This test paper allows the easy detection of arsine (AsH₃) in the gas phase. Arsenic in solutions has to be converted into AsH₃ with Zn/acid and purged from the solution. The Arsine is detected directly at the boundary layer between water and air.

• Colour change: White to brown-black

Arsenic test paper is used for the easy determination of arsenic in grape must and wine. For the determination of Arsine in compartment air the test paper is moistened with acetic anhydride.

Limit of sensitivity: 0,5 µg As