GB822848A - Improvements in or relating to fluorimeters - Google Patents

Improvements in or relating to fluorimeters

Info

Publication number
GB822848A
GB822848A GB10176/57A GB1017657A GB822848A GB 822848 A GB822848 A GB 822848A GB 10176/57 A GB10176/57 A GB 10176/57A GB 1017657 A GB1017657 A GB 1017657A GB 822848 A GB822848 A GB 822848A
Authority
GB
United Kingdom
Prior art keywords
liquid
sample
galvanometer
march
photo
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
GB10176/57A
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.)
GEOFFREY CHARLES COLLINS
Evans Electroselenium Ltd
Original Assignee
GEOFFREY CHARLES COLLINS
Evans Electroselenium Ltd
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 GEOFFREY CHARLES COLLINS, Evans Electroselenium Ltd filed Critical GEOFFREY CHARLES COLLINS
Priority to GB10176/57A priority Critical patent/GB822848A/en
Publication of GB822848A publication Critical patent/GB822848A/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
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence

Landscapes

  • Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Physics & Mathematics (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, Analyzing Materials By Fluorescence Or Luminescence (AREA)

Abstract

822,848. Photo-electric fluorimeters. EVANS ELECTROSELENIUM Ltd., and COLLINS, G. C. March 25, 1958 [March 28, 1957], No. 10176/57. Class 40 (3). In apparatus for measuring the fluorescence of a liquid exposed to ultra-violet light, the outputs of photo-multipliers 2, 22 receiving fluorescent light from a liquid sample 1 under test and from a standard liquid 23, respectively, are compared by applying them to the whole and to a part of a potentiometer 7 adjustable so as to give a zero reading of a galvanometer 9. Suitable filters 19, 20, 21, 24, 25 are employed. By adjustment of resistances 4, 5, 7, the apparatus is set so as to give zero readings of the galvanometer when the potentiometer slide 10 is set to 0 and 100 respectively with a blank sample 12 and a standard sample 11 in position. The liquids 1, 11, 12 are in containers on a rotary member 26 which carries cams to control switches 28, 31.
GB10176/57A 1957-03-28 1957-03-28 Improvements in or relating to fluorimeters Expired GB822848A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB10176/57A GB822848A (en) 1957-03-28 1957-03-28 Improvements in or relating to fluorimeters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10176/57A GB822848A (en) 1957-03-28 1957-03-28 Improvements in or relating to fluorimeters

Publications (1)

Publication Number Publication Date
GB822848A true GB822848A (en) 1959-11-04

Family

ID=9962945

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10176/57A Expired GB822848A (en) 1957-03-28 1957-03-28 Improvements in or relating to fluorimeters

Country Status (1)

Country Link
GB (1) GB822848A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149100A (en) * 1983-11-01 1985-06-05 Genesis An oil discrimination technique
GB2151017A (en) * 1983-11-01 1985-07-10 Genesis Analysis of material from a drillhole
EP0402030A2 (en) * 1989-06-08 1990-12-12 Minnesota Mining And Manufacturing Company Apparatus for detecting fluorescence of a luminescent material
US10852235B2 (en) 2018-03-02 2020-12-01 Ecolab Usa Inc. Ultralow range fluorometer calibration
US11759752B2 (en) 2018-12-21 2023-09-19 Ecolab Usa Inc. Quick tracer injection for monitoring osmosis membrane integrity

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149100A (en) * 1983-11-01 1985-06-05 Genesis An oil discrimination technique
GB2151017A (en) * 1983-11-01 1985-07-10 Genesis Analysis of material from a drillhole
EP0402030A2 (en) * 1989-06-08 1990-12-12 Minnesota Mining And Manufacturing Company Apparatus for detecting fluorescence of a luminescent material
EP0402030A3 (en) * 1989-06-08 1991-07-31 Minnesota Mining And Manufacturing Company Apparatus for detecting fluorescence of a luminescent material
US10852235B2 (en) 2018-03-02 2020-12-01 Ecolab Usa Inc. Ultralow range fluorometer calibration
US11759752B2 (en) 2018-12-21 2023-09-19 Ecolab Usa Inc. Quick tracer injection for monitoring osmosis membrane integrity

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