Burette

Burette is used in analytical chemistry for accurate and controlled dispensing of liquids. The burette is typically clamped vertically and filled with a solution, with the stopcock closed. By opening the stopcock and controlling the flow, the liquid can be added drop by drop or in a controlled manner to another solution in a flask or beaker. The graduated scale allows for precise measurement of the volume of liquid dispensed. Burettes are commonly used in titrations, where the volume of a solution needed for a chemical reaction is carefully measured to determine the concentration of an unknown substance.

滴定管用於分析化學中準確、可控地分配液體。滴定管通常垂直夾緊並注入溶液，同時關閉瓶塞。通過打開瓶塞和控制流量，可以將液體一滴一滴地加入燒瓶或燒杯中的另一種溶液，或以受控的方式加入另一種溶液。刻度尺可以精確測量分配的液體體積。滴定管通常用於滴定，即仔細測量化學反應所需的溶液體積，以確定未知物質的濃度。