MANUFACTURE OF FIBER OPTIC SENSORS TO MEASURE THE PH WATER
Journal Title: Current Trends in Natural Sciences - Year 2016, Vol 5, Issue 9
Abstract
A fiber-optic pH sensor based on evanescent wave penetration is presented. Evanescent wave penetration is generated by removing the clad and contact the core with the solution. Testing samples were perpetrated by add a strong acid (HCL) or a strong base (NaOH) at distilled water to produce different value of pH (from 4 to 13). To determine the absorption or transmission of the evanescent waves, that generate after where obtained on appropriate calibration curve to determine a wide range of pH, by using pH indicators. Where using methyl red, by add fixed amounts of this dyes to the water samples were obtained on samples with colors vary with pH values. Calculate the transmission and absorption with draw a relationship between the transmissions or absorption with the pH values, to obtain on suitable curves, considered as calibration curves. Calibration curve for methyl red is best, where extends (from 4 to 12) for pH value. Can calculate the pH value for any water sample to tested, by the add the same ratios of the organic dyes it used.
Authors and Affiliations
Bushra R. Mahdi, Hadi Dawyich AL-Attabi, Sadeq Dawood Salman
Keywords
Related Articles
- EP ID EP25049
- DOI -
- Views 272
- Downloads 12
A HISTORY OF GEODESIC MEASURMENTS – AN OVERVIEW OF THE TERRESTRIAL MESURMENTS
The aim of this paper is to presenting the history of land measurement. The history of these measurements began by the human desire to study Earth's shape and size. This has led to a series of discover and today we have...
STUDY ON THE DEW POINT TEMPERATURE IN AREAS COVERED BY COLLUVIAL MESOVOID SHALLOW SUBSTRATUM (CRYSTALLINE SCHISTS SCREE) IN THE LEAOTA MOUNTAINS, 2014
This paper present and discussed the results of the monitoring of the dew point values, recorded in October and November 2014, in an ecological station in the Leaota Mountains. In this station, two polls were located in...
RESEARCH ON THE DEVELOPMENT OF ALTERNATIVE TECHNOLOGIES FOR THE PRODUCTION OF TOMATO SEEDLINGS IN DRĂGANU ARGEŞ
This paper aims to find the most efficient techniques for the production of seedlings because it represents one of the greatest concerns of the vegetable growers, being a subject of great interest. A special attention s...
RESEARCHES REGARDING THE CHANGES OF SOME PHYSIOLOGICAL PARAMETERS AT THE PRUSSIAN CARP (Carassius auratus gibelio Bloch 1782) UNDER THE ACTION OF THE DUAL GOLD 960 EC HERBICIDE
Herbicides are chemical substances with selective toxic action (limited for some vegetal species) or general (for any species), used to fight against weeds in the crops, fruit and grapes-growing fields, parks etc. The a...
THE CULTURE OF ASIMINA TRILOBA (L.) DUNAL SEEDLINGS WITH A VIEW TOWARD THEIR DEVELOPMENT AS PLANTING MATERIAL
Asimina triloba (L.) Dunal, an exotic North American temperate-climate species, is little known or appreciated in Europe, especially in Romania. This work, with its goal of remodeling green spaces in Baia Mare by introd...