Micro-insert, also known as a micro-insert vial or microvial insert, is a small glass or plastic container that is used in chromatography and analytical techniques to enable smaller sample volumes to be analyzed in standard-sized vials.
Micro-inserts are designed to fit inside standard-sized sample vials, which are typically larger in size. They are used when the available sample volume is limited or when the sample concentration is low. By using a micro-insert, the sample volume can be reduced, allowing for more efficient analysis and minimizing the risk of sample loss or evaporation.