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A versatile stable cobalt optical sensor based on pyrogallol red immobilization on cellulose acetate film

Authors: Ali A Ensafi, A Aboutalebi
Publication date: 2005/3/28
Journal name: Sensors and Actuators B: Chemical
Volume: 105
Pages: 479-483
Publisher: Elsevier
 
A new optical chemical sensor based on pyrogallol red immobilization on a cellulose
acetate membrane is reported for the determination of trace amount of cobalt. The method is
based on the spectrophotometric measurement of complex of pyrogallol red with Co (II) at
550nm. The observed absorbance intensity increased with increasing Co (II) concentration
from 1.7× 10− 6M up to 1.52× 10− 4M, with a limit of detection of 3.6× 10− 7M Co (II). The
time for the membrane sensor to reach the output signal of 98% of the steady-state ...

http://www.sciencedirect.com/science/article/pii/S0925400504004824

Journal Papers
Month/Season: 
March
Year: 
2005

تحت نظارت وف ایرانی

A versatile stable cobalt optical sensor based on pyrogallol red immobilization on cellulose acetate film | Prof. Ali A. Ensafi

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تحت نظارت وف ایرانی