CN2689227Y

CN2689227Y - Detector flowing pool of liquid-phase chromatograph

Info

Publication number: CN2689227Y
Application number: CN 200420021814
Authority: CN
Inventors: 马明远
Original assignee: Shanghai Wufeng Scientific Instruments Co ltd
Current assignee: Shanghai Wufeng Scientific Instruments Co ltd
Priority date: 2004-04-08
Filing date: 2004-04-08
Publication date: 2005-03-30
Anticipated expiration: 2014-04-08

Abstract

The utility model provides a detector flowing pool of liquid-phase chromatograph, comprising a pool body, a channel, a hole, a quartz window and a pad. Wherein, a dummy club which is provided with a convex ring is arranged at the position of the channel on the end surface of the pool body, and convex stripes are provided between the dummy club and the convex ring. One end side surface of the channel is communicated with an inflow hole, and the other end side surface is communicated with an outflow hole. Wherein, the pad is arranged on the end surface of the pool body, a crack is arranged in the middle of the pad, and both sides of the crack are provided with long holes which are arranged on the dummy club. Wherein, the quartz window is mounted on the pad. Therefore, the detector flowing pool of liquid-phase chromatograph has excellent sealing, and can guarantee that the high performance of the detector flowing pool can be realized.

Description

The detecting device flow cell of liquid chromatograph

Technical field

The utility model relates to composition analysis instrument, particularly a kind of detecting device flow cell of liquid chromatograph.

Background technology

Liquid chromatograph is used for the fluid sample component concentration is carried out analysis to measure, be that sample is by placing the detecting device flow cell of light path, measure that component converts electric signal to again to the absorption value of light in the sample, after data processing, calculate this components contents (or concentration of sample).The kind of detecting device is a lot, for example the most frequently used ultraviolet (UV) detecting device, its flow cell is to make a call to two passages on a pond body 1 as shown in Figure 1, be respectively sample cell 2 and reference cell 3 (not drawing among the figure), mount quartz window 4 in both ends of the surface again, and fixedly connected with support, also bore two holes on the pond body 1 at two ends by O-ring seal, one is connected with sample cell 2 front ends is import 5-1, and another and sample cell 2 rear ends are connected and are outlet 5-2.But there is following problem in this device: contacting between 4 liang of planes of (1) pond body 1 end face and quartz window always has the slit to be difficult to sealing, the easy seepage of sample and reference liquid; (2) if the pressure of sample cell 2 and reference cell 3 differs too big, sample and reference liquid interpenetrate easily, thereby influence the measuring accuracy of instrument.

Summary of the invention

The utility model produces the existing technical matters of seepage and a kind of detecting device flow cell that prevents seepage is provided in order to solve existing detecting device flow cell end face.

According to above-mentioned purpose, the utility model provides a kind of detecting device flow cell of liquid chromatograph, by pond body, passage, hole, quartz window, also has pad to form; Wherein there is boss at the passage place of pond body end face, and protruding circle is arranged outward, between boss and the protruding circle burr is arranged; Its passage one end side surface communicates with ostium, and other end side communicates with tap hole; Its Intermediate gasket is placed on the body end face of pond, in the middle of the pad crack is arranged, and there is slotted hole the both sides, crack, and slotted hole is positioned on the boss; Wherein quartz window is installed on the pad.

Said apparatus, its Intermediate gasket adopt the high stability engineering plastic materials to make.

The utility model has guaranteed the high performance realization of detecting device flow cell owing to taked above technical measures.

Description of drawings

Fig. 1 is the structural representation of existing detecting device flow cell.

Fig. 2 is a structural representation of the present utility model.

Fig. 3 is a pond of the present utility model body end face structure synoptic diagram.

Fig. 4 is a gasket construction synoptic diagram of the present utility model.

Embodiment

As shown in Figure 2, a kind of detecting device flow cell of liquid chromatograph by pond body 1, passage 2, hole 5, quartz window 4, also has pad 9 to form; Wherein there is boss 6 at passage 2 places of pond body 1 end face, and passage 2 one end side surface communicate with ostium 5-1, and other end side communicates with tap hole 5-2; Pad 9 is placed on pond body 1 end face, and wherein quartz window 4 is installed on the pad 9.This shows that the utility model has 2 innovations, the one, body 1 end face in pond is not a plane, at passage 2 places boss 6, protruding circle 7 and burr 8 is arranged; The 2nd, between pond body 1 end face and quartz window 4, pad 9 is arranged.

As shown in Figure 3, on pond body 1 both ends of the surface, located boss 6, protruding circle 7 has been arranged outside two boss 6, irregular burr 8 has been arranged between boss 6 and the protruding circle 7 at passage 2 (sample cell) and passage 3 (reference cell).The boss 6 here, protruding circle 7 be height slightly, and burr 8 takes second place.

As shown in Figure 4, there is slotted hole 9-2 both sides in the pad 9 intermediate cracking 9-1, and passage 2 on its big young pathbreaker's boss 6 and ostium 5-1 thereof or tap hole 5-2 surround.Pad 9 adopts the high stability engineering plastic materials to make, and has certain elasticity and and sealing ability.

Return Fig. 2, during assembling, earlier pad 9 is placed on the end face of pond body 1, its slotted hole 9-2 places on the slightly high boss 6, quartz window 4 is fixedly mounted on the pad 9 again, and pad 9 pressurizeds are distortion slightly, thereby closely contact with boss 6, protruding circle 7, burr 8, so have fabulous sealing.Even sample or reference liquid have seepage, also will discharge and can not interpenetrate from crack 9-1.

Claims

1, a kind of detecting device flow cell of liquid chromatograph by pond body (1), passage (2), hole (5), quartz window (4), is characterized in that: also have pad (9) to form; Wherein the passage (2) of pond body (1) end face has been located boss (6), and protruding circle (7) is arranged outward, between boss (6) and the protruding circle (7) burr (8) is arranged; Its passage (2) one end side surface communicate with ostium (5-1), and other end side communicates with tap hole (5-2); Its Intermediate gasket (9) is placed on pond body (1) end face, in the middle of the pad (9) crack (9-1) is arranged, and there is slotted hole (9-2) both sides, crack (9-1), and slotted hole (9-2) is positioned on the boss (6); Wherein quartz window (4) is installed on the pad (9).

2, device according to claim 1 is characterized in that: its Intermediate gasket (9) adopts the high stability engineering plastic materials to make.