Premium
A multichannel microcomputer‐based system for continuously measuring and recording ion activities of uptake solutions during ion absorption by roots of intact plants
Author(s) -
GLASS ANTHONY D. M.,
SIDDIQI M. YAEESH,
DEANEDRUMMOND CELIA E.
Publication year - 1983
Publication title -
plant, cell and environment
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.646
H-Index - 200
eISSN - 1365-3040
pISSN - 0140-7791
DOI - 10.1111/1365-3040.ep11587647
Subject(s) - microcomputer , ion , data acquisition , absorption (acoustics) , voltmeter , electrode , computer hardware , analytical chemistry (journal) , chemistry , materials science , voltage , computer science , electrical engineering , engineering , telecommunications , chromatography , chip , organic chemistry , composite material , operating system
. A microcomputer‐based system for the measurement of changes of ion activity (H + , NO 3 − , K + ) in the uptake solutions during ion absorption by roots of intact plants is described. Ion activities are measured by means of ion‐specific electrodes in a multichannel programmable voltmeter (data acquisition/control unit) which is activated by means of a microcomputer. Incoming data are stored digitally on tape cassettes or floppy discs via the microcomputer. The speed of sampling and large numbers of samples which can be simultaneously measured and recorded make this an extremely versatile system which might be employed for measuring and recording any number of analogue voltage signals.