IT1128814B - Refractometer for measuring fluid refractivity in liq. chromatography - Google Patents

Refractometer for measuring fluid refractivity in liq. chromatography

Info

Publication number
IT1128814B
IT1128814B IT67964/80A IT6796480A IT1128814B IT 1128814 B IT1128814 B IT 1128814B IT 67964/80 A IT67964/80 A IT 67964/80A IT 6796480 A IT6796480 A IT 6796480A IT 1128814 B IT1128814 B IT 1128814B
Authority
IT
Italy
Prior art keywords
refractivity
liq
chromatography
refractometer
measurement
Prior art date
Application number
IT67964/80A
Other languages
Italian (it)
Other versions
IT8067964A0 (en
Inventor
William Walter Carson
Norman Frederick Rolfe
Lawrence James Finn
John Steadman Roe
Original Assignee
Waters Associates 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
Priority claimed from US06/050,326 external-priority patent/US4284352A/en
Priority claimed from US06/051,812 external-priority patent/US4283140A/en
Priority claimed from US06/051,811 external-priority patent/US4286873A/en
Priority claimed from US06/059,292 external-priority patent/US4289975A/en
Application filed by Waters Associates Inc filed Critical Waters Associates Inc
Publication of IT8067964A0 publication Critical patent/IT8067964A0/en
Application granted granted Critical
Publication of IT1128814B publication Critical patent/IT1128814B/en

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  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

Refractometer comprises a light source which directs a light beam through a measurement zone to a detector. Movement of the beam in a measurement direction w.r.t. the detector indicates the measurement made in the zone. The position of the beam w.r.t. the zone is modulated through a preselected amplitude which is independent of light beam movements at the light source or between the source and the modulating device to render the measurement independent of beam movements in the modulation direction. Used for measuring changes in the refractivity of a flowing fluid in liq. chromatography.
IT67964/80A 1979-06-20 1980-06-19 Refractometer for measuring fluid refractivity in liq. chromatography IT1128814B (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US06/050,326 US4284352A (en) 1979-06-20 1979-06-20 Heat exchanger for refractometer
US5181079A 1979-06-25 1979-06-25
US06/051,812 US4283140A (en) 1979-06-25 1979-06-25 Spatially homogenizing optical modulator
US06/051,811 US4286873A (en) 1979-06-25 1979-06-25 Refractometer cell with integral lens
US06/059,292 US4289975A (en) 1979-07-20 1979-07-20 Dissipating electrical charge

Publications (2)

Publication Number Publication Date
IT8067964A0 IT8067964A0 (en) 1980-06-19
IT1128814B true IT1128814B (en) 1986-06-04

Family

ID=27535115

Family Applications (1)

Application Number Title Priority Date Filing Date
IT67964/80A IT1128814B (en) 1979-06-20 1980-06-19 Refractometer for measuring fluid refractivity in liq. chromatography

Country Status (1)

Country Link
IT (1) IT1128814B (en)

Also Published As

Publication number Publication date
IT8067964A0 (en) 1980-06-19

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