Colorimetric Detection of Hydrogen Sulfide in Ambient Air

Colorimetric Detection of Hydrogen Sulfide in Ambient Air

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We present a fast method to monitor hydrogen sulfide (H2S) in ambient air the gel bottle cashmere based on a visible color change.Therefore, an immobilized copper(II) complex of the azo dye 1-(2-pyridylazo)-2-naphtol (H-PAN) was synthesized and prepared in tokidoki hello kitty blind box a matrix for screen printing.Different materials, reaching from opaque paper to transparent foils served as substrate.

The reaction of the copper(II) complex (Cu-PAN) to the target gas H2S was measured in reflection via UV/VIS spectroscopy.