[Photometric determination of small quantities of hydrogen sulfide in the air].
D000395:Air Pollutants, Occupational / Q000032:analysis*; D006862:Hydrogen Sulfide / Q000032:analysis*; D010783:Photometry
D000395:Air Pollutants, Occupational; D006862:Hydrogen Sulfide
Fotometricheskoe opredelenie malykh kolichestv serovodoroda v vozdukhe.