Patent ID: 7658914

Claim:
A kit comprising: (a) a first container containing a first dry composition, said first dry composition comprising: (i) 90 g to 125 g of polyethylene glycol (“PEG”); (ii) 5 g to 10 g of an alkali metal sulfate, an alkaline earth metal sulfate or a mixture thereof; (iii) 2 g to 4 g of sodium chloride; and (iv) 0.5 g to 1.3 g of potassium chloride; and (b) a second container containing a second dry composition comprising 5 g to 15 g of an ascorbate component, said ascorbate component comprising ascorbic acid and a salt thereof in an ascorbic acid:salt weight ratio in the range of 2:8 to 8:2, wherein the calculated total number of moles of individual dissolved species in a solution made with the contents of the first and second containers made up to one liter with water is within the range of 300 to 700 mmol.