US3669554A - Device for analyzing chromatographic disk in a spectrophotometer - Google Patents

Device for analyzing chromatographic disk in a spectrophotometer Download PDF

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Publication number
US3669554A
US3669554A US59080A US3669554DA US3669554A US 3669554 A US3669554 A US 3669554A US 59080 A US59080 A US 59080A US 3669554D A US3669554D A US 3669554DA US 3669554 A US3669554 A US 3669554A
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United States
Prior art keywords
spectrophotometer
holder
disk
disks
cell compartment
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Expired - Lifetime
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US59080A
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Oswald Horer
Eugen Bujor
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Inst De Virusologie Stefan S N
INSTITUTUL DE VIRUSOLOGIE STEFAN S NICOLAE
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Inst De Virusologie Stefan S N
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    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/251—Colorimeters; Construction thereof
    • G01N21/253—Colorimeters; Construction thereof for batch operation, i.e. multisample apparatus

Definitions

  • the invention refers to a device adaptable to common singleor double-beam spectrophotometers, which permits serial determination of substances impregnated on disks, and which consists in a mechanism for changing and centering of the disks mounted in a holder Within the cell compartment of the spectrophotometer. .A manually or an automatic sample change is made from within or without of the cell compartment of the spectrophotometer.
  • the control disk is mounted in a mobile holder, which can be adapted to the sample holder or in front of the reference beam, depending upon the spectrophotometer type.
  • the present invention refers to a device for serial spectrophotometric determination of substances on the disks, of conventional spectrophotometers.
  • the device according to the invention no longer has these drawbacks since it consists in a mechanism for changing and centering of the disks on the holder that can be mounted directly in the spectrophotometer cell compartment, a lever moving the holder-disk.
  • the lever is controlled by a device with periodic action mounted within or outside the cell compartment of the spectrophotometer and the holder for the control-disk is mounted on the mobile holder disk, or in front of the reference beam.
  • FIG. 1 is a cross-section along the line A-A of FIG. 2;
  • FIG. 2 is a cross-section along the line BB of FIG. 1.
  • a frame 1 sized according 3,669,554 Patented June 13, 1972 to the spectrophotometer cell space and is provided with a light tight lid 2 the latter supports a shaft 3 with a conic centering tip 4.
  • a lever 5 is provided with an external knob 6, pressure upon which pushes shaft 3 into guide 7, compressing a spring -8 and releasing for introduction into or removal through lid 2 of a disk-holder 9.
  • the disk holder is rotated by a lever 10 provided with a hook 11 and centered upon a slit 12 with the help of a fixed hook with a spring 13.
  • An opening 14 is covered by a movable lid 15, the position of disk 9 being checked and the return of lever 10 to the initial position being insured by a spring 16, so that, with each new rotation of disk 9 by manual or automatic displacement of a pin 17 fixed to lever 10 via a slot-like opening 18 covered by a screen 19, one of the paper disks 20 mounted between the two plates 21 and 22 of the holder disk 9 is brought in front of slit 12.
  • a holder 23 with the control disk is introduced into the slit cut in the disk holder 9.
  • This device is adaptable to single beam spectrophotometer, as for instance the Shimadzu QV-SO. In the case of double beam spectrophotometers the control disk holder is introduced in a similar slit in front of the control beam.
  • the device can be fixed to the spectrophotometer, for instance, with a pin on spring 24.
  • the device for spectrophotometric determination according to the invention has the advantage of being adaptable to most types of single or double beam spectrophotometers and can be used both manually and with the aid of an automatic sample changer.
  • a spectrophotometer having a cell-receiving space, and an analysis beam traversing said space, the improvement which comprises:
  • mounting means on said shaft for securing an array of sample disks peripherally thereon; indexing means on said frame co-operating with said mounting means for successively positioning each of said sample disks in the path of an analysis beam;
  • said mounting means includes a pair of annular plates received on an end of said shaft with said array sandwiched between them, said means for removably mounting said array upon said shaft including a lever in said frame for axially shifting said shaft to withdraw said end from a wall of said frame to enable withdrawal of said array, said means for stepping said array including lever swingable about the axis of said shaft and having a tongue engaging the periphery of at least one of said plates.

Abstract

THE INVENTION REFERS TO A DEVICE ADAPTABLE TO COMMON SINGLE- OR DOUBLE-BEAM SPECTROPHOTOMETERS, WHICH PERMITS SERIAL DETERMINATION OF SUBSTANCES IMPREGNATED ON DISKS, AND WHICH CONSISTS IN A MECHANISM FOR CHANGING AND CENTERING OF THE DISKS MOUNTED IN A HOLDER WITHIN THE CELL COMPARTMENT OF THE SPECTROPHOTOMETER. A MANUALLY OR AN AUTOMATIC SAMPLE CHANGE IS MADE FROM WITHIN OR WITHOUT OF THE CELL COMPARTMENT OF THE SPECTROPHOTOMETER. THE CONTROL DISK IS MOUNTED IN THE MOBILE HOLDER, WHICH CAN BE ADAPTED TO THE SAMPLE HOLDER OR IN FRONT OF THE REFERENCE BEAM, DEPENDING UPON THE SPECTROPHOTOMETER TYPE.

Description

June 13, 1972 o. ORER ETAL 3,669,554
DEVICE FOR ANAL NG CHROMATOGRAPHIC DISC I A SPECTROPHOTOMETER Filed July 29, 1970 FIG! United States Patent O 3,669,554 DEVICE FOR ANALYZING CHROMATOGRAPHIC DISK IN A SPECTROPHOTOMETER V Oswald Horer and Eugen Bujor, Bucharest, Rumania, assignors to Iustitutul de Virusologie Stefan S Nicolae, Bucharest, Rumania Filed July 29, 1970, Ser. No. 59,080 Claims priority, application lgumania, Aug. 11, 1969,
Int. Cl. (301; 3/50 US. Cl. 356244 3 Claims ABSTRACT OF THE DISCLOSURE The invention refers to a device adaptable to common singleor double-beam spectrophotometers, which permits serial determination of substances impregnated on disks, and which consists in a mechanism for changing and centering of the disks mounted in a holder Within the cell compartment of the spectrophotometer. .A manually or an automatic sample change is made from within or without of the cell compartment of the spectrophotometer. The control disk is mounted in a mobile holder, which can be adapted to the sample holder or in front of the reference beam, depending upon the spectrophotometer type.
FIELD OF THE INVENTION The present invention refers to a device for serial spectrophotometric determination of substances on the disks, of conventional spectrophotometers.
BACKGROUND OF THE INVENTION SUMMARY OF THE INVENTION The device according to the invention no longer has these drawbacks since it consists in a mechanism for changing and centering of the disks on the holder that can be mounted directly in the spectrophotometer cell compartment, a lever moving the holder-disk. The lever is controlled by a device with periodic action mounted within or outside the cell compartment of the spectrophotometer and the holder for the control-disk is mounted on the mobile holder disk, or in front of the reference beam.
DESCRIPTION OF THE DRAWING The above and other objects, features and advantages of the present invention will become more readily apparent from the following description, reference being made to the accompanying drawing in which FIG. 1 is a cross-section along the line A-A of FIG. 2; and
FIG. 2 is a cross-section along the line BB of FIG. 1.
SPECIFIC DESCRIPTION According to the invention, a frame 1 sized according 3,669,554 Patented June 13, 1972 to the spectrophotometer cell space and is provided with a light tight lid 2 the latter supports a shaft 3 with a conic centering tip 4. A lever 5 is provided with an external knob 6, pressure upon which pushes shaft 3 into guide 7, compressing a spring -8 and releasing for introduction into or removal through lid 2 of a disk-holder 9. The disk holder is rotated by a lever 10 provided with a hook 11 and centered upon a slit 12 with the help of a fixed hook with a spring 13. An opening 14 is covered by a movable lid 15, the position of disk 9 being checked and the return of lever 10 to the initial position being insured by a spring 16, so that, with each new rotation of disk 9 by manual or automatic displacement of a pin 17 fixed to lever 10 via a slot-like opening 18 covered by a screen 19, one of the paper disks 20 mounted between the two plates 21 and 22 of the holder disk 9 is brought in front of slit 12. A holder 23 with the control disk is introduced into the slit cut in the disk holder 9. This device is adaptable to single beam spectrophotometer, as for instance the Shimadzu QV-SO. In the case of double beam spectrophotometers the control disk holder is introduced in a similar slit in front of the control beam. The device can be fixed to the spectrophotometer, for instance, with a pin on spring 24.
The device for spectrophotometric determination according to the invention has the advantage of being adaptable to most types of single or double beam spectrophotometers and can be used both manually and with the aid of an automatic sample changer.
We claim:
1. In a spectrophotometer having a cell-receiving space, and an analysis beam traversing said space, the improvement which comprises:
a frame receivable in said space;
a support shaft mounted on said frame;
mounting means on said shaft for securing an array of sample disks peripherally thereon; indexing means on said frame co-operating with said mounting means for successively positioning each of said sample disks in the path of an analysis beam;
actuating means on said frame for stepping said sample disks past said beam; and
means for removably centering said array with respect to said shaft and enabling removal of said array from said mounting means.
2. The improvement defined in claim 1 wherein said mounting means includes a pair of annular plates received on an end of said shaft with said array sandwiched between them, said means for removably mounting said array upon said shaft including a lever in said frame for axially shifting said shaft to withdraw said end from a wall of said frame to enable withdrawal of said array, said means for stepping said array including lever swingable about the axis of said shaft and having a tongue engaging the periphery of at least one of said plates.
3. The improvement defined in claim 2, further comprising a reference-disk holder mountable on said frame in alignment with a reference beam of said spectrophotometer.
References Cited UNITED STATES PATENTS 2,265,182 12/1941 Mestve 350- 2,511,334 6/1950 Gruber 350134 2,864,279 12/ 1958 Phifer 356244 2,869,414 1/ 1959 Schulz 356-244 WILLIAM L. SIKES, Primary Examiner O. B. CHEW II, Assistant Examiner
US59080A 1969-08-11 1970-07-29 Device for analyzing chromatographic disk in a spectrophotometer Expired - Lifetime US3669554A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO6077669 1969-08-11

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US3669554A true US3669554A (en) 1972-06-13

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DE (1) DE2037411A1 (en)
FR (1) FR2056703A5 (en)
GB (1) GB1324517A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3791745A (en) * 1972-12-26 1974-02-12 Fmc Corp Spectrophotometer attachment for testing yarn dyeing qualities
US3847024A (en) * 1969-07-23 1974-11-12 Rockwell International Corp Simulation and measurement apparatus
EP0050386A1 (en) * 1980-10-21 1982-04-28 Pietro Nardo Apparatus for densitometric measurement of proteic fractions separated by electrophoresis
WO1992021014A1 (en) * 1991-05-22 1992-11-26 Sites Services, Inc. Transmissive system for characterizing materials containing photo-reactive constituents
US6271920B1 (en) 1997-12-19 2001-08-07 Chromatics Color Sciences International, Inc. Methods and apparatus for color calibration and verification

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3847024A (en) * 1969-07-23 1974-11-12 Rockwell International Corp Simulation and measurement apparatus
US3791745A (en) * 1972-12-26 1974-02-12 Fmc Corp Spectrophotometer attachment for testing yarn dyeing qualities
EP0050386A1 (en) * 1980-10-21 1982-04-28 Pietro Nardo Apparatus for densitometric measurement of proteic fractions separated by electrophoresis
WO1992021014A1 (en) * 1991-05-22 1992-11-26 Sites Services, Inc. Transmissive system for characterizing materials containing photo-reactive constituents
US5216487A (en) * 1991-05-22 1993-06-01 Site Services, Inc. Transmissive system for characterizing materials containing photoreactive constituents
US6271920B1 (en) 1997-12-19 2001-08-07 Chromatics Color Sciences International, Inc. Methods and apparatus for color calibration and verification

Also Published As

Publication number Publication date
GB1324517A (en) 1973-07-25
DE2037411A1 (en) 1971-03-11
FR2056703A5 (en) 1971-05-14

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