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GB1281748A - Method of and apparatus for determining the presence and/or quantity of a fluorescent substance in a volume in water - Google Patents

Method of and apparatus for determining the presence and/or quantity of a fluorescent substance in a volume in water

Info

Publication number
GB1281748A
GB1281748A GB42828/69A GB4282869A GB1281748A GB 1281748 A GB1281748 A GB 1281748A GB 42828/69 A GB42828/69 A GB 42828/69A GB 4282869 A GB4282869 A GB 4282869A GB 1281748 A GB1281748 A GB 1281748A
Authority
GB
United Kingdom
Prior art keywords
fluorescence
detecting
water
volume
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
GB42828/69A
Inventor
Frank Frungel
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.)
Impulsphysik GmbH
Original Assignee
Impulsphysik GmbH
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 Impulsphysik GmbH filed Critical Impulsphysik GmbH
Priority to GB42828/69A priority Critical patent/GB1281748A/en
Publication of GB1281748A publication Critical patent/GB1281748A/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
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/85—Investigating moving fluids or granular solids
    • G01N21/8507—Probe photometers, i.e. with optical measuring part dipped into fluid sample
    • 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)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)

Abstract

1281748 Photo-electric detection of fluorescence IMPULSPHYSIK GmbH 28 Aug 1969 42828/69 Heading G1A [Also in Division C4] Apparatus for detecting the presence and/or quantity of a fluorescing substance in a particular volume in water comprises a pulsed discharge tube 1, producing regular flashes, which are directed, via a filter 5 which includes passage of light of the fluorescence wavelengths, comprising water, and a detecting arrangement, comprising a lens 10, a filter 11 to pass the fluorescence wavelengths and a photo-multiplier 12 (or photodiode), detecting fluorescence in the irradiated volume. The whole apparatus together with associated circuitry and recording apparatus, is contained in a pressurized casing 20, which may be immersed in the sea for long periods, or towed behind a ship. The detector circuit comprises amplifiers 15, 16, an amplitude discriminator, if required, and a tape recorder. This records the time which elapses (from clock 19), depth information and the fluorescence intensities obtained. The source or detector circuitry are powered by long-life battery 21 and the source energized by means of capacitor 2. Typical applications are measuring the flow-rate in e.g. a river by fluorescence measurements after e.g. rhodamine, has been added to the flow, or measurement of plant life growth by use of the fluorescence properties of chlorophyl in phytoplankton.
GB42828/69A 1969-08-28 1969-08-28 Method of and apparatus for determining the presence and/or quantity of a fluorescent substance in a volume in water Expired GB1281748A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB42828/69A GB1281748A (en) 1969-08-28 1969-08-28 Method of and apparatus for determining the presence and/or quantity of a fluorescent substance in a volume in water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB42828/69A GB1281748A (en) 1969-08-28 1969-08-28 Method of and apparatus for determining the presence and/or quantity of a fluorescent substance in a volume in water

Publications (1)

Publication Number Publication Date
GB1281748A true GB1281748A (en) 1972-07-12

Family

ID=10426157

Family Applications (1)

Application Number Title Priority Date Filing Date
GB42828/69A Expired GB1281748A (en) 1969-08-28 1969-08-28 Method of and apparatus for determining the presence and/or quantity of a fluorescent substance in a volume in water

Country Status (1)

Country Link
GB (1) GB1281748A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2496265A1 (en) * 1980-12-15 1982-06-18 Conoco Inc METHOD AND DEVICE FOR DETECTING HYDROCARBONS IN A BODY OF WATER
GB2181232A (en) * 1985-10-04 1987-04-15 Gen Electric Plc Measuring liquid volume
WO2006007883A1 (en) * 2004-03-05 2006-01-26 Smart Light Devices Ireland Limited Fluorometer
ES2374885A1 (en) * 2011-07-11 2012-02-23 Adasa Sistemas, S.A.U. Module and procedure for measuring chlorophyll and other pigments through the determination of discrete lambd fluorescence for water quality control applications. (Machine-translation by Google Translate, not legally binding)
EP3073246A1 (en) 2015-03-27 2016-09-28 National Institute of Biology Method and system for simultaneous detection of micro-particle concentration in suspension and their morphological and physiological traits

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2496265A1 (en) * 1980-12-15 1982-06-18 Conoco Inc METHOD AND DEVICE FOR DETECTING HYDROCARBONS IN A BODY OF WATER
GB2150283A (en) * 1980-12-15 1985-06-26 Conoco Inc Underwater detection of hydrocarbons
GB2181232A (en) * 1985-10-04 1987-04-15 Gen Electric Plc Measuring liquid volume
GB2181232B (en) * 1985-10-04 1989-09-13 Gen Electric Plc Measuring liquid volume
WO2006007883A1 (en) * 2004-03-05 2006-01-26 Smart Light Devices Ireland Limited Fluorometer
ES2374885A1 (en) * 2011-07-11 2012-02-23 Adasa Sistemas, S.A.U. Module and procedure for measuring chlorophyll and other pigments through the determination of discrete lambd fluorescence for water quality control applications. (Machine-translation by Google Translate, not legally binding)
EP3073246A1 (en) 2015-03-27 2016-09-28 National Institute of Biology Method and system for simultaneous detection of micro-particle concentration in suspension and their morphological and physiological traits
WO2016156281A1 (en) 2015-03-27 2016-10-06 National Institute of Biology Method and system for simultaneous detection of micro-particle concentration in suspension and their morphological and physiological traits

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years