A fibre optic evanescent wave sensor used for the detection of trace nitrites in water

Dyuthi/Manakin Repository

A fibre optic evanescent wave sensor used for the detection of trace nitrites in water

Show full item record

Title: A fibre optic evanescent wave sensor used for the detection of trace nitrites in water
Author: Radhakrishnan, P; Girijavallabhan, C P; V P N Nampoori; Sivsankara Pillai, V N; Suresh Kumar, P
Abstract: A fibre optic technique for detecting trace amounts of nitrite compounds in water is described. The off-line fibre optic sensor outlined here is based on evanescent field absorption in a test solution formed by the reaction of nitrite compounds in water with suitable chemical reagents. A short unclad portion of a plastic clad silica fibre acts as the sensing region. The experimental results clearly establish the usefulness of the present technique for detecting very low concentrations of the order of 1 ppb (parts per billion) of nitrite compounds with a large dynamic range of 1–1000 ppb. Such a high sensitivity enables the present device to be used for measuring the nitrite content in drinking water.
URI: http://dyuthi.cusat.ac.in/purl/1768
Date: 2002-03-08


Files in this item

Files Size Format View Description
Dyuthi-P0237.pdf 87.03Kb PDF View/Open PDF

This item appears in the following Collection(s)

Show full item record

Search Dyuthi


Advanced Search

Browse

My Account