näytteenottoputkeen

A näytteenottoputkeen, often translated as a sampling tube or collection tube, is a crucial component in various scientific and medical fields, particularly in laboratory analysis and diagnostics. Its primary purpose is to safely and effectively collect, store, and transport biological or chemical samples for subsequent testing. These tubes are typically designed with specific features to maintain sample integrity and prevent contamination.

Commonly, näytteenottoputkeen are made of glass or plastic, with plastic being more prevalent due to its shatter-resistance and lower cost. They often come with a stopper or cap that creates a sealed environment, protecting the sample from external factors like air exposure, evaporation, or microbial contamination. The internal surface of the tube may also be treated with additives or coatings depending on the type of sample and the intended analysis. For example, tubes for blood collection might contain anticoagulants to prevent clotting or clot activators to promote it.

The design of a näytteenottoputkeen can vary significantly. Some are simple open tubes, while others are vacuum-sealed, which helps draw a precise amount of sample into the tube upon piercing a stopper. This vacuum technology is particularly common in venipuncture blood collection. The volume of these tubes also varies, ranging from small micro-tubes for specialized tests to larger tubes for general analysis. Their standardized dimensions ensure compatibility with laboratory equipment like centrifuges and automated analyzers.