Biological sulfane sulfur

Area of Science:

• Analytical Chemistry
• Biochemistry

Background:

• Sulfane sulfur is crucial in biological systems.
• Accurate quantification of sulfane sulfur is challenging.

Purpose of the Study:

• To develop and validate a voltammetric method for determining cyanide-reactive sulfane sulfur.
• To establish a reliable method for biological samples.

Main Methods:

• Incubation of samples with sulfurtransferase, thiolic cofactor, and cyanide.
• Electrochemical determination of thiocyanate or residual cyanide using silver or mercury electrodes.
• Differential pulse voltammetry for sensitive detection.

Main Results:

• A voltammetric method for sulfane sulfur determination was established.
• The thiocyanate-based procedure demonstrated preference, particularly with serum albumin and inorganic sulfide.
• The method provides estimates of sulfane sulfur content in biological materials.

Conclusions:

• The developed voltammetric method is effective for quantifying cyanide-reactive sulfane sulfur.
• The thiocyanate-based approach is recommended for its robustness in biological samples.
• This method aids in understanding the role of sulfane sulfur in biological processes.