Table 1 Vacutainer tube material, anticoagulant system and catalogue number.

From: Factors affecting stability of plasma brain-derived neurotrophic factor

Tube name

Tube material

Anticoagulant

Top colour

Contains gel?

BD catalog #

K2EDTA

Plastic

Potassium EDTA

Purple

No

366,643

Li-Hep

Plastic

Lithium heparin

Green

No

367,880

Li-Hep (gel)

Plastic

Lithium heparin

Light green

Yes

367,962

Na-Hep

Plastic

Sodium heparin

Green

No

367,874

Na-Hep (glass)

Glass

Sodium heparin

Green

No

366,480