Colorimetric Detection of Hydrogen Sulfide in Ambient Air

Colorimetric Detection of Hydrogen Sulfide in Ambient Air

Blog Article

We present a fast method to monitor hydrogen sulfide (H2S) in ambient air based on a visible color change.Therefore, an immobilized copper(II) complex of the azo dye 1-(2-pyridylazo)-2-naphtol (H-PAN) was Freezer Thermometers synthesized and prepared Gels in 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.