Laboratory and field measurements of aquatic productivity made by a minicomputer employing a dual oxygen electrode system

1982 ◽  
Vol 72 (1) ◽  
pp. 53-60 ◽  
Author(s):  
D. F. Smith ◽  
S. M. J. Horner
Keyword(s):  
Field Measurements ◽  
Oxygen Electrode ◽  
Electrode System ◽  
Aquatic Productivity

scholarly journals A Rapid Respiratory Toxicity Test Using Caenorhabditis elegans with an Oxygen Electrode System

2002 ◽  
Vol 48 (3) ◽  
pp. 269-272 ◽  
Author(s):  
Shinya Kohra ◽  
Nobuaki Tominaga ◽  
Yuji Takao ◽  
Masaki Nagae ◽  
Yasuhiro Ishibashi ◽  
...  
Keyword(s):  
Caenorhabditis Elegans ◽  
Toxicity Test ◽  
Oxygen Electrode ◽  
Electrode System ◽  
Respiratory Toxicity

Microprocessor control of an oxygen electrode system

1981 ◽  
Vol 52 (7) ◽  
pp. 1092-1096 ◽  
Author(s):  
Richard Volpicelli ◽  
Ralph Prydekker ◽  
William Hagar
Keyword(s):  
Oxygen Electrode ◽  
Electrode System ◽  
Microprocessor Control

Analysis of Free and Total Glycerol in Biodiesel Using an Electrochemical Assay Based on a Two-Enzyme Oxygen-Electrode System

2010 ◽  
Vol 22 (9) ◽  
pp. 995-999 ◽  
Author(s):  
Tacia Luetkmeyer ◽  
Rosana Monteiro dos Santos ◽  
Adriana Barbosa da Silva ◽  
Roberto Salgado Amado ◽  
Eduardo de Castro Vieira ◽  
...  
Keyword(s):  
Oxygen Electrode ◽  
Electrode System ◽  
Electrochemical Assay ◽  
Total Glycerol

Some Aspects of a Fluidized Zinc/Oxygen Electrode System

Nature ◽  
1969 ◽  
Vol 221 (5175) ◽  
pp. 55-57 ◽  
Author(s):  
J. R. BACKHURST ◽  
E. GOODRIDGE ◽  
R. E. PLIMLEY ◽  
M. FLEISCHMANN
Keyword(s):  
Oxygen Electrode ◽  
Electrode System

The effects of temperature upon the reproduction and respiration of a marine obligate psychrophile

1974 ◽  
Vol 20 (10) ◽  
pp. 1341-1345 ◽  
Author(s):  
R. R. Christian ◽  
W. J. Wiebe
Keyword(s):  
Growth Efficiency ◽  
Oxygen Electrode ◽  
Electrode System ◽  
Maximum Temperature ◽  
Respiration Rates ◽  
Highly Sensitive ◽  
Growth Respiration ◽  
Lower Temperature Range ◽  
Effects Of Temperature ◽  
Lower Temperature

The growth and respiration rates of a marine obligate psychrophile, Vibrio sp., were determined in a complex medium using optical density and viable counts and a polarized oxygen-electrode system. Growth rate was optimal at 7C and decreased at 10C, the maximum temperature for growth. Respiration increased continually from 1to 10C. Both growth and respiration rates were highly sensitive to small changes in temperature. For example, rates at 4C were 1.8 and 4.4 times higher than at 1C for growth and respiration, respectively. Growth efficiencies were calculated as generations per hour divided by respiration rate. Results indicated that the growth efficiency of this bacterium was much greater at the lower temperature range of growth.

IN SITU MEASUREMENT OF DISSOLVED MATERIALS AS AN INDICATOR OF ORGANIC TERRAIN TYPE

1973 ◽  
Vol 53 (2) ◽  
pp. 231-236 ◽  
Author(s):  
M. E. WALMSLEY ◽  
L. M. LAVKULICH
Keyword(s):  
Ph Value ◽  
Environmental Parameters ◽  
Field Measurements ◽  
Oxygen Electrode ◽  
Natural Systems ◽  
Terrain Type ◽  
Ion Activity ◽  
Different Types ◽  
Dissolved Load

Portable equipment has been used to measure selected environmental parameters in situ. A battery-operated potentiometer used in conjunction with several specific ion electrodes, a platinum redox electrode, and a combination pH electrode were used to obtain ion activity, pH, and Eh measurements of natural systems. In addition, dissolved oxygen concentration was measured using an oxygen electrode and battery-operated meter. Results from the analysis of several streams are presented to illustrate the application of the technique to field measurements of streams as an indicator of environmental disturbance. Information collected also allowed for the differentiation of different types of organic terrain based on the dissolved load of the saturated organic materials. The terrain type referred to as fen had a higher activity of Na, Cl, and Ca, a higher pH value, and a lower concentration of oxygen than the bog terrain type. These results are explained with reference to organic terrain morphology and the distribution of permafrost in the study area.

scholarly journals Rapid Antibiotics Screening Method for Actinobacillus actinomycetemcomitans Using Oxygen Electrode System.

1999 ◽  
Vol 41 (2) ◽  
pp. 201-209 ◽  
Author(s):  
Kenji Tezuka ◽  
Masaki Inada ◽  
Hisashi Hashimoto ◽  
Tomohisa Ogawa ◽  
Masataka Ezure ◽  
...  
Keyword(s):  
Screening Method ◽  
Oxygen Electrode ◽  
Electrode System ◽  
Actinobacillus Actinomycetemcomitans
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