초록 ▼

A flow injection electrochemical detecting device has a base (10), a cover pivotally mounted on the base (10), and a locking device attached between the base (10) and the cover (20). The base (10) has a recess (12) defined in a top to accommodate a working electrode inside the recess (12). An annula

A flow injection electrochemical detecting device has a base (10), a cover pivotally mounted on the base (10), and a locking device attached between the base (10) and the cover (20). The base (10) has a recess (12) defined in a top to accommodate a working electrode inside the recess (12). An annular trench (28) in a bottom partially receives an O-ring (282) serving as a separator to form a space between the base (10) and the cover (20). Multiple channels are defined through the cover (20) to communicate with the space. Therefore, a flow injection electrochemical detecting device is achieved. By pivotally attaching the cover (20) on the base (10) and using the locking device, the detecting device is easily opened or closed to change the working electrode (50) in a convenient way.

대표청구항 ▼

What is claimed is: 1. A flow injection electrochemical device comprising: a base (10) with a top, a front end, a rear end, and sides, and having a recess (12) defined in the top extending to the front end and a pivotal post (11) formed near the rear end; a working electrode (50) being placed insid

What is claimed is: 1. A flow injection electrochemical device comprising: a base (10) with a top, a front end, a rear end, and sides, and having a recess (12) defined in the top extending to the front end and a pivotal post (11) formed near the rear end; a working electrode (50) being placed inside the recess (12); a cover (20) with a top, a bottom, a front end, a rear end and two sides, which pivotally mounts on the base (10) and has a cutout (21) defined at the rear end to receive the pivotal post (11) of the base (10), a pin (111) penetrating the cover (20) at the cutout (21) and the pivotal post (11) to pivotally connect the cover (20) to the base (10), an annular trench (28) defined in the bottom of the cover, a resilient separator with an inner opening, which is an O-ring (282) and is partially mounted in the annular trench (28) of the cover (20), and multiple channels defined in the cover (20) and each having an opening at an area within the annular trench (28) to communicate with the inner opening of the resilient separator; said cover (20) including a first outlet (24) and a second outlet (26) and an reference electrode (30) and auxiliary electrode (40) engaged within said first outlet and said second outlet respectively; and a locking device attached between the base (10) and the cover (20). 2. The flow injection electrochemical device as claimed in claim 1, wherein two ball dents (23) are defined at the front end of the cover (20); and the locking device comprises: two locating posts (14) formed on the top of the base (10) at the front end and each of the two locating posts (14) having a threaded hole (142) defined through the locating post (14); a threaded rod (18) screwing into the threaded hole (142) and having a bore (182) defined in the threaded rod (18); a resilient element (184) accommodated inside the bore (182); a ball (186) retractably mounted inside the locating post (14) and mounted on the resilient element (184) to detachably engage and lock with a ball dent (23). 3. The flow injection electrochemical device as claimed in claim 2, wherein the cover (20) further has two side cutouts (25) defined at the front end to match with the locating posts (14) and the two ball dents (23) are respectively defined in periphery of the two side cutouts (25). 4. The flow injection electrochemical device as claimed in claim 3, wherein the resilient element is a spring. 5. The flow injection electrochemical device as claimed in claim 1, wherein the multiple channels are: an inlet (22) defined through the cover (20) from the top and having an opening (221) at the area within the annular trench (28); a first outlet (24) defined in the cover (20) from one side and having an opening (241) at the area within the annular trench (28); and a second outlet (26) defined in the cover (20) from another side and having an opening (261) at the area within the annular trench (28). 6. The flow injection electrochemical device as claimed in claim 1, wherein the recess (12) is a dovetail recess having a width tapering toward the top of the recess (12). 7. The flow injection electrochemical device as claimed in claim 1, wherein the base (10) further has multiple grooves defined in the sides of the base to make the base easily held.