CS267115B1 - Process for preparing a frit restrictor for chromatography with supercritical mobile phase - Google Patents
Process for preparing a frit restrictor for chromatography with supercritical mobile phase Download PDFInfo
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- CS267115B1 CS267115B1 CS878276A CS827687A CS267115B1 CS 267115 B1 CS267115 B1 CS 267115B1 CS 878276 A CS878276 A CS 878276A CS 827687 A CS827687 A CS 827687A CS 267115 B1 CS267115 B1 CS 267115B1
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- capillary
- mobile phase
- chromatography
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- frit
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Abstract
podstatou způsobu je, že část, například o délce 1 až 10 cm, křemenné kapiláry se vyplní vodním sklem a vyplněný konec kapiláry se uzavře pro průchod roztoku vodního skla, například vytvořením kousku frity, nebo zatavením či zalepením. Pote se celá kapilára zahřívá na teplotu 200 až 500 °C a počáteční uzavřený konec kapiláry se odstraňuje. Tyto restriktory jsou nezbytné pro využití beztlakovýoh detektorů v ohromatografii s nadkritiokou mobilní fází.The essence of the method is that a part, for example 1 to 10 cm long, of a quartz capillary is filled with water glass and the filled end of the capillary is closed for the passage of the water glass solution, for example by forming a piece of frit, or by sealing or gluing. Then the entire capillary is heated to a temperature of 200 to 500 °C and the initial closed end of the capillary is removed. These restrictors are necessary for the use of pressureless detectors in chromatography with a supercritical mobile phase.
Description
Podmínky pro vytvrzení frity, to je rychlost posunu kruhovou píckou a LepioLu pícky, je nutno nastavit tak, aby výsledná frita byla homogenní, bez zbytku kapalného vodního skla, a aby přitom nedošlo k poškození vnějšího ochranného povlaku kapiláry.The conditions for curing the frit, i.e. the rate of movement of the round furnace and the LepioL furnace, must be adjusted so that the resulting frit is homogeneous, with no residual liquid waterglass, while avoiding damage to the capillary outer coating.
Uzávěr kapiláry je možno rovněž vytvořit zatavením, zalepením a podobně.The capillary closure can also be formed by sealing, sealing or the like.
Popsaný způsob přípravy fritového restriktoru je určen ke zhotovení zařízení, které redukuje tlak nadkritické mobilní fáze a umožňuje tak například převod analyzovaných sloučenin z chromatografické kolony nebo z extraktoru do beztlakových detektorů.The described method of preparing a frit restrictor is intended to produce a device that reduces the pressure of the supercritical mobile phase and thus allows, for example, the transfer of the analyzed compounds from the chromatographic column or from the extractor to non-pressure detectors.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS878276A CS267115B1 (en) | 1987-11-18 | 1987-11-18 | Process for preparing a frit restrictor for chromatography with supercritical mobile phase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS878276A CS267115B1 (en) | 1987-11-18 | 1987-11-18 | Process for preparing a frit restrictor for chromatography with supercritical mobile phase |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS827687A1 CS827687A1 (en) | 1989-05-12 |
| CS267115B1 true CS267115B1 (en) | 1990-02-12 |
Family
ID=5433139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS878276A CS267115B1 (en) | 1987-11-18 | 1987-11-18 | Process for preparing a frit restrictor for chromatography with supercritical mobile phase |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS267115B1 (en) |
-
1987
- 1987-11-18 CS CS878276A patent/CS267115B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS827687A1 (en) | 1989-05-12 |
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