Sealed-Tube Combustion Technique for Determination of Deuterium in Organic Compounds

1956 ◽  
Vol 28 (4) ◽  
pp. 530-531 ◽  
Author(s):  
N. R. Trenner ◽  
B. H. Arisen ◽  
R. W. Walker
Keyword(s):  
Organic Compounds ◽  
Combustion Technique

Determination of Sulfur by Wet Combustion with Perchloric Acid

1956 ◽  
Vol 29 (3) ◽  
pp. 1107-1116 ◽  
Author(s):  
Per Olof Bethge
Keyword(s):  
Hydrogen Sulfide ◽  
Organic Compounds ◽  
Conventional Method ◽  
Perchloric Acid ◽  
Sample Weights ◽  
Combustion Technique ◽  
Cent Sample

Abstract Difficulties in the determination of sulfur in wood and pulp samples by the conventional method of Grote and Krekeler have been overcome by applying a wet combustion technique, using perchloric and nitric acids. The sulfur is reduced to hydrogen sulfide by boiling with a reduction mixture, and determined iodometrically. The method gives quantitative yields for pure organic compounds, and is suitable for a great variety of samples with sulfur contents from 0.01 to 100 per cent. Sample weights can be varied from 9 mg. to 5 grams.

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