COMPARISON OF A COMBINATION PH ELECTRODE AND FIELD-EFFECT TRANSISTOR ELECTRODE FOR THE DETERMINATION OF SOIL-PH AND LIME REQUIREMENT

Authors
QUIGLEY MN REID WS
Citation
Mn. Quigley et Ws. Reid, COMPARISON OF A COMBINATION PH ELECTRODE AND FIELD-EFFECT TRANSISTOR ELECTRODE FOR THE DETERMINATION OF SOIL-PH AND LIME REQUIREMENT, Communications in soil science and plant analysis, 26(19-20), 1995, pp. 3371-3383
Citations number
21
Categorie Soggetti
Agriculture Soil Science","Plant Sciences","Chemistry Analytical
Journal title
Communications in soil science and plant analysis → ACNP
ISSN journal
00103624
Volume
26
Issue
19-20
Year of publication
1995
Pages
3371 - 3383
Database
ISI
SICI code
0010-3624(1995)26:19-20<3371:COACPE>2.0.ZU;2-F
Abstract
A commercial laboratory robot has been used to compare the responses o f two different types of electrode for the determination of soil in wa ter pH (pHw), and soil in SMP buffer solution pH (pHSMP). The latter i s integral. to a popular method for the determination of soil lime req uirement. A combination pH electrode is compared with a solid state, i on selective field effect transistor electrode. Response times and hys teresis effects are discussed.