A RAPID INFRA-RED CARBON DIOXIDE ANALYSIS SCREENING TECHNIQUE FOR PREDICTING GROWTH AND PRODUCTIVITY OF MARINE ALGAE

1981 ◽  
pp. 461-466 ◽  
Author(s):  
N. D. H. Lloyd ◽  
J. L. McLachlan ◽  
R. G. S. Bidwell
Keyword(s):  
Carbon Dioxide ◽  
Marine Algae ◽  
Screening Technique ◽  
Infra Red ◽  
Carbon Dioxide Analysis

Coulometric total carbon dioxide analysis for marine studies: Automation and calibration

1987 ◽  
Vol 21 (2) ◽  
pp. 117-133 ◽  
Author(s):  
K.M Johnson ◽  
J.McN Sieburth ◽  
P.J.leB Williams ◽  
L Brändström
Keyword(s):  
Carbon Dioxide ◽  
Total Carbon ◽  
Carbon Dioxide Analysis

Flow-through Respirometry: The Basics

2018 ◽  
pp. 71-93
Author(s):  
John R. B. Lighton
Keyword(s):  
Carbon Dioxide ◽  
Signal Amplitude ◽  
Data Acquisition System ◽  
Metabolic Rates ◽  
Flow Rates ◽  
Advantages And Disadvantages ◽  
Carbon Dioxide Analysis ◽  
Response Correction ◽  
Flow Through ◽  
Mathematical Techniques

This chapter describes the basic theory behind the most widely used method for measuring metabolic rates: flow-through or open-system respirometry. The advantages and disadvantages of the technique are summarized and the two major types of flow-through respirometry systems are described. Recommendations are given on choosing an appropriate flow rate to compromise between speed of response and signal amplitude; on the nature and importance of the cage time-constant; on using mathematical techniques for response correction by compensating for first-order wash-out kinetics and avoiding mixing errors; the essential differences between oxygen and carbon dioxide analysis; choosing a data acquisition system; generating and measuring flow rates; removing or mathematically compensating for water vapor; important tools; and checklists for deciding on system configuration for a given investigation.

scholarly journals The estimation of small quantities of carbon dioxide in air by the absorption of infra-red radiation

1940 ◽  
Vol 129 (857) ◽  
pp. 468-474 ◽  
Keyword(s):  
Carbon Dioxide ◽  
Absorption Band ◽  
Water Vapour ◽  
Preliminary Treatment ◽  
Transmitted Radiation ◽  
Infra Red ◽  
Red Radiation

This paper describes an investigation of the possibility of measuring small amounts of carbon dioxide in air by the absorption of infra-red radiation. It is shown that the method is simple, trustworthy and accurate, and is very sensitive for small amounts of carbon dioxide, of the order of that present in ordinary air. The principle is applied in a form superior to any hitherto used, in that the whole of the transmitted radiation is measured instead of merely the radiation at the maximum of a particular absorption band. This makes a spectrometer unnecessary, eliminates the disturbing effect of variation of temperature, and allows much less sensitive detecting apparatus to be used. The only preliminary treatment necessary is the removal of water vapour from the air under examination.

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