| http://www.w3.org/ns/prov#value | - This and other objects of the present invention are fulfilled by providing a method of detecting the presence of ammonium salts or amine salts comprising the steps of providing an item such as a container, to be analyzed, adding an alkaline solution to the item to enhance liberation of vapors of ammonia and/or amines from the item and analyzing a sample including the vapors to determine the presen
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