US3873217A - Simplified rotor for fast analyzer of rotary cuvette type - Google Patents

Simplified rotor for fast analyzer of rotary cuvette type Download PDF

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Publication number
US3873217A
US3873217A US382240A US38224073A US3873217A US 3873217 A US3873217 A US 3873217A US 382240 A US382240 A US 382240A US 38224073 A US38224073 A US 38224073A US 3873217 A US3873217 A US 3873217A
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United States
Prior art keywords
cuvettes
sample analysis
passageways
distribution
cuvette
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Expired - Lifetime
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US382240A
Inventor
Norman G Anderson
Damous D Willis
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US Atomic Energy Commission (AEC)
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US Atomic Energy Commission (AEC)
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Application filed by US Atomic Energy Commission (AEC) filed Critical US Atomic Energy Commission (AEC)
Priority to US382240A priority Critical patent/US3873217A/en
Priority to CA204,656A priority patent/CA1006378A/en
Priority to GB3106974A priority patent/GB1476744A/en
Priority to BE146600A priority patent/BE817703A/en
Priority to NL7409604A priority patent/NL7409604A/en
Priority to JP49083119A priority patent/JPS5044881A/ja
Priority to ES428453A priority patent/ES428453A1/en
Priority to IL45316A priority patent/IL45316A/en
Priority to FR7425379A priority patent/FR2238929A1/fr
Priority to SE7409540A priority patent/SE402026B/en
Priority to SU7402049247A priority patent/SU574170A3/en
Priority to DK395474A priority patent/DK395474A/da
Priority to CH1018074A priority patent/CH573596A5/xx
Priority to IT25506/74A priority patent/IT1019737B/en
Priority to AU71545/74A priority patent/AU483319B2/en
Priority to BR6107/74A priority patent/BR7406107D0/en
Priority to AT607374A priority patent/ATA607374A/en
Priority to DE2435616A priority patent/DE2435616A1/en
Application granted granted Critical
Publication of US3873217A publication Critical patent/US3873217A/en
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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
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/03—Cuvette constructions
    • G01N21/07—Centrifugal type cuvettes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/10—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components
    • B01F25/104—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components characterised by the arrangement of the discharge opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/71725—Feed mechanisms characterised by the means for feeding the components to the mixer using centrifugal forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/30—Micromixers

Definitions

  • the radially innermost static loading cavities which are part of each sampling station limit the total number of sampling stations because of the lack of available rotor space at the smaller radius.
  • rotors with diameters of 3.5 inches or less are severely limited where three-cavity sampling stations are used.
  • Another, more particular object of the invention is to provide an improved rotor for a fast photometric analyzer of the rotary cuvette type having two or less cavities per sampling station.
  • a simplified rotor design is provided requiring two or less cavities per sampling station.
  • Sample or reagent liquid is loaded directly, by means of a centripetal ramp, into each sample analysis cuvette under static conditions.
  • a single additional static loading cavity is disposed centripetal to each sample analysis cuvette ac cording to one embodiment.
  • Dynamic transfer ofliquid from the static loading cavities to respective cuvettes is effected dynamically by conventional means such as radially extending passageways adapted to discharge tangentially into the cuvettes.
  • static loading of each cuvette is followed by dynamic loading ofa single sample or reagent liquid.
  • Such arrangement permits the greatest number of sample analysis stations for any given size rotor and is espe cially suitable in miniaturized rotors where space restrictions are greatest.
  • FIG. 1 is a top plan view of a rotor made in accordance with the invention.
  • FIG. 2 is a vertical section view of the rotor of FIG. 1.
  • FIG. 3 is a top plan view ofan alternative rotor design suitable for completely static or static and dynamic loading of sample and reagent liquids.
  • FIG. 4 is a vertical section view of the rotor of FIG. 3.
  • FIG. 5 is a bottom plan view of the rotor of FIGS. 3 and 4.
  • FIG. 6 is a top plan view of an alternative rotor design suitable for combined static and dynamic loading.
  • FIG. 7 is a vertical section view of the rotor of FIG. 6.
  • FIG. 8 is a bottom plan view of the rotor of FIGS. 6 and 7.
  • each sampling station I (only two of thirty-two shown) is seen to comprise'a sample analysis cuvette 2 and a single static loading cavity 3.
  • the rotor 4 is a laminar construction with an opaque mid-section 5 sandwiched between top and bottom transparent plates 6 and 7.
  • sample analysis cuvettes 2 and static loading cavities 3 are conveniently formed by means of holes or slots in opaque mid-section 5 with plates 6 and 7 providing end closures.
  • Static loading is accomplished by respectively injecting, using a syringe or other suit able means, sample and reagent liquids into the sample analysis cuvettes 2 and cavities 3 under static conditions.
  • Apertures 8 and 9 are provided in top plate 6 to facilitate such loading.
  • a ramp 1] is provided on the centripetal side of each cuvette 2 to permit direct static loading of liquid into the cuvette without incurring spillage during rotation of the rotor. Any liquid retained on the ramp following static loading of cuvette 2 is dynamically transferred to the cuvette upon rotation of the rotor.
  • Dynamic transfer of liquid from each static loading cavity to a corresponding cuvette 2 occurs through passageway 12 which opens at the top centrifugal side of cavity 3. As shown in FIG. 1, passageway 12 discharges tangentially into cuvette 2 to enhance mixing therein of sample and reagent liquids. A slight outward inclination of each cavity 3 aids in the rapid dynamic transfer of liquids from those cavities.
  • Other conventional means for permitting dynamic transfer of liquid from cavities 3 to cuvettes 2 could be used without departing from the invention such as the capillary passageway and bubble trap described in copending application Ser. No. 354,041 now U.S. Pat. No. 3,795,45 l, of common assignee.
  • FIGS. 3, 4, and 5 show an alternative embodiment of the invention in top, vertical section, and bottom views, respectively.
  • reference numerals are used to designate like features of the alternative rotor embodiment.
  • an annular array of sample analysis cuvettes 2' and static loading cavities 3' is provided with passageways 12' joining corresponding cuvettes and cavities.
  • Loading apertures 8 and 9' discharge directly into cuvette 2 and static loading cavity 3'.
  • a dynamic liquid systemfis also included which may be used where it is desired to perform a multiplicity of tests on a single sample or a single test on a multiplicity of samples, thereby providing a great degree of flexibility to the rotor and making it amenable to virtually any testing situation. Operation of the rotor using static loading only is possible in the manner described above in reference to the embodiment of FIGS. 1 and 2.
  • the dynamic distribution system includes a central distribution chamber 15 provided with a serrated periphery 16 which causes liquid fed therein while the rotor is spinning to be substantially equally distributed to the cuvettes 2'.
  • sample or reagent liquids could be statically loaded in the cuvettes, the rotor spun, and respective reagent or sample liquids dynamically injected to mix with the statically loaded liquids.
  • static loading chamber 3' does not extend completely through opaque mid-section 5 in order that space be available for radial passageways 17.
  • FIGS. 6, 7, and 8 Another embodiment, limited in use to dynamic loading of sample or reagent liquids, is illustrated in FIGS. 6, 7, and 8. Asshown in those figures, an array of sample analysis cuvettes 2" is provided in a manner similar to that of the embodiment of FIGS. 3, 4, and 5. No separate static loading cavities are provided, however, since only one liquid is statically loaded into the cuvettes.
  • a dynamic loading system as described with reference to the embodiment of FIGS. 3, 4, and 5 is provided with like, though double primed, reference numerals designating like features.
  • sample or reagent is statically loaded in the cuvettes followed by dynamic loading of respective reagent or sample liquid through the dynamic loading system. Rotors made in this manner are limited in number of sample analysis stations only by the number of cuvettes which can be spaced about their peripheries.
  • connecting passageway 12 extending from the top of each static loading cavity 3, 3' may be replaced by a capillary passageway and bubble trap in the manner described in US. Pat. No. 3,795,451. It is intended, rather, that the invention be limited only be the scope of the claims attached hereto.
  • An improved rotor for use in a fast photometric analyzer of the rotary cuvette type comprising a diskshaped member of laminated construction with a central opaque disk sandwiched between top and bottom transparent walls, said disk-shaped member defining:
  • d. means for dynamically injecting liquids into said sample analysis cuvettes.
  • said means for dynamically injecting liquids into said sample analysis cuvettes comprises an array of static loading cavities equal in number and disposed centripetal to said sample analysis cuvettes, second loading apertures extending through said top transparent wall in register with each of said static loading cavities and connecting passageways extending between respective cavities in said array of static loading cavities and said sample analysis cuvettes.
  • each of said distribution passageways intersects with adjacent distribution passageways to form a serrated periphery about said distribution chamber.
  • each of said distribution passageways has a capillary-sized portion.
  • said means for dynamically injecting liquids into said sample analysis cuvettes comprises a central distribution chamber and a plurality of distribution passageways communiabout said distribution chamber.
  • each of said distribution passageways has a capillary-sized portion.

Abstract

A simplified rotor design utilizing two or less cavities per sample analysis station is described. Sample or reagent liquids are statically loaded directly into respective sample analysis cuvettes by means of respective apertures and centripetal ramps communicating with each cuvette. According to one embodiment, a single static loading cavity communicates with each sample analysis cuvette in a conventional manner to facilitate dynamic transfer of liquid from that cavity to the cuvette where mixing of sample and reagent liquids and their photometric analysis take place. Dynamic loading of sample or reagent liquids is provided in another embodiment.

Description

United States Patent [191 Anderson et al.
[ 51 Mar. 25, 1975 SIMPLIFIED ROTOR FOR FAST ANALYZER OF ROTARY CUVETTE TYPE [75] Inventors: Norman G. Anderson, Oak Ridge;
Damous D. Willis, Clinton, both of Tenn.
[73] Assignee: The United States of America as represented by the United States Atomic Energy Commission, Washington, DC.
[22] Filed: July 24, 1973 [.21], Appl. N0.: 382,240
3,798,459 3/1974 Anderson et al7 250/576 Primary Examiner-Ronald L. Wibert Assistant Examiner-F. L. Evans Attorney, Agent, or Firm-John A. Horan; David S. Zachry; Stephen D. Hamel [57] ABSTRACT A simplified rotor design utilizing two or less cavities per sample analysis station is described. Sample or reagent liquids are statically loaded directly into respective sample analysis cuvettes by means of respective apertures and centripetal ramps communicating with each cuvette. According to one embodiment, a single static loading cavity communicates with each sample analysis cuvette in a conventional manner to facilitate dynamic transfer of liquid from that cavity to the cuvette where mixing of sample and reagent liquids and their photometric analysis take place. Dynamic load ing of sample or reagent liquids is provided in another [56] References Cited embodiment UNITED STATES PATENTS 3,795,451 3/1974 Mailen 23/259 x 8 Clalms, 3 Drawmg Flgures It! l lX/ l 4 I l i g 5 y i 1' m I I i PATEHTED MAR 2 5 I975 sum 2 or 2 SIMPLIFIED ROTOR FOR FAST ANALYZER OF ROTARY CUVETTE TYPE BACKGROUND OF THE INVENTION The invention described herein relates generally to photometers and more particularly to an improved rotor for fast analyzers of the rotary cuvette type characterized by two or less cavities per sample analysis station. It was made in the course of, or under, a contract with the U.S. Atomic Energy Commission.
The general design and operation of fast analyzers of the rotary cuvette type are generally described in U.S. Pat. No. 3,555,284, issued Jan. 12, 1971, to common assignee in the name of Norman G. Anderson. In the analyzer described in that patent, a central loading disk is provided for statically receiving sample and reagent liquids prior to an analysis operation. An annular array of sample analysis cuvettes is disposed about the central loading disk for receiving the liquids from the loading disk and holding them for photometric analysis. A series of four serially interconnected cavities are required per sampling station: two static loading cavities for receiving sample and reagent liquids, one mixing chamber, and one sample analysis cuvette. Because of space limitations, more recently developed miniaturized fast analyzer designs do not incorporate separate mixing chambers and require only three cavities per sampling station. Typical three-cavity rotor designs are shown in U.S. Pat. No. 3,798,459 issued Mar. I9, 1974, in the name of Anderson, et al., and U.S. Pat. No. 3,795,451, issued Mar. 5, 1974, in the name of Mailen.
The radially innermost static loading cavities which are part of each sampling station limit the total number of sampling stations because of the lack of available rotor space at the smaller radius. In the more recently developed miniaturized fast analyzers identified above, rotors with diameters of 3.5 inches or less are severely limited where three-cavity sampling stations are used.
It is, accordingly, a general object of the invention to provide an improved rotor for a fast photometric analyzer of the rotary cuvette type characterized by a minimum number of cavities per sampling station.
Another, more particular object of the invention is to provide an improved rotor for a fast photometric analyzer of the rotary cuvette type having two or less cavities per sampling station.
SUMMARY OF THE INVENTION In a fast photometric analyzer of the rotary cuvette type, a simplified rotor design is provided requiring two or less cavities per sampling station. Sample or reagent liquid is loaded directly, by means of a centripetal ramp, into each sample analysis cuvette under static conditions. A single additional static loading cavity is disposed centripetal to each sample analysis cuvette ac cording to one embodiment. Dynamic transfer ofliquid from the static loading cavities to respective cuvettes is effected dynamically by conventional means such as radially extending passageways adapted to discharge tangentially into the cuvettes. According to another embodiment, static loading of each cuvette is followed by dynamic loading ofa single sample or reagent liquid. Such arrangement permits the greatest number of sample analysis stations for any given size rotor and is espe cially suitable in miniaturized rotors where space restrictions are greatest.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a top plan view of a rotor made in accordance with the invention.
FIG. 2 is a vertical section view of the rotor of FIG. 1.
FIG. 3 is a top plan view ofan alternative rotor design suitable for completely static or static and dynamic loading of sample and reagent liquids.
FIG. 4 is a vertical section view of the rotor of FIG. 3.
FIG. 5 is a bottom plan view of the rotor of FIGS. 3 and 4.
FIG. 6 is a top plan view of an alternative rotor design suitable for combined static and dynamic loading.
FIG. 7 is a vertical section view of the rotor of FIG. 6.
FIG. 8 is a bottom plan view of the rotor of FIGS. 6 and 7.
DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, initially to FIGS. 1 and 2, each sampling station I (only two of thirty-two shown) is seen to comprise'a sample analysis cuvette 2 and a single static loading cavity 3. The rotor 4 is a laminar construction with an opaque mid-section 5 sandwiched between top and bottom transparent plates 6 and 7. As shown, sample analysis cuvettes 2 and static loading cavities 3 are conveniently formed by means of holes or slots in opaque mid-section 5 with plates 6 and 7 providing end closures. Static loading is accomplished by respectively injecting, using a syringe or other suit able means, sample and reagent liquids into the sample analysis cuvettes 2 and cavities 3 under static conditions. Apertures 8 and 9 are provided in top plate 6 to facilitate such loading. A ramp 1] is provided on the centripetal side of each cuvette 2 to permit direct static loading of liquid into the cuvette without incurring spillage during rotation of the rotor. Any liquid retained on the ramp following static loading of cuvette 2 is dynamically transferred to the cuvette upon rotation of the rotor.
Dynamic transfer of liquid from each static loading cavity to a corresponding cuvette 2 occurs through passageway 12 which opens at the top centrifugal side of cavity 3. As shown in FIG. 1, passageway 12 discharges tangentially into cuvette 2 to enhance mixing therein of sample and reagent liquids. A slight outward inclination of each cavity 3 aids in the rapid dynamic transfer of liquids from those cavities. Other conventional means for permitting dynamic transfer of liquid from cavities 3 to cuvettes 2 could be used without departing from the invention such as the capillary passageway and bubble trap described in copending application Ser. No. 354,041 now U.S. Pat. No. 3,795,45 l, of common assignee.
FIGS. 3, 4, and 5 show an alternative embodiment of the invention in top, vertical section, and bottom views, respectively. Like, though primed, reference numerals are used to designate like features of the alternative rotor embodiment. As in the embodiment of FIGS. I and 2, an annular array of sample analysis cuvettes 2' and static loading cavities 3' is provided with passageways 12' joining corresponding cuvettes and cavities. Loading apertures 8 and 9' discharge directly into cuvette 2 and static loading cavity 3'. A dynamic liquid systemfis also included which may be used where it is desired to perform a multiplicity of tests on a single sample or a single test on a multiplicity of samples, thereby providing a great degree of flexibility to the rotor and making it amenable to virtually any testing situation. Operation of the rotor using static loading only is possible in the manner described above in reference to the embodiment of FIGS. 1 and 2.
The dynamic distribution system includes a central distribution chamber 15 provided with a serrated periphery 16 which causes liquid fed therein while the rotor is spinning to be substantially equally distributed to the cuvettes 2'. Radial passageways 17, which have capillary sized portions 18 to prevent flow from the cuvettes under static conditions, extend between distribution chamber 15 and each cuvette. In operation, either sample or reagent liquids could be statically loaded in the cuvettes, the rotor spun, and respective reagent or sample liquids dynamically injected to mix with the statically loaded liquids. As shown, static loading chamber 3' does not extend completely through opaque mid-section 5 in order that space be available for radial passageways 17.
Another embodiment, limited in use to dynamic loading of sample or reagent liquids, is illustrated in FIGS. 6, 7, and 8. Asshown in those figures, an array of sample analysis cuvettes 2" is provided in a manner similar to that of the embodiment of FIGS. 3, 4, and 5. No separate static loading cavities are provided, however, since only one liquid is statically loaded into the cuvettes. A dynamic loading system as described with reference to the embodiment of FIGS. 3, 4, and 5 is provided with like, though double primed, reference numerals designating like features. In operation, sample or reagent is statically loaded in the cuvettes followed by dynamic loading of respective reagent or sample liquid through the dynamic loading system. Rotors made in this manner are limited in number of sample analysis stations only by the number of cuvettes which can be spaced about their peripheries.
The foregoing description of three embodiments of the invention is offered for illustrative purposes only and should not be interpreted in a strictly limiting sense. For example, connecting passageway 12 extending from the top of each static loading cavity 3, 3' may be replaced by a capillary passageway and bubble trap in the manner described in US. Pat. No. 3,795,451. It is intended, rather, that the invention be limited only be the scope of the claims attached hereto.
What is claimed is:
1. An improved rotor for use in a fast photometric analyzer of the rotary cuvette type comprising a diskshaped member of laminated construction with a central opaque disk sandwiched between top and bottom transparent walls, said disk-shaped member defining:
a, circular array of sample analysis cuvettes extending through said central opaque disk for receiving and holding samples and reagents for photometric analysis;
b. a circular array of outwardly and downwardly extending ramps defining cuvette loading passageways, each of said ramps being in communication with the top end of the centripetal side of a respective cuvette in said array of sample analysis cuvettes;
c. a circular array of first loading apertures extending through said top transparent wall in axial register and liquid communication with respective ramps in said circular array of ramps for facilitating the static loading of liquid in said cuvettes; and
d. means for dynamically injecting liquids into said sample analysis cuvettes.
2. The improved rotor of claim 1 wherein said means for dynamically injecting liquids into said sample analysis cuvettes comprises an array of static loading cavities equal in number and disposed centripetal to said sample analysis cuvettes, second loading apertures extending through said top transparent wall in register with each of said static loading cavities and connecting passageways extending between respective cavities in said array of static loading cavities and said sample analysis cuvettes.
3. The improved rotor of claim 2 wherein said diskshaped member further defines a central distribution chamber and a plurality of distribution passageways communicating between said distribution chamber and respective cuvettes in said circular array of sample analysis cuvettes.
4. The improvement of claim 3 wherein each of said distribution passageways intersects with adjacent distribution passageways to form a serrated periphery about said distribution chamber.
5. The improvement of claim 3 wherein each of said distribution passageways has a capillary-sized portion.
6. The improved rotor of claim 1 wherein said means for dynamically injecting liquids into said sample analysis cuvettes comprises a central distribution chamber and a plurality of distribution passageways communiabout said distribution chamber.
8. The improvement of claim 6 wherein each of said distribution passageways has a capillary-sized portion.

Claims (8)

1. An improved rotor for use in a fast photometric analyzer of the rotary cuvette type comprising a disk-shaped member of laminated construction with a central opaque disk sandwiched between top and bottom transparent walls, said disk-shaped member defining: a, circular array of sample analysis cuvettes extending through said central opaque disk for receiving and holding samples and reagents for photometric analysis; b. a circular array of outwardly and downwardly extending ramps defining cuvette loading passageways, each of said ramps being in communication with the top end of the centripetal side of a respective cuvette in said array of sample analysis cuvettes; c. a circular array of first loading apertures extending through said top transparent wall in axial register and liquid communication with respective ramps in said circular array of ramps for facilitating the static loading of liquid in said cuvettes; and d. means for dynamically injecting liquids into said sample analysis cuvettes.
2. The improved rotor of claim 1 wherein said means for dynamically injecting liquids into said sample analysis cuvettes comprises an array of static loading cavities equal in number and disposed centripetal to said sample analysis cuvettes, second loading apertures extending through said top transparent wall in register with each of said static loading cavities and connecting passageways extending between respective cavities in said array of static loading cavities and said sample analYsis cuvettes.
3. The improved rotor of claim 2 wherein said disk-shaped member further defines a central distribution chamber and a plurality of distribution passageways communicating between said distribution chamber and respective cuvettes in said circular array of sample analysis cuvettes.
4. The improvement of claim 3 wherein each of said distribution passageways intersects with adjacent distribution passageways to form a serrated periphery about said distribution chamber.
5. The improvement of claim 3 wherein each of said distribution passageways has a capillary-sized portion.
6. The improved rotor of claim 1 wherein said means for dynamically injecting liquids into said sample analysis cuvettes comprises a central distribution chamber and a plurality of distribution passageways communicating between said distribution chamber and respective cuvettes in said circular array of sample analysis cuvettes.
7. The improved rotor of claim 6 wherein each of said distribution passageways intersects with adjacent distribution passageways to form a serrated periphery about said distribution chamber.
8. The improvement of claim 6 wherein each of said distribution passageways has a capillary-sized portion.
US382240A 1973-07-24 1973-07-24 Simplified rotor for fast analyzer of rotary cuvette type Expired - Lifetime US3873217A (en)

Priority Applications (18)

Application Number Priority Date Filing Date Title
US382240A US3873217A (en) 1973-07-24 1973-07-24 Simplified rotor for fast analyzer of rotary cuvette type
CA204,656A CA1006378A (en) 1973-07-24 1974-07-12 Simplified rotor for fast analyzer of rotary cuvette type
GB3106974A GB1476744A (en) 1973-07-24 1974-07-12 Simplified rotor for fast analyzer of rotary cuvette type
BE146600A BE817703A (en) 1973-07-24 1974-07-16 SIMPLIFIED ROTOR FOR RAPID ANALYZER WITH ROTATING CUPS
NL7409604A NL7409604A (en) 1973-07-24 1974-07-16 ROTOR FOR A RAPID ANALYSIS OF THE TYPE EQUIPPED WITH ROTATING CUVETTES.
JP49083119A JPS5044881A (en) 1973-07-24 1974-07-19
ES428453A ES428453A1 (en) 1973-07-24 1974-07-20 Simplified rotor for fast analyzer of rotary cuvette type
SE7409540A SE402026B (en) 1973-07-24 1974-07-22 ROTOR FOR USE IN A FAST ROTARY CYVET TYPE ANALYZER
IL45316A IL45316A (en) 1973-07-24 1974-07-22 Simplified rotor for fast analyzer of rotary cuvette type
FR7425379A FR2238929A1 (en) 1973-07-24 1974-07-22
DK395474A DK395474A (en) 1973-07-24 1974-07-23
CH1018074A CH573596A5 (en) 1973-07-24 1974-07-23
IT25506/74A IT1019737B (en) 1973-07-24 1974-07-23 SIMPLIFIED ROTOR FOR FAST ANALYZERS OF THE ROTATING BOWL TYPE
SU7402049247A SU574170A3 (en) 1973-07-24 1974-07-23 High-speed analyzer rotor
AU71545/74A AU483319B2 (en) 1973-07-24 1974-07-23 Simplified rotor for fast analyzer of rotary cuvette type
BR6107/74A BR7406107D0 (en) 1973-07-24 1974-07-24 PERFECTED ROTOR FOR USE IN A FAST PHOTOMETRIC ANALYZER OF THE ROTATING BUCKET TYPE
AT607374A ATA607374A (en) 1973-07-24 1974-07-24 ROTOR FOR A QUICK ANALYZER OF THE ROTARY CUVETTE DESIGN
DE2435616A DE2435616A1 (en) 1973-07-24 1974-07-24 ROTOR FOR A QUICK ANALYZER OF THE ROTATING CUVETTE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US382240A US3873217A (en) 1973-07-24 1973-07-24 Simplified rotor for fast analyzer of rotary cuvette type

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US3873217A true US3873217A (en) 1975-03-25

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US (1) US3873217A (en)
JP (1) JPS5044881A (en)
AT (1) ATA607374A (en)
BE (1) BE817703A (en)
BR (1) BR7406107D0 (en)
CA (1) CA1006378A (en)
CH (1) CH573596A5 (en)
DE (1) DE2435616A1 (en)
DK (1) DK395474A (en)
ES (1) ES428453A1 (en)
FR (1) FR2238929A1 (en)
GB (1) GB1476744A (en)
IL (1) IL45316A (en)
IT (1) IT1019737B (en)
NL (1) NL7409604A (en)
SE (1) SE402026B (en)
SU (1) SU574170A3 (en)

Cited By (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3951608A (en) * 1975-01-22 1976-04-20 Ernest Trod Mixing cuvette and timing turntable for providing reaction mixtures
US4035156A (en) * 1977-01-21 1977-07-12 The United States Of America As Represented By The United States Energy Research And Development Administration Filter type rotor for multistation photometer
FR2354140A1 (en) * 1976-06-09 1978-01-06 Electro Nucleonics SET OF BOWLS TO BE DISPOSED OF AFTER USE
USRE30391E (en) * 1976-02-23 1980-09-02 Abbott Laboratories Chemical analysis cuvette
US4225558A (en) * 1978-09-19 1980-09-30 Honeywell Inc. Fluid sample test apparatus and fluid sample cell for use therein
US4226531A (en) * 1977-08-29 1980-10-07 Instrumentation Laboratory Inc. Disposable multi-cuvette rotor
US4237234A (en) * 1978-10-30 1980-12-02 Meunier Henry E Device for use in the study of biochemical or enzymatic reactions produced by living organisms
US4239853A (en) * 1979-01-22 1980-12-16 Bradley Rex L Antibiotic testing method and apparatus having a channelized reservoir
EP0039825A1 (en) * 1980-05-05 1981-11-18 F. HOFFMANN-LA ROCHE & CO. Aktiengesellschaft Cuvette rotor for analyzer and method of operation of said cuvette rotor
US4314970A (en) * 1980-08-27 1982-02-09 Instrumentation Laboratory Inc. Analysis system
US4314968A (en) * 1979-10-26 1982-02-09 Jean Guigan Simultaneous analysis apparatus
US4373812A (en) * 1981-03-25 1983-02-15 Instrumentation Laboratory Inc. Cuvette assembly
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US4431307A (en) * 1981-11-19 1984-02-14 Labsystems Oy Set of cuvettes
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DK395474A (en) 1975-03-03
SU574170A3 (en) 1977-09-25
ATA607374A (en) 1979-05-15
AU7154574A (en) 1976-01-29
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CA1006378A (en) 1977-03-08
IL45316A (en) 1977-05-31
BE817703A (en) 1974-11-18
CH573596A5 (en) 1976-03-15
NL7409604A (en) 1975-01-28
FR2238929A1 (en) 1975-02-21
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SE7409540L (en) 1975-01-27
BR7406107D0 (en) 1975-05-13

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