Simultaneous Determination of Hydrogen Sulfide and Carbon Dioxide in Continuous Gas Stream

1946 ◽  
Vol 18 (6) ◽  
pp. 373-376 ◽  
Author(s):  
Clyde L. Blohm ◽  
Fred C. Riesenfeld
Keyword(s):  
Carbon Dioxide ◽  
Hydrogen Sulfide ◽  
Simultaneous Determination

scholarly journals Simultaneous Determination of Hydrogen, Methane and Carbon Dioxide of Breath Using Gas-Solid Chromatography.

1992 ◽  
Vol 38 (1) ◽  
pp. 103-109 ◽  
Author(s):  
Keisuke TSUJI ◽  
Masatoshi SHIMIZU ◽  
Yoshinori NISHIMURA ◽  
Yasue NAKAGAWA ◽  
Tomio ICHIKAWA
Keyword(s):  
Carbon Dioxide ◽  
Simultaneous Determination

Determination of Bromide and Bromate Ions in the Presence of Standard Ions by Suppressed Ion Chromatography

2019 ◽  
Vol 967 ◽  
pp. 171-178 ◽  
Author(s):  
Andriana Surleva ◽  
Veronika Ivanova
Keyword(s):  
Carbon Dioxide ◽  
Drinking Water ◽  
Reference Material ◽  
Simultaneous Determination ◽  
Chromatographic Method ◽  
Intermediate Precision ◽  
Experimental Conditions ◽  
Column Temperature ◽  
Recovery Test

An ion chromatographic method for determination of bromide and bromate in the presence of standard anions in drinking water was described. The method was based on separation on Metrosep A Supp 7-250 (250 x 4 mm) column with 3.6 mmol/L Na2CO3 as eluent and conductivity detection after sequential chemical and carbon dioxide suppression. The influence of flow rate and column temperature was studied and optimal experimental conditions for simultaneous determination of eight anions were chosen. Analytical characteristics of the ion chromatographic method were assessed for simultaneous determination of bromide, bromate, fluoride, chloride, nitrate, nitrite, phosphate and sulfate. The calibration curves were linear (r2=1, N=7) in the concentration ranges: 0.4-12 mg/L BrO3- and 0.3-11 mg/L Br-. Recovery test was performed on a spiked certified reference material for soft drinking water. The obtained recoveries for bromate and bromide were 96.0 and 101.0 %, respectively. The repeatability and intermediate precision were between 5.1 and 0.14 % (RSD) depending on the analytes concentration. The limits of detection were 20 μg/L BrO3- and 10 μg/L Br-

Qualitative Determination of Impurities in Elemental Selenium by Infrared Spectrophotometry

1969 ◽  
Vol 23 (5) ◽  
pp. 528-531 ◽  
Author(s):  
Robert A. Burley
Keyword(s):  
Carbon Dioxide ◽  
Hydrogen Sulfide ◽  
Sulfur Dioxide ◽  
Elemental Selenium ◽  
Infrared Spectrophotometry ◽  
Trace Impurities ◽  
Liquid Sulfur ◽  
Qualitative Determination ◽  
Determination Of Impurities

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.

Simultaneous determination of formaldehyde and hydrogen sulfide in air using the cataluminescence of nanosized Zn3SnLa2O8

2015 ◽  
Vol 183 (3) ◽  
pp. 1063-1068 ◽  
Author(s):  
Kaowen Zhou ◽  
Huizhen Fan ◽  
Chunxiu Gu ◽  
Baining Liu
Keyword(s):  
Hydrogen Sulfide ◽  
Simultaneous Determination
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