Abstract: Apparatus for detecting the presence of foreign substances in a beverage. The apparatus for detecting the presence of Gamma-hydroxybutyrate or other drugs in a beverage comprises apparatus wherein cobalt nitrate, oxammonium chloride/ferric chloride, oxammonium sulphate/ferric chloride, 5% ferric chloride, saturated potassium dichromate, toluene/cobalt thiocyanate, chromium (IV) oxide/sulphuric acid carbodiimide salts in combination with oxammonium salts and ferric chloride, or lacmoid is supported on a substrate. The apparatus for detecting the presence of ketamines or other drugs in a beverage comprises apparatus wherein modified-Dragendorff Reagent is supported on a substrate.

Abstract: Apparatus for detecting the presence of foreign substances in a beverage. The apparatus for detecting the presence of Gamma-hydroxybutyrate or other drugs in a veverage comprises apparatus wherein cobalt nitrate, oxammonium chloride/ferric chloride, oxammonium sulphate/ferric chloride, 5% ferric chloride, saturated potassium dichromate, toluene/cobalt thiocyanate, chromium (IV) oxide/sulphuric acid carbodiimide salts in combination with oxammonium salts and ferric chloride, or lacmoid is supported on a substrate. The apparatus for detecting the presence of ketamines or other drugs in a beverage comprises apparatus wherein modified-Dragendorff Reagent is supported on a substrate.

Abstract: A device for testing for the presence of an analyte, the device comprising at least one reagent adapted to provide a calorimetric indication in the presence of the analyte, a catalyst to catalyse the reaction providing the calorimetric indication, and where there is provided one reagent, means for substantially inhibiting reaction between reagent and catalyst or where there is provided more than one reagent, means for substantially inhibiting reaction between said reagents and between said reagents and catalyst, prior to introduction of the analyte, wherein the at least one reagent and the catalyst are solids.