What type of clamp is used to hold a buret in place during titration?

A buret clamp is specifically designed to securely hold a buret in place during titration, which is a common laboratory procedure for determining the concentration of a solution. These clamps are typically adjustable and can be easily attached to a stand or support, allowing for precise alignment and stability of the buret. The design of a buret clamp accommodates the slender shape and glass material of a buret, preventing it from slipping or falling during experiments. This is crucial because any movement could affect the accuracy of the titration results, which rely on the careful addition of titrant to the analyte until the reaction reaches its endpoint. The other types of clamps mentioned do not provide the same level of fit and support necessary for a buret's specific use in titration.