Test swab and methods of making and using same

Details Test swab and methods of making and using same Test swab and methods of making and using same

G - Physics

01

N

G01N 33/20 (2006.01) G01N 21/78 (2006.01) G01N 33/84 (2006.01) G01N 21/29 (2006.01)

Patent

CA 2046657

A swab (10) is impregnated with a test reagent such that a test for a specific substance can be effected by rubbing the im- pregnated swab over the surface to be tested and then viewing the swab for a reagent reaction. A method for testing for a metal includes impregnating a swab with a reagent, such as, for example, a rhodizonate dye reagent when testing for lead, and rubbing the swab over a surface suspected of containing the metal. If a metal is present in the surface, a reaction with the metal produces an easily detectable color on the swab tip.

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