FE Sodium Fluoride / K3EDTA
VACUETTE® glucose tubes contain sodium fluoride as a glycolysis inhibitor. The anticoagulants K3EDTA, potassium oxalate or sodium heparin prevent the blood from clotting. The citrate/citric acid buffer reduces the pH value in the sample immediately after blood collection leading to an instant stabilization of glucose. Depending on the test system, VACUETTE® glucose tubes can also be used for lactate assays, with in most cases sodium fluoride being used in combination with potassium oxalate. 
Item: 454085
VACUETTE® TUBE 2 ml FE Sodium Fluoride / K3EDTA 13x75 grey cap-white ring, PREMIUM
Item: 454221
VACUETTE® TUBE 2 ml FE Sodium Fluoride / K3EDTA 13x75 grey cap-white ring, non-ridged
Item: 454427
VACUETTE® TUBE 2 ml FX Sodium Fluoride / Potassium Oxalate 13x75 grey cap-yellow ring, non-ridged
Item: 454033
VACUETTE® TUBE 4 ml FE Sodium Fluoride / K3EDTA 13x75 grey cap-black ring, non-ridged
Item: 454091
VACUETTE® TUBE 4 ml FE Sodium Fluoride / K3EDTA 13x75 grey cap-black ring, PREMIUM