Issue 13, 2016

On-line solid phase extraction method based on flow injection-FAAS using 1,10-phenanthroline modified chelating resin for chromium speciation in industrial water samples

Abstract

A solid phase extraction method for the speciation of chromium in industrial water samples using flow injection-FAAS has been described. 1,10-Phenanthroline immobilized Amberlite XAD-16 chelating resin was synthesized and used as the solid phase extractant. For enhancing Cr(III) preconcentration using the solid phase extractant, all chemical and flow variables were optimized. Total chromium was determined by reducing Cr(VI) to Cr(III) using hydroxylamine hydrochloride. The chelating resin was found to tolerate high amounts of commonly present matrix ions in water samples. The preconcentration factor and detection limit for 120 s preconcentration time were found to be 84 and 0.09 ng mL−1. The precision (% RSD) at the 100 μg L−1 level was 1.0%. The linearity for Cr(III) measurements was up to 580 μg L−1. Standard Cr(III) and Cr(VI) solutions traceable to NIST were used for spike recovery studies in industrial water samples. The validation of this method was carried out using SRM 1643e (Trace Elements in Water) supplied by NIST, USA.

Graphical abstract: On-line solid phase extraction method based on flow injection-FAAS using 1,10-phenanthroline modified chelating resin for chromium speciation in industrial water samples

Article information

Article type
Paper
Submitted
15 Jan 2016
Accepted
16 Jan 2016
First published
26 Jan 2016

RSC Adv., 2016,6, 10775-10782

On-line solid phase extraction method based on flow injection-FAAS using 1,10-phenanthroline modified chelating resin for chromium speciation in industrial water samples

N. Sharma, S. Tiwari and R. Saxena, RSC Adv., 2016, 6, 10775 DOI: 10.1039/C6RA01286H

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements