
TY  - JOUR
A1  - Browse, JA 
T1  - An Open-Circuit Infrared Gas Analysis System for Measuring Aquatic Plant Photosynthesis at Physiological pH
JF  - Functional Plant Biology
JO  - Functional Plant Biol.
Y1  - 1979
VL  - 6
IS  - 4
SP  - 493
EP  - 498
KW  - 
UR  - https://doi.org/10.1071/PP9790493 
N2  - A temperature-controlled assimilation chamber and gas circuit are described which allow steady-state measurement of photosynthesis by aquatic plants in media containing bicarbonate ions. Gas entering the assimilation chamber is divided into fine bubbles by passage through a sintered glass disc which forms the chamber floor. Rapid achievement and subsequent maintenance of chemical and phase equilibria are ensured by sustaining a high gas flow through the chamber via a recirculating loop in the gas circuit. Incorporation of this unit in a conventional open infrared gas analysis system allowed accurate and sensitive measurements to be made over wide ranges of pH and CO2 concentration. 
ER  -

