scholarly journals XLII.—Water analysis; determination of the nitrogenous organic matter

1867 ◽  
Vol 20 (0) ◽  
pp. 445-454 ◽  
Author(s):  
J. Alfred Wanklyn ◽  
E. T. Chapman ◽  
Miles H. Smith
Keyword(s):  
Organic Matter ◽  
Water Analysis ◽  
Analysis Determination

scholarly journals The determination of organic matter in air

1887 ◽  
Vol 41 (246-250) ◽  
pp. 238-247 ◽  
Keyword(s):  
Organic Matter ◽  
Oxalic Acid ◽  
Potassium Permanganate ◽  
Water Analysis ◽  
Distilled Water ◽  
Dilute Solution ◽  
Single Determination ◽  
Time Required

The Only methods hitherto proposed for determining the amount of organic matter in air are the two devised by the late Dr. Angus Smith (“Air and Rain”). According to the first of these methods, a defi­nite quantity of the air to be examined is slowly bubbled through a dilute solution of potassium permanganate of known strength until it is fully or considerably bleached,' and in the latter ease the amount of undecomposed permanganate determined by oxalic acid. In the second method a known volume of air is bubbled through distilled water, and the latter examined for free and albuminoid ammonia by Wanklyn and Chapman’s process for water analysis. These methods are open to one or more of the following objec­tions :— 1. The time required for a single determination is very considerable , and recessarily varies with the amount of organic matter present.

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