| http://www.w3.org/ns/prov#value | - in claim 1 as maintained with the only exception that this prior art cleansing agent comprises none of the salts defined under d) in present claim 1.However, it is common general knowledge, as well as a specific teaching provided e.g. by document (5) (see page 3, lines 32 to 41), that electrolytes such as sodium chloride or citrate are preferably to be added in an amount of preferably between 0.
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