GB1213900A - Method of treating the internal surface of glass capillaries - Google Patents

Method of treating the internal surface of glass capillaries

Info

Publication number
GB1213900A
GB1213900A GB6181068A GB6181068A GB1213900A GB 1213900 A GB1213900 A GB 1213900A GB 6181068 A GB6181068 A GB 6181068A GB 6181068 A GB6181068 A GB 6181068A GB 1213900 A GB1213900 A GB 1213900A
Authority
GB
United Kingdom
Prior art keywords
gas
vapour
capillary
etching
heated
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.)
Expired
Application number
GB6181068A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Czech Academy of Sciences CAS
Original Assignee
Czech Academy of Sciences CAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Czech Academy of Sciences CAS filed Critical Czech Academy of Sciences CAS
Publication of GB1213900A publication Critical patent/GB1213900A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Surface Treatment Of Glass (AREA)

Abstract

1,213,900. Etching. CESKOSLOVENSKA AKADEMIE VED. 31 Dec., 1968 [15 March; 1968], No. 61810/68. Heading B6J. [Also in Division C1] Glass capillaries for gas chromatography have their inner surfaces etched by gas or vapour, the gas a vapour, at a temperature at which it is unreactive, being introduced into the capillary and heated to a temperature and for a time sufficient to cause the etching. Preferably nitrogen, saturated with the gas, is introduced into the capillary, the capillary sealed at both ends and then heated to a temperature greater than 100‹ C., for example 450‹ C., for at least 30 minutes. After cooling, the capillary is flushed with an inert gas such as nitrogen while heated above 100‹ C. Etching gases suggested are gaseous hydrogen chloride, dichloromethane vapour, trifluoroethyl methyl ether vapour or an organic halogen derivative when on heating gives off gaseous hydrogen chloride or hydrogen fluoride.
GB6181068A 1968-03-15 1968-12-31 Method of treating the internal surface of glass capillaries Expired GB1213900A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS205968 1968-03-15

Publications (1)

Publication Number Publication Date
GB1213900A true GB1213900A (en) 1970-11-25

Family

ID=5356579

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6181068A Expired GB1213900A (en) 1968-03-15 1968-12-31 Method of treating the internal surface of glass capillaries

Country Status (4)

Country Link
DE (1) DE1904518A1 (en)
FR (1) FR2003961A1 (en)
GB (1) GB1213900A (en)
SE (1) SE338646B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2473496A1 (en) * 1980-01-12 1981-07-17 Int Standard Electric Corp METHOD FOR CHEMICAL ATTACHING OF GLASS SURFACES, PARTICULARLY USED FOR THE MANUFACTURE OF OPTICAL WAVEGUIDES
US5152816A (en) * 1989-10-16 1992-10-06 Corning Incorporated Method of enlarging end of capillary tube bore

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5489691A (en) * 1977-12-24 1979-07-16 Nippon Bunko Kogyo Kk Open tube type capillary column for micro rapid liquid chromatography and production thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2473496A1 (en) * 1980-01-12 1981-07-17 Int Standard Electric Corp METHOD FOR CHEMICAL ATTACHING OF GLASS SURFACES, PARTICULARLY USED FOR THE MANUFACTURE OF OPTICAL WAVEGUIDES
US5152816A (en) * 1989-10-16 1992-10-06 Corning Incorporated Method of enlarging end of capillary tube bore
AU629698B2 (en) * 1989-10-16 1992-10-08 Corning Incorporated Method of enlarging end of capillary tube bore

Also Published As

Publication number Publication date
DE1904518A1 (en) 1969-10-02
SE338646B (en) 1971-09-13
FR2003961A1 (en) 1969-11-14

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees