bullet Sensors & Transducers Journal

    (ISSN 1726- 5479)

205.767

2008 e-Impact Factor

25 Top Downloaded Articles

Journal Subscription 2012

Editorial Calendar 2012

Submit an Article

Editorial Board

Current Issue

Sensors & Transducers journal's cover

Sensors & Transducers Journal 2011

Sensors & Transducers Journal 2010

Sensors & Transducers Journal 2009

Sensors & Transducers Journal 2008

Sensors & Transducers Journal 2007

2000-2002 S&T e-Digest Contents

2003 S&T e-Digest Contents

2004 S&T e-Digest Contents

2005 S&T e-Digest Contents

2006 S&T e-Digest Contents

 

Best Articles 2010

 

 

 

Vol. 137, Issue 2, February 2012, pp. 85-94

 

Bullet

 

Voltammetric Determination of Fluoride Ion Using Galvanostaticaly Grown Poly(3-hexylthiophene) Film

 

a,b Prerna AGGARWAL, a,b Suman SINGH, a,b Sajeela AWASTHI, a Alok SRIVASTAVA, b M. L. SINGLA

a Department of Chemistry and Advance Studies, Panjab University, Chandigarh-160014, India

b Agrionics, Central Scientific Instrumentations Organization, CSIR, Chandigarh-160030, India

Tel.: +91 172 2651787, fax: +91 172 2651787

E-mail: singla_min@yahoo.com  (M. L. Singla)

 

 

Received: 9 November 2011   /Accepted: 14 February 2012   /Published: 28 February 2012

Digital Sensors and Sensor Sysstems

 

Abstract: Poly (3-hexylthiohene) films have been prepared by galvanostatic technique on platinum surface. The structure and surface morphology of the film was characterized by cyclic voltammetry (CV), FTIR and SEM imaging. Cyclic voltamogram of poly (3-HTh) film showed only one reduction peak at potential 0.82 V. Cyclic voltammogram of the poly (3-HTh) film when recorded in fluoride ion solution showed two redox pair at E1/2 = 0.048 V (A/A’) and E­1/2= 0.074 V (B/B’). The former peak may be attributed to [BF4]-/[BF4]2- redox couple and later peak to the presence of loosely bound fluoro-borate anions in the polymeric film respectively. Diffusion controlled process may be the possible reaction mechanism. The diffusion coefficient (D) and rate of reaction (R) for the reaction (B/B’) are calculated as 9.29 ´10-3 cm2 s-1 and 5.61 ´ 10-9 mol s-1 respectively. Poly (3-HTh) films showed detection limit as low as 2.5 mM.

 

Keywords: Polythiophene, Fluoride estimation, Galvanostatic technique, Cyclic voltammetry

 

 

Buy this article online or subscribe Sensors & Transducers journal (12 issues per year plus special issues; 40 % discount for payment IFSA Members):

 

 

Sensors & Transducers journal subscription

450 $ US per year:

 

Buy this article for
14.95 $ US:

 

 
 

 

 
 

Alternatively we accept a money transfer to our bank account. Please contact for details: sales@sensorsportal.com

 

 

Download <here> the Library Journal Recommendation Form

 

 

Read more about Chemical Sensors

 

 

 

 

 


1999 - 2012 Copyright ©, International Frequency Sensor Association (IFSA). All Rights Reserved.


Home - News - Links - Archives - Tools - Voltage-to-Frequency Converters - Standardization - Patents - Marketplace - Projects - Wish List - e-Shop - Sensor Jobs - Membership - Videos - Publishing - Site Map - Subscribe - Search

 Members Area -Sensors Portal -Training Courses - S&T Digest - For advertisers - Bookstore - Forums - Polls - Submit Press Release - Submit White Paper - Testimonies - Twitter - Facebook - LinkedIn