Argentopotentiometric determination of mercaptan and hydrogen sulfide sulfur with an antimony electrode

1978 ◽  
Vol 14 (1) ◽  
pp. 65-67
Author(s):  
B. N. Klopov ◽  
N. K. Makarova
Keyword(s):  
Hydrogen Sulfide ◽  
Sulfide Sulfur ◽  
Antimony Electrode

Fluorescence chemosensors for hydrogen sulfide detection in biological systems

The Analyst ◽  
2015 ◽  
Vol 140 (6) ◽  
pp. 1772-1786 ◽  
Author(s):  
Zhi Guo ◽  
Guiqiu Chen ◽  
Guangming Zeng ◽  
Zhongwu Li ◽  
Anwei Chen ◽  
...  
Keyword(s):  
Hydrogen Sulfide ◽  
Biological Systems ◽  
Sulfate Reducing Bacteria ◽  
Fluorescence Sensing ◽  
Sulfate Reducing ◽  
Potential Applications ◽  
Reducing Bacteria

The development of H2S fluorescence-sensing strategies and their potential applications in the determination of sulfate-reducing bacteria activity.

Separation and determination of sulfide sulfur and sulfate sulfur in soda lime silicate glass

2021 ◽  
Vol 571 ◽  
pp. 121072
Author(s):  
Yoshitaka Saijo ◽  
Yuichi Suzuki ◽  
Makiko Murata ◽  
Ryoji Akiyama ◽  
Masahiro Shimizu ◽  
...  
Keyword(s):  
Silicate Glass ◽  
Soda Lime ◽  
Sulfide Sulfur ◽  
Sulfate Sulfur ◽  
Soda Lime Silicate Glass

Pararosaniline as a New Chromogen for the Extractive Spectrophotometric Determination of Trace Amounts of Hydrogen Sulfide in Air

1993 ◽  
Vol 76 (4) ◽  
pp. 730-734 ◽  
Author(s):  
B S M Kumar ◽  
N Balasubramanian
Keyword(s):  
Methylene Blue ◽  
Hydrogen Sulfide ◽  
Absorption Coefficient ◽  
Sodium Hydroxide Solution ◽  
Current Method ◽  
Color System ◽  
Isopentyl Alcohol ◽  
Sensitive Spectrophotometric Method ◽  
Disodium Ethylenediaminetetraacetate

Abstract A sensitive spectrophotometric method for the determination of trace amounts of hydrogen sulfide H2S) in air, after fixing in a zinc acetate–disodium ethylenediaminetetraacetate–sodium hydroxide solution, is described. The reaction of iodate with the fixed H2S in the presence of acid and an excess of chloride leads to the formation of ICI2 ions. The resulting IC-2 species forms an ion par with pararosaniline cation, and the product is extracted into isopentyl alcohol. The color system obeys Beer’s law over the range of 0 to 5.0 μg H2S. The molar absorption coefficient of the color system is 1.8 × 104 L mol-1 cm-1 . The coefficient of variation is 3.3% for 10 determinations at 3.0 μg H2S. The effect of interfering gases on the determination is discussed. The method was applied to the determination of residual amounts of H2S present in a laboratory fume cupboard, and results were compared to those obtained by the widely used methylene blue method. The current method can be used to determine residues as low as 0.2 μg H2S.

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