CN203332607U - Sealed cap of solution for liquid chromatogram - Google Patents
Sealed cap of solution for liquid chromatogram Download PDFInfo
- Publication number
- CN203332607U CN203332607U CN2013202824149U CN201320282414U CN203332607U CN 203332607 U CN203332607 U CN 203332607U CN 2013202824149 U CN2013202824149 U CN 2013202824149U CN 201320282414 U CN201320282414 U CN 201320282414U CN 203332607 U CN203332607 U CN 203332607U
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- solvent
- solution
- solvent bottle
- interior plug
- sealed cap
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Abstract
The utility model discloses a sealed cap of a solution for a liquid chromatogram. The sealed cap comprises an outer cap body (1) which is matched with the outer diameter of the upper mouth of a solvent bottle. The sealed cap is characterized in that an inner stopper (2) matched with the inner diameter of the upper mouth of the solvent bottle is arranged in the outer cap body (1), longitudinal mobile phase channels (3) and inert gas channels (4) are formed in the inner stopper (2), and longitudinal exhaust channels (5) and transverse exhaust channels (6) are further formed in the inner stopper (2), wherein the longitudinal exhaust channels (5) and the transverse exhaust channels (6) are mutually communicated; seal rings (7) are arranged outside the inner stopper (2). The sealed cap of the solution for the liquid chromatogram has the advantages of being simple in structure, ingenious in design and capable of completely sealing the mouth of the solvent bottle and guaranteeing that a solvent will not be cut off.
Description
Technical field
The utility model relates to a kind of seal cover cap, particularly a kind of phase chromatography-use solution seal cover cap.
Background technology
The high performance liquid chromatography isolation technics is the high efficient separation technology grown up in 20th century, because it has the advantages such as precision is high, analysis speed is fast, become at present one of most widely used separate analytical technique, be widely used in the fields such as Pharmaceutical Analysis, environmental monitoring, food security, chemical.
Mobile phase is as the indispensable important component part of liquid chromatogram (LC), from early stage relatively single solvent, develops into gradually the organic solvents such as methyl alcohol, acetonitrile, chloroform, normal hexane, particularly some poisonous, volatile organic solvents.And traditional solution bottle, only can storing solution, its bottle cap can not connect the entrance pipe of liquid chromatogram (LC) infusion pump.Can only directly insert in uncovered solution bottle by infusion pipeline when mounted, volatile organic solvent (mobile phase) will evaporate from bottleneck like this, contaminated environment not only, operating personal is damaged, and along with the volatilization of organic solvent, the composition of solution changes gradually, also can directly affect final operating result.
In recent years, development along with the liquid chromatogram (LC) corollary equipment, famous consumptive material company of several families has released brand-new solution bottle in the world, designed 1/8 general 〞 hydraulic pipe jointing on bottle cap, solved to a certain extent sealing problem, but still exist following problem: if complete sealed solvent bottleneck, though can thoroughly prevent the volatile liquid volatilization, once can export by solution, will form negative pressure in bottle, inhale solvent in hypodynamic situation at infusion pump and there will be cutout, impact analysis result greatly; Simultaneously, when carrying out the assembling of bottle cap, hydraulic pipe also can rotate thereupon together, greatly affects the life-span of hydraulic pipe.
In sum, the seal cover cap that needs now a kind of Novel liquid-phase chromatography experiment that can address the above problem to use.
Summary of the invention
The utility model is in order to solve the existing above-mentioned deficiency of prior art, propose a kind of simple in structure, design ingenious, can be fully by the sealing of solvent bottleneck, and can guarantee that solvent not there will be the phase chromatography-use solution seal cover cap of cutout.
Technical solution of the present utility model is: a kind of phase chromatography-use solution seal cover cap, comprise and the solvent bottle external diameter suitable for reading outer cover 1 that matches, it is characterized in that: be provided with the interior plug 2 matched with solvent bottle internal diameter suitable for reading in described outer cover 1, offer mobile phase passage 3 and unreactable gas passage 4 longitudinally on interior plug 2, also be provided with the vertical exhaust passage 5 and the horizontal exhaust passage 6 that are interconnected on interior plug 2.
Described interior plug 2 outer setting have seal ring 7.
The utility model compared with the existing technology, has following advantage:
The phase chromatography-use solution seal cover cap of this kind of version, it is simple in structure, design ingenious, rationally distributed, it designs a kind of special structure for the existing variety of problems of traditional solvent bottle, it can seal solvent bottle on the one hand, prevent that in it, toxic solvent volatilizees in environment towards periphery, after it can also avoid forming negative pressure in bottle under sealing state on the other hand, cause the situation of solvent cutout to occur.And its manufacture craft is simple, cheap for manufacturing cost, therefore can say that it has possessed multiple advantage, be particularly suitable for applying in the art, its market outlook are very wide.
the accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described.As shown in Figure 1: a kind of phase chromatography-use solution seal cover cap, comprise an outer cover 1 that conduct is basic, outer cover 1 matches with the external diameter suitable for reading of solvent bottle, can snap onto the place suitable for reading of solvent bottle, be provided with interior plug 2 in outer lid body 1, interior plug 2 adopts inert material to make (as polytetrafluoroethylene), simultaneously, plug 2 and solvent bottle internal diameter suitable for reading matches, on interior plug 2, end wise is provided with mobile phase passage 3 and unreactable gas passage 4, mobile phase passage 3 is connected with hydraulic pipe, unreactable gas passage 4 is connected with inert gas container, also be provided with vertical exhaust passage 5 and horizontal exhaust passage 6 simultaneously on interior plug 2, and vertically exhaust passage 5 is interconnected with horizontal exhaust passage 6, due to horizontal exhaust passage 6 horizontally sets, therefore can prevent that dust from falling in solvent bottle, outside at interior plug 2 also is provided with seal ring 7, increases the leak tightness between solvent bottle and interior plug 2.
The phase chromatography-use solution seal cover cap of the utility model embodiment is in when work: interior plug 2 is filled in solvent bottle suitable for reading; seal ring 7 contacts with solvent bottle inwall suitable for reading; outer cover 1 contacts with the outer wall suitable for reading of solvent bottle; mobile phase enters in solvent bottle through mobile phase passage 3; when the needs inert gas shielding, by unreactable gas passage 4, in solvent bottle, fill unreactable gas.When solution is exported, the air pressure outside solvent bottle is greater than the air pressure in solvent bottle, and extraneous air enters in solvent bottle through horizontal exhaust passage 6 and vertical exhaust passage 5 successively, avoids solution the situation of cutout to occur.
Claims (2)
1. a phase chromatography-use solution seal cover cap, comprise and the solvent bottle external diameter suitable for reading outer cover (1) that matches, it is characterized in that: be provided with the interior plug (2) matched with solvent bottle internal diameter suitable for reading in described outer cover (1), offer mobile phase passage (3) and unreactable gas passage (4) longitudinally on interior plug (2), also be provided with the vertical exhaust passage (5) and the horizontal exhaust passage (6) that are interconnected on interior plug (2).
2. phase chromatography-use solution seal cover cap according to claim 1, it is characterized in that: described interior plug (2) outer setting has seal ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202824149U CN203332607U (en) | 2013-05-22 | 2013-05-22 | Sealed cap of solution for liquid chromatogram |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202824149U CN203332607U (en) | 2013-05-22 | 2013-05-22 | Sealed cap of solution for liquid chromatogram |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203332607U true CN203332607U (en) | 2013-12-11 |
Family
ID=49701300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202824149U Expired - Lifetime CN203332607U (en) | 2013-05-22 | 2013-05-22 | Sealed cap of solution for liquid chromatogram |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203332607U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2606759A (en) * | 2021-05-20 | 2022-11-23 | Agilent Technologies Inc | Mobile phase supply device with fluidically normally closed port and cap devices |
-
2013
- 2013-05-22 CN CN2013202824149U patent/CN203332607U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2606759A (en) * | 2021-05-20 | 2022-11-23 | Agilent Technologies Inc | Mobile phase supply device with fluidically normally closed port and cap devices |
| GB2606759B (en) * | 2021-05-20 | 2024-01-17 | Agilent Technologies Inc | Mobile phase supply device with fluidically normally closed port and cap devices |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131211 |
|
| CX01 | Expiry of patent term |