Glass Capillary Tubes for Microbiology

Precision-engineered Glass Capillary Tubes are essential for micro-volume liquid handling, melting point determinations, and specialized microbiology assays. These tubes are crafted from high-quality borosilicate glass, ensuring excellent chemical resistance and thermal stability.

They are typically available in two varieties: Heparinized (red coded) to prevent blood clotting during collection, and Non-Heparinized (blue coded) for general laboratory use.

Key Features

• High Precision: Uniform bore diameter ensures accurate capillary action and consistent volume collection.

• Borosilicate 3.3 Glass: Superior clarity and resistance to thermal shock and chemical corrosion.

• Color-Coded Ends: Easy identification between treated (Heparin) and untreated tubes.

• Fire-Polished Ends: Smooth edges prevent damage to samples and reduce the risk of injury during handling.

• Standard Dimensions: Usually 75mm in length with an internal diameter of approximately 1.1mm to 1.2mm.

Technical Specifications

Common Applications

• Hematology: Micro-hematocrit determinations and blood gas analysis.

• Microbiology: Precise transfer of minute microbial cultures or reagents.

• Chemistry: Melting point capillary tubes for identifying crystalline substances.

• Sample Collection: Harvesting small volumes of liquid via capillary action without the need for a pump.