NISCAIR Online Periodicals Repository

Research Journals >
Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.13 [2006] >
IJCT Vol.13(3) [May 2006] >

Title: An extractive colorimetric method for determination of pentachlorophenol (PCP)
Authors: Sao, Aruna
Pillai, Ajai K
Gupta, V K
Keywords: Spectrophotometry determination
Issue Date: May-2006
Publisher: CSIR
IPC CodeG01J3/00
Abstract: A new extractive spectrophotometric method, which is sensitive, is described for the determination of pentachlorophenol (PCP), a widely used insecticide and herbicide. The method is based on the reaction of pentachlorophenol with concentrated nitric acid at elevated temperature to form chloranil, which liberates iodine with potassium iodide. The liberated iodine then forms yellow brown coloured complex with cetyltrimethyl-ammoniumbromide (CTAB) having absorption maximum at 390 nm and extractable into isoamyl alcohol. Beer’s law is obeyed over the concentration range of 2.5-20 g of PCP in a final solution 100 mL (0.025-0.20 ppm) and has molar absorptivity and Sandell’s sensitivity values of 9.6105 L mol-1 cm-1 and 0.000277-gcm-2, respectively. The detection limit and quantification limit for the proposed method is found to be 0.0018 and 0.0063 ppm, respectively. The method has been satisfactorily applied for the determination of PCP in water, plant material and biological samples.
Page(s): 294-297
ISSN: 0975-0991 (Online); 0971-457X (Print)
Source:IJCT Vol.13(3) [May 2006]

Files in This Item:

File Description SizeFormat
IJCT 13(3) 294-297.pdf54.58 kBAdobe PDFView/Open
 Current Page Visits: 892 
Recommend this item


Online Submission of Articles |  NISCAIR Website |  National Knowledge Resources Consortium |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2015 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 163942 since 01-Sep-2015  Last updated on 21-Jun-2016Webmaster: