CN203253202U

CN203253202U - Solid phase extraction glass casing pipe

Info

Publication number: CN203253202U
Application number: CN 201220732052
Authority: CN
Inventors: 丁新良; 周伟杰; 刘文卫; 朱鹏飞
Original assignee: Wuxi Center for Disease Control and Prevention
Current assignee: Wuxi Center for Disease Control and Prevention
Priority date: 2012-12-27
Filing date: 2012-12-27
Publication date: 2013-10-30
Anticipated expiration: 2022-12-27

Abstract

The utility model relates to a solid phase extraction glass casing pipe, and belongs to the technical field of glass instruments. The whole casting pipe comprises a connection pipe, a sample filtration pipe, an absorption agent holding pipe and a suction filtration bottle. The solid phase extraction glass casing pipe has characteristics of low cost, simple structure, convenient operation, avoidance of pollution of plastic products on the sample, and accurate control of a volume ratio of the sample to the absorption agent, and is especially for solid phase extraction of pollutants in large volume water samples.

Description

A kind of SPE glass bushing

Technical field

A kind of SPE glass bushing belongs to the glass apparatus technical field.

Background technology

At present SPE is mainly adopted the commodity post and is loaded voluntarily the solid-phase extraction column dual mode, but the commodity post is because the adsorbent kind is fixed, adsorption capacity is limited, become first-selection so that load voluntarily solid-phase extraction column in many situations, therefore select suitable column jecket very important.Load voluntarily at present hollow glass tube or the plastic tube of the many employings of solid-phase extraction column, the lower end is aided with cotton or miillpore filter as sieve plate, then link to each other with sample feeding pipe by rubber stopper or cork, not only introduce easily exogenous pollution, and have inconvenience in the control of adsorbent volume, sampling volume and sample introduction speed.

The utility model content

The purpose of this utility model is to provide a kind of SPE glass bushing, to overcome the existing shortcoming of loading voluntarily solid-phase extraction column.

The technical solution of the utility model: a kind of SPE glass bushing, this whole sleeve pipe is comprised of tube connector (1), sample filtering pipe (2), adsorbent splendid attire pipe (3) and bottle,suction (4), tube connector when carrying out extracting operation (1) joins with sample filtering pipe (2) upper end, sample filtering pipe (2) lower end and adsorbent splendid attire pipe (3) upper end join, and adsorbent splendid attire pipe (3) lower end and bottle,suction (4) join; Wherein tube connector (1) upper end is used for linking to each other with the polytetrafluoroethylene (PTFE) sample feeding pipe easily; The interior lower end of sample filtering pipe (2) and the interior lower end of adsorbent splendid attire pipe (3) all are fixed with mineral wool, with the convenient control of ground piston sample introduction speed, the mineral wool of the interior lower end of sample filtering pipe (2) filters suspended particulate large in the sample, the mineral wool of the interior lower end of adsorbent splendid attire pipe (3) plays the effect support adsorbent of sieve plate simultaneously; Adsorbent splendid attire pipe (3) is provided with the convenient control of graduation mark adsorbent volume; Bottle,suction (4) is used for removing the remaining sample of adsorbent after sample introduction finishes; Each assembly of sleeve pipe is connected by the frosted mouth, and good seal performance avoids the plastic products packing ring to the pollution of sample simultaneously.

The beneficial effects of the utility model: this SPE is not only with low cost, simple in structure, easy to operate with glass bushing, can avoid again plastic products to the pollution of sample, accurately the volume ratio of Quality control and adsorbent especially is fit to the SPE of pollutant in the water sample with bulk mass.

Description of drawings

Fig. 1 SPE glass bushing schematic diagram.1, tube connector, 2, the sample filtering pipe, 3, adsorbent splendid attire pipe, 4, bottle,suction.

Installation diagram when Fig. 2 SPE is used with glass bushing.

The specific embodiment

This SPE with glass bushing as shown in Figure 1 and Figure 2.

1 one kinds of SPE glass bushings of embodiment, this whole sleeve pipe is comprised of tube connector (1), sample filtering pipe (2), adsorbent splendid attire pipe (3) and bottle,suction (4), tube connector when carrying out extracting operation (1) joins with sample filtering pipe (2) upper end, sample filtering pipe (2) lower end and adsorbent splendid attire pipe (3) upper end join, and adsorbent splendid attire pipe (3) lower end and bottle,suction (4) join; Wherein tube connector (1) upper end is used for linking to each other with the polytetrafluoroethylene (PTFE) sample feeding pipe easily; The interior lower end of sample filtering pipe (2) and the interior lower end of adsorbent splendid attire pipe (3) all are fixed with mineral wool, with the convenient control of ground piston sample introduction speed, the mineral wool of the interior lower end of sample filtering pipe (2) filters suspended particulate large in the sample, the mineral wool of the interior lower end of adsorbent splendid attire pipe (3) plays the effect support adsorbent of sieve plate simultaneously; Adsorbent splendid attire pipe (3) is provided with the convenient control of graduation mark adsorbent volume; Bottle,suction (4) is used for removing the remaining sample of adsorbent after sample introduction finishes; The sleeve pipe each several part is connected by the frosted mouth, and good seal performance avoids the plastic products packing ring to the pollution of sample simultaneously.

Embodiment 2 applicating examples---the SPE application of glass bushing in the water sample incretion interferent is analyzed.

1, the filling of macroreticular resin: the XAD-2 macroreticular resin 100mL that preliminary treatment is good loads to adsorbent splendid attire pipe (3);

2, assembling SPE according to Fig. 2 connects SPE with the polytetrafluoroethylene (PTFE) sample feeding pipe after with glass bushing with glass bushing;

3, with the fixing SPE glass bushing of iron stand, tube connector (1) connects an end of polytetrafluoroethylene (PTFE) sample feeding pipe, and the other end of polytetrafluoroethylene (PTFE) sample feeding pipe is put into water sample, utilizes siphonage to make water sample by the SPE glass bushing;

4, regulate the piston control water sample flow velocity of sample filtering pipe (2) and adsorbent splendid attire pipe (3);

5, after sample introduction finishes bottle,suction (4) is connected to the lower end of adsorbent splendid attire pipe (3), uses vavuum pump will manage interior residual water sample and drain;

6, use solvent the organic matter of enrichment to be carried out wash-out in SPE in glass bushing.

Claims

1. SPE glass bushing, it is characterized in that this whole sleeve pipe is comprised of tube connector (1), sample filtering pipe (2), adsorbent splendid attire pipe (3) and bottle,suction (4), tube connector when carrying out extracting operation (1) joins with sample filtering pipe (2) upper end, sample filtering pipe (2) lower end and adsorbent splendid attire pipe (3) upper end join, and adsorbent splendid attire pipe (3) lower end and bottle,suction (4) join; Wherein tube connector (1) upper end is used for linking to each other with the polytetrafluoroethylene (PTFE) sample feeding pipe easily; The interior lower end of sample filtering pipe (2) and the interior lower end of adsorbent splendid attire pipe (3) all are fixed with mineral wool, with the convenient control of ground piston sample introduction speed, the mineral wool of the interior lower end of sample filtering pipe (2) filters suspended particulate large in the sample, the mineral wool of the interior lower end of adsorbent splendid attire pipe (3) plays the effect support adsorbent of sieve plate simultaneously; Adsorbent splendid attire pipe (3) is provided with the convenient control of graduation mark adsorbent volume; Bottle,suction (4) is used for removing the remaining sample of adsorbent after sample introduction finishes; Each assembly of sleeve pipe is connected by the frosted mouth, and good seal performance avoids the plastic products packing ring to the pollution of sample.