1. An aqueous balanced solution of electrolytes with ion content a) 138-146 mmol / l sodium, b) 4-5 mmol / l potassium, c) 0.5-2.0 mmol / l calcium, d) 1.0-1, 5 mmol / L magnesium, e) 100-108 mmol / L chloride, f) 0.5-1.5 mmol / L phosphate, g) 18-26 mmol / L gluconate, and h) 20-28 mmol / L acetate. 2 . A balanced aqueous solution of electrolytes according to claim 1, comprising 140-144 mmol / l sodium. A balanced aqueous solution of electrolytes according to claim 1 or 2, comprising 4.3-4.7 mmol / L potassium. 4. A balanced aqueous solution of electrolytes according to claim 1, including 1.0-1.5 mmol / l of calcium. A balanced aqueous solution of electrolytes according to claim 1, including 1.1-1.4 mmol / l of magnesium. A balanced aqueous solution of electrolytes according to claim 1, including 102-106 mmol / l of chloride. An aqueous balanced electrolyte solution according to claim 1, comprising 0.8-1.2 mmol / L phosphate. A balanced aqueous solution of electrolytes according to claim 1, including g) 20-24 mmol / l gluconate. A balanced aqueous solution of electrolytes according to claim 1, including h) 22-26 mmol / L acetate. An aqueous balanced electrolyte solution according to claim 1, characterized in that it has a pH value in the range from 5.0 to 8.0.11. A balanced aqueous solution of electrolytes according to claim 1, characterized in that it has a pH value in the range from 6.0 to 7.0.12. A mixture of electrolyte with ion content a) 24.5-25.9 wt.% Sodium, b) 1.21-1.51 wt.% Potassium, c) 0.15-0.61 wt.% Calcium, d) 0, 19-0.28 wt.% Magnesium, e) 27.3-29.5 wt.% Chloride, f) 0.18-0.54 wt.% Phosphate, g) 27.1-39.1 wt.% gluconate； and h) 9.10-12.7 wt.% acetate, the data in wt.%, respectively, refer to the total weight of the electrolyte mixture. A method of obtaining an aqueous balanced electrolyte solution according to any one of claims 1 to 11, comprising the steps of: dissolving an electrolyte mixture according to claim 12 in such an amount of water that is
