Patent ID: 7687278
Filing Date: 2010-03-30
Classification: G01N,Y10T

Abstract:
1. A kit for pretreating saliva, comprising: (A) an aqueous solution of sodium hydroxide having a concentration of 0.01 to 10 mol/L, (B) an aqueous solution of tartaric acid and/or citric acid having a concentration of 0.01 to 3 mol/L, (C) a nonionic surface active agent and/or an amphoteric surface active agent, and (D) an aqueous solution containing tris(hydroxymethyl)aminomethane, the component (C) being mixed with at least one of the components (A), (B) and (D), or being provided separately from the components (A), (B) and (D), and at least one substance selected from the group consisting of sodium chloride, potassium chloride, calcium chloride, magnesium chloride, magnesium sulfate and manganese sulfate being contained in at least one of the components (A), (B), (C) and (D) in an amount of 5 to 25% by weight.