Hawksley microhaematocrit capillary tubes are high-quality products that conform to ISO 12772 and are supplied colour-coded in blue for plain, red for sodium Citrate heparinisation. K2 EDTA (purple), Ammonia (green) or lithium heparinisation (orange) can be supplied on request.
Sodium Citrate Heparin removes calcium from the blood sample. Calcium can be reintroduced to the sample at a later time, unlike K2 EDTA. This allows the user to control the level of clotting in the sample.
- Tubes are supplied fire polished to reduce wear on the centrifuge seals
- Uniform heparinisation is assured
Supplied in dispenser vials that contain 100 tubes each for hygienic, easy handling or in economy cardboard boxes to reduce transport and handling costs.