The Chaney adapter for syringe guidance is used to improve accuracy and regenerability. The syringe with a maximum value of 100 μ l is made of stainless steel and anodized aluminum, and can be installed on a manual syringe to improve accuracy and regenerability. The locking nut can control the distance of the piston to run to a preset level to prevent blowouts caused by excessive back pressure or the syringe in an elevated pressure environment