GB1435061A - Apparatus for precisely controlled dilution of fluid samples - Google Patents

Apparatus for precisely controlled dilution of fluid samples

Info

Publication number
GB1435061A
GB1435061A GB1909774A GB1909774A GB1435061A GB 1435061 A GB1435061 A GB 1435061A GB 1909774 A GB1909774 A GB 1909774A GB 1909774 A GB1909774 A GB 1909774A GB 1435061 A GB1435061 A GB 1435061A
Authority
GB
United Kingdom
Prior art keywords
fluid
passage
dilution
flows
polytetrafluoroethylene
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
GB1909774A
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.)
Meloy Laboratories Inc
Original Assignee
Meloy Laboratories Inc
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 Meloy Laboratories Inc filed Critical Meloy Laboratories Inc
Priority to GB1909774A priority Critical patent/GB1435061A/en
Publication of GB1435061A publication Critical patent/GB1435061A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/38—Diluting, dispersing or mixing samples
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/38—Diluting, dispersing or mixing samples
    • G01N2001/381—Diluting, dispersing or mixing samples by membrane diffusion; Permeation tubes

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

1435061 Dilution of gaseous sample for analysis MELOY LABORATORIES Inc 1 May 1974 19097/74 Heading G1B Apparatus for continuous dilution of fluid, samples, as for example in the dilution of flue gas samples for SO 2 determination, comprises a housing 12, 14 having a fluid-permeable wall 60 separating fluid spaces 48, 50 at opposite sides of the wall, passages 28 or 30 connected to one of the spaces for the supply and exhaust of fluid, the passage having a thickness cross-dimension perpendicular to the flow direction therein that is very small relative to the remaining cross-dimensions of the passage so that fluid flows therethrough as a thin sheet, and means which may comprise a heating coil 77 for regulating the temperature of the fluid in the supply passage. In the embodiment shown, source gas enters at 40, flows through the annular passage 28 between cup-shaped core member 26 and its housing 12, and is pumped away via 54. Carrier gas enters at 42, flows through the corresponding annular passage 30 and is pumped away via 56. An analyzer device may be connected between port 56 and the pump to determine the concentration of diffused gas in the carrier stream Fig. 6, (not shown). The membrane which may be of polytetrafluoroethylene may be supported on both sides by polytetrafluoroethylene-coated stainless steel mesh screens Figs. 4 and 5, (not shown).
GB1909774A 1974-05-01 1974-05-01 Apparatus for precisely controlled dilution of fluid samples Expired GB1435061A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1909774A GB1435061A (en) 1974-05-01 1974-05-01 Apparatus for precisely controlled dilution of fluid samples

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1909774A GB1435061A (en) 1974-05-01 1974-05-01 Apparatus for precisely controlled dilution of fluid samples

Publications (1)

Publication Number Publication Date
GB1435061A true GB1435061A (en) 1976-05-12

Family

ID=10123735

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1909774A Expired GB1435061A (en) 1974-05-01 1974-05-01 Apparatus for precisely controlled dilution of fluid samples

Country Status (1)

Country Link
GB (1) GB1435061A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111624085A (en) * 2020-07-29 2020-09-04 天津中新科炬生物制药股份有限公司 Sample diluting device and reagent card for detecting novel coronavirus antibody

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111624085A (en) * 2020-07-29 2020-09-04 天津中新科炬生物制药股份有限公司 Sample diluting device and reagent card for detecting novel coronavirus antibody

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee