ChemInform Abstract: POLAROGRAPHIC DETERMINATION OF SULFUR BY COMBUSTION WITH REVERSE ADSORPTION OF SULFUR DIOXIDE AND ITS REDUCTION TO HYDROGEN SULFIDE

1978 ◽  
Vol 9 (27) ◽  
Author(s):  
B. YA. KAPLAN ◽  
T. N. VARAVKO ◽  
I. N. VLADIMIRSKAYA
1967 ◽  
Vol 39 (2) ◽  
pp. 260-261 ◽  
Author(s):  
Leonard L. Ciaccio ◽  
Thano P. Cotsis

1969 ◽  
Vol 23 (5) ◽  
pp. 528-531 ◽  
Author(s):  
Robert A. Burley

Infrared spectrophotometry can be applied to the detection of trace impurities and doping elements in high purity elemental selenium. The impurities examined include arsenic, sulfur, tellurium, and their oxides; chlorine, carbon dioxide, hydrogen sulfide, and selenious acid. Present results support earlier conclusions to the effect that the oxidation of impurities occurs readily in molten selenium. The band positions of sulfur dioxide dissolved in vitreous selenium show that the solution is analogous to solutions of sulfur dioxide in liquid sulfur and organic solvents.


1997 ◽  
Vol 62 (4) ◽  
pp. 609-619 ◽  
Author(s):  
Vlastimil Kubáň

Ammonia (up to 0.3 vol.%) can be determined (RSDs < 2%) after separation from a process gas stream containing (vol.%): carbon dioxide (0.3-20), hydrogen sulfide (< 0.4), hydrogen cyanide (< 1.5 . 10-4), sulfur dioxide (1), carbon monoxide (< 3) in 50-90 vol.% nitrogen and hydrocarbons. The ammonia content in sample is determined through changes in the conductivity of an acceptor stream (3 mM boric acid) caused by absorption of the analyte passed through a Nafion capillary membrane.


1954 ◽  
Vol 3 (1) ◽  
pp. 7-10 ◽  
Author(s):  
YASUSHI KITANO ◽  
HIDEMATSU TAKAKUWA

Sign in / Sign up

Export Citation Format

Share Document