to calibrate the quantum yields for the hydrogen peroxide photolysis. Radical scavengers proved a viable method of measuring production of hydroxyl radical.

Chemical actinometry in the visible range

Meso-diphenylhelianthrene can be used for chemical actinometry in the visible range (400-700 nm). This chemical measures in the 475-610 nm range, but measurements in wider spectral ranges can be done with this chemical if the emission spectrum of the light source is known.

Relative actinometry

Relative

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