Application of ISFETs for pH measurement in rain droplets

Authors
Poghossian, A Baade, A Emons, H Schoning, MJ
Citation
A. Poghossian et al., Application of ISFETs for pH measurement in rain droplets, SENS ACTU-B, 76(1-3), 2001, pp. 634-638
Citations number
15
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
SENSORS AND ACTUATORS B-CHEMICAL
ISSN journal
09254005 → ACNP
Volume
76
Issue
1-3
Year of publication
2001
Pages
634 - 638
Database
ISI
SICI code
0925-4005(20010601)76:1-3<634:AOIFPM>2.0.ZU;2-S
Abstract
The analysis of chemical components in single raindrops, including pH, is e xpected to give a new information about air pollution. This paper presents the first attempt of an ISFET application for the pH measurement in raindro ps. The investigated rain samples are originated from 11 different rain eve nts including even individually collected (using a liquid nitrogen) droplet s. The results of pH measurements in raindrops with the pH ISFET are compar ed with the conventional glass electrode measurements in bulk rain samples. The observed raindrop size dependence of the pH value is discussed. (C) 20 01 Elsevier Science B.V. All rights reserved.