a substance<>has<>a ph value greater than 7
As all Scott false positive substances have lower pKa values than cocaine, or in their basic from higher pKa values than the cocaine base, they can be discriminated from cocaine by a suitable pH test of the solution.
If a substance has a ph value greater than 7,that indicates that it is base.
If a substance has a ph value greater than 7, what does it indicate?