Mikroskåler

Mikroskåler, also known as microtubes, are small laboratory tubes typically made from polypropylene with a screw‑cap or mouth seal. Their internal volume ranges from 0.2 mL up to 2.0 mL, making them ideal for storing, mixing, and transporting microscopic volumes of liquids. The tubes’ low optical density and high chemical resistance allow them to be used with a wide range of solvents, buffers, and reagents without significant interaction or absorption.

The design of a typical mikroskål includes a tapered neck for pipette access, a rounded bottom that facilitates complete sample aspiration, and a tight‑sealing cap that protects against evaporation and contamination. Many microtubes are manufactured in sterile, single‑use formats for sensitive biological applications, such as DNA or RNA extraction, enzymatic assays, or cell culture.

In addition to primary laboratory use, mikroskåler are employed in molecular biology for PCR reaction assembly, protein purification, and cryopreservation of cells. Their small volume reduces sample loss and reagent consumption, contributing to cost savings in high‑throughput workflows. Proper handling requires maintaining a clean environment and rotating samples to minimize gradient formation. Standard biosafety protocols must be followed when dealing with hazardous materials stored in microtubes.

Alternative container options include microplates, conical tubes, and vials; each has advantages depending on throughput, sample volume, and compatibility with automated instruments. Despite their simplicity, mikroskåler remain a cornerstone in modern laboratory methodology, valued for their durability, versatility, and ease of integration into a variety of experimental protocols.