Solution bag for apparatus for chemically analyzing blood

A solution bag for an apparatus for analyzing blood chemistry, comprising:

• a receptacle that contains a solution;
• a valve body that is attached to the receptacle and has a through-hole longitudinally formed therein;
• a valve spool that is disposed in the through-hole of the valve body;
• and
• a solution leakage preventing unit that is disposed in the valve spool;
• wherein the valve body has a flow channel longitudinally formed along the through-hole and a solution discharging pipe perpendicularly formed at a face of the valve body, wherein the flow channel and the solution discharging pipe are spaced at a predetermined distance from each other;
• and
• wherein the solution leakage preventing unit of the valve spool includes a first blocking member that substantially prevents the solution from leaking outside and a second blocking member that is spaced apart from the first blocking member and selectively stops or allows the solution flow from the flow channel to the solution discharging pipe.