The tubes contain a glucose stabiliser, which allows you to block
the process of glycolysis for up to 24 hours at room temperature.
Scope: research of glucose and lactate
Adding sodium fluoride and potassium oxalate to a tube helps prevent
the breakdown of blood glucose (a process called glycolysis) and
maintain its level in a blood sample.
Sodium fluoride and potassium oxalate act as anticoagulants, binding
Ca2+ ions; in addition, sodium fluoride stabilises glucose levels.
Glucose breaks down to pyruvate and lactate with the sequential
implementation of various enzymatic reactions. Sodium fluoride
inhibits some enzymatic reactions, including the conversion of
phosphoglycerate to phosphoenolpyruvate, and prevents glycolysis.