DE2612418A1 - Packing for chromatographic separation column - is designed to avoid parallel arrangement of fibres - Google Patents
Packing for chromatographic separation column - is designed to avoid parallel arrangement of fibresInfo
- Publication number
- DE2612418A1 DE2612418A1 DE19762612418 DE2612418A DE2612418A1 DE 2612418 A1 DE2612418 A1 DE 2612418A1 DE 19762612418 DE19762612418 DE 19762612418 DE 2612418 A DE2612418 A DE 2612418A DE 2612418 A1 DE2612418 A1 DE 2612418A1
- Authority
- DE
- Germany
- Prior art keywords
- packing
- fibres
- column
- parallel arrangement
- designed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/50—Conditioning of the sorbent material or stationary liquid
- G01N30/56—Packing methods or coating methods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/025—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with wetted adsorbents; Chromatography
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Gas Separation By Absorption (AREA)
Abstract
Description
ir, tlo lm Fauschinaun ,ir, tlo lm Fauschinaun,
frennsäulenpackung aus faserigem Eaterial Zweck: Packungen in Austauschern für Stoff, Energie oder beides, vorwiegend chromatographische Trennsäulen.French column packing made of fibrous material Purpose: packing in exchangers for material, energy or both, mainly chromatographic separation columns.
stand der Technik: Bisher benutzte Faserpackungen erzielten in der Chromatographie praktisch keine brauchbaren resultate, lediglich bei Destillationskolonnen konnte Stahlwolle gute Trennungen erreichen.State of the art: Previously used fiber packs achieved in the Chromatography practically no useful results, only in the case of distillation columns steel wool could achieve good separations.
Als Gründe hierfür können gelten: a) Falsche Werkstoffe, z.B, Plaste, welche die Probenkomponenten aufnehmen können, anstatt inertes Verhalten zu besitzen und den Trennvorgang einer dünnen Schicht stationärer Phase zu überlassen. The reasons for this can be: a) Incorrect materials, e.g. plastics, which the sample components can absorb instead of being inert and leave the separation process to a thin layer of stationary phase.
b) Keine Faserstruktur, sondern Flocken (z.B. bei Teflon) mit unregelmäßiger Form und Größe, die auch zum Verkleben neigen, c) Bei kurzen Faserabschnitten Neigung zur parallelen Zusammenlagerung, wodurch örtliche Strömungshindernisse entstehen und die flüssige stationäre Phase sich an den Beriilirungsstellen anhäuft, anstatt überall einen Film gleicher Dicke zu bilden. b) No fiber structure, but flakes (e.g. with Teflon) with an irregular Shape and size, which also tend to stick, c) In the case of short fiber sections, inclination for parallel storage, which creates local flow obstacles and the liquid stationary phase accumulates at the contact points instead of to form a film of the same thickness everywhere.
d) Relativ große effektive Trennstufenhöhe (= Bodenhöhe) infolge großer freier Weglängen. d) Relatively large effective separation step height (= floor height) as a result of large free path lengths.
Lösung des Problems: Einige der genannten Schwierigkeiten werden durch Verwendung von etalldrähten, Glas- oder Teflonfasern beseitigt. Die Parallellage der Fasern läßt sich durch ein- oder mehrfaches Biegen oder knicken der Einzelfasern vermeiden. Den gleichen Effekt kann man auch durch Verwendung von Geweben (z.B, aus Draht) erreichen, welche vor oder nach dem Stapeln in der Säule (quer zur Strömung richtung) mit stationärer Phase belegt werden können. Die hierbei erwünschte Querdiffusion kann erhöht werden, indem das Drahtgewebe vor dem Belegen und Stapeln gewelltewird. Beim Packen werden die gewellten Stücke zweckmäßig jeweils um 90 ° gedreht, um alle Querrichtungen in gleicher Weise der Diffusion zugänglich zu machen.Solution to Problem: Some of the difficulties mentioned are caused by Eliminated the use of metal wires, glass or Teflon fibers. The parallel position the fibers can be bent or kinked by single or multiple bending or kinking of the individual fibers avoid. The same effect can also be achieved by using fabrics (e.g. made of wire), which can be reached before or after stacking in the column (across the flow direction) can be occupied with stationary phase. The desired transverse diffusion can be increased by corrugating the wire mesh prior to laying and stacking. When packing, the corrugated pieces are expediently rotated by 90 ° to all of them To make transverse directions accessible to diffusion in the same way.
In dieser tqeise hergestellte Trennsäulen für die Gas-chromatogra phie haben zwar immer noch große Trenustufenhöhen, jedoch eine extrem hohe Permeabilität für das Trägergas, sodaß die Anzahl der Trennstufen pro Einheit des Druckabfalls mindestens ehenso gutist wie bei sehr guten mit Kieselguhrpräparaten gefüllten Trennsäulen.In this tqeise produced separation columns for gas chromatography phies still have great trenus heights, but extremely high permeability for the carrier gas, so that the number of separation stages per unit of pressure drop is at least as good as with very good ones with kieselguhr preparations filled columns.
1)ie Trennleistung bricht jedoch erst bei wesentlich größeren Belastungen durch die Menge der Probenkomponenten zusammen. Uas Phasenverhältnis gleicht dabei dem der Kapillarsäulen (ca. 30-So).1) However, the separation performance only breaks with significantly greater loads by the amount of sample components. Uas phase relationship is the same that of the capillary columns (approx. 30-Sun).
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19762612418 DE2612418A1 (en) | 1976-03-24 | 1976-03-24 | Packing for chromatographic separation column - is designed to avoid parallel arrangement of fibres |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19762612418 DE2612418A1 (en) | 1976-03-24 | 1976-03-24 | Packing for chromatographic separation column - is designed to avoid parallel arrangement of fibres |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2612418A1 true DE2612418A1 (en) | 1977-10-06 |
Family
ID=5973280
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19762612418 Pending DE2612418A1 (en) | 1976-03-24 | 1976-03-24 | Packing for chromatographic separation column - is designed to avoid parallel arrangement of fibres |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2612418A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0287922A2 (en) * | 1987-04-22 | 1988-10-26 | The Perkin-Elmer Corporation | Preparative chromatography column |
-
1976
- 1976-03-24 DE DE19762612418 patent/DE2612418A1/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0287922A2 (en) * | 1987-04-22 | 1988-10-26 | The Perkin-Elmer Corporation | Preparative chromatography column |
EP0287922B1 (en) * | 1987-04-22 | 1993-03-10 | The Perkin-Elmer Corporation | Preparative chromatography column |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OHJ | Non-payment of the annual fee |