Microhematocrit testing of blood requires the use of blood capillary tubes which are used in the procedure for determining the ratio of PCV (Packed Cell Volume) of red blood cells to the volume of whole blood. This is performed by centrifuging the blood within the microhematocrit blood capillary tubes. Capitol Scientific offers both pre-treated and non-treated blood capillary tubes from a variety of manufacturers to suit your serology testing needs.
These Natelson soda lime glass capillary tubes are manufactured with tapered tips for easy collection of micro blood samples. Packed in lint-free boxes. Ends may be sealed with clay or patented caps. Heparinized tubes are evenly coated with ammonium heparin to prevent coagulation and do not interfere with sodium identification. Length x I.D.: 150 x 1.6mm. Volume: 250µL. Color Coded.
These Chase brand blood microhematocrit capillary tubes are manufactured from soda lime glass. They are packed in plastic vials with a reclosable snap-lock cap to maintain cleanliness. Ends may be sealed by flame, sealing clay or patented caps. They are available in borosilicate glass as a special order. Heparinized capillary tubes are treated to prevent blood clotting. Ammonium Heparin does not interfere with sodium identification.
These caraway capillary tubes are manufactured with tapered tips for easy collection of micro blood samples. Packed in lint-free boxes. Ends may be sealed with clay or patented caps. Heparinized tubes are evenly coated with ammonium heparin to prevent coagulation and do not interfere with sodium identification.
Globe Scientific's glass and plastic microhematocrit blood capillary tubes are designed for both safe blood collection as well as accurate micro-hematocrit determinations. Precision molded, they provide excellent sample retention during centrifugation. In addition, the tubes fill rapidly without affecting specimen integrity. Both glass and plastic microhematocrit tubes are available in plain style or with an anticoagulant (sodium or ammonium heparin) that keeps the blood from clotting. All microhematocrit tubes feature color-coded ends to easily identify the plain and heparin treated tubes. IMPORTANT NOTE: If collecting anti-coagulated blood from a blood collection tube, use a plain capillary tube. If collecting by finger stick from a patient or when using untreated blood, use capillary tubes that are treated with an anticoagulant (heparin).
