Product Overview
The Gray Cap Vacuum Blood Collection Tube (Sodium Fluoride/Potassium Oxalate Tube) is designed for accurate glucose testing. Pre-filled with Sodium Fluoride (NaF) and Potassium Oxalate (K₂C₂O₄), it inhibits glycolysis and prevents clotting. Ideal for preserving blood glucose stability for up to 24 hours at room temperature.

Key Features

Glucose Preservation:

NaF inhibits glycolytic enzymes, maintaining glucose stability for 24 hours (vs. 2 hours in standard tubes);

Precisely controlled additive ratio (blood volume error ≤±5%).

Rapid Anticoagulation & Safety:

Potassium oxalate chelates calcium ions within 5 seconds;

Silicone-coated interior minimizes hemolysis (rate <0.1%).

Standardized Design:

Gray cap (ISO 6710 coding) ensures global recognition;

Phthalate-free butyl stopper prevents sample contamination.

Primary Applications

Blood Glucose Testing:

Fasting blood glucose (FBG), postprandial glucose (PPG), oral glucose tolerance test (OGTT);

Delayed Testing Scenarios:

Ambulances, community clinics requiring extended sample stability;

Specialized Analysis:

Blood alcohol concentration testing (NaF inhibits ethanol metabolism enzymes).