2+ in immobilized medium (PVC film) and ethanol medium was developed by using 5,10,15,20-tetra-(3-bromo-4-hydroxyphenyl)porphyrin (TBHPP) synthesized. The sensor-based TBHPP showed a linear response towards Pb2+ in concentration range from 5 × 10−6 to 4 × 10−4 mol L−1 in PVC film and 5 × 10−6 to 3 × 10−4 mol L−1 in ethanol medium, with a working pH 7. The detection limit was 2 × 10−8 and 4 × 10−8 mol L−1 for Pb2+ in PVC film and ethanol medium respectively. The response time of Pb2+ was found as 4 min for PVC film and 2 min for ethanol medium. The sensor developed in two different mediums was used for lead determination in standard soil sample with satisfactory results.

We also recommend Trading Suppliers and Manufacturers of diethyl 4-(4-hydroxyphenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate (cas 10354-30-0). Pls Click Website Link as below: cas 10354-30-0 suppliers

Prev:Synthesis of 4-(3,5-dialkyl-4-hydroxyphenyl)pyridines.
Next:Simple and condensed β-lactams. Part 29. Synthesis and base-catalyzed ring transformation of 4-[(2RS,3SR)-3-hydroxy-1-(4-methoxyphenyl)-4-oxoazetidin-2-yl)]thiazol-2(3H)-one)