2-hydrazono-4,6-dinitrobenzthiazolones useful to form dyestuffs

Apparatus for the photometric determination of gas concentration

Ascorbate resistant detection of hydrogen peroxide

Atmospheric ozone concentration detector

Atmospheric ozone concentration detector

Chemical concentration pressure analyzing apparatus and process

Chemical indicator that includes potassium dichromate and urea a

Composition and method for the detection of hydrogen peroxide

Compositions for the detection of high levels of hydrogen peroxi

Detection of hydrogen peroxide with optical indicator chalcogen

Evaluating method for NOx eliminating catalyst, an...

Hydrogen peroxide and peracetic acid indicators and methods

Ink composition for sensing gas exposure and gas exposure...

Method and apparatus for the analysis of a liquid carrying a...

Method and device employing covalently immobilized colored dyes

Method and test strip of detecting oxidizing adulterant in...

Method for determining a level of treatment with ozone of a...

Method for evaluating, monitoring or controlling the efficiency,

Method for the determination of organic peroxides in organic sol

Method for the online determination of hydrogen peroxide