WO1997047972B1 - Calibrator material for instruments which measure interferents in serum and plasma specimens - Google Patents

Calibrator material for instruments which measure interferents in serum and plasma specimens

Info

Publication number
WO1997047972B1
WO1997047972B1 PCT/CA1997/000418 CA9700418W WO9747972B1 WO 1997047972 B1 WO1997047972 B1 WO 1997047972B1 CA 9700418 W CA9700418 W CA 9700418W WO 9747972 B1 WO9747972 B1 WO 9747972B1
Authority
WO
WIPO (PCT)
Prior art keywords
bilirubin
hemoglobin
calibration
turbidity
biliverdin
Prior art date
Application number
PCT/CA1997/000418
Other languages
French (fr)
Other versions
WO1997047972A1 (en
Filing date
Publication date
Priority claimed from GBGB9612264.3A external-priority patent/GB9612264D0/en
Application filed filed Critical
Priority to DE69732716T priority Critical patent/DE69732716T2/en
Priority to JP50101898A priority patent/JP4158056B2/en
Priority to US09/147,373 priority patent/US6372503B1/en
Priority to EP97924842A priority patent/EP0975976B1/en
Publication of WO1997047972A1 publication Critical patent/WO1997047972A1/en
Publication of WO1997047972B1 publication Critical patent/WO1997047972B1/en
Priority to US10/319,492 priority patent/US7157282B2/en
Priority to US10/721,253 priority patent/US7172902B2/en

Links

Abstract

A quality control material is disclosed which is used to monitor the calibration or used for recalibration of instruments used to screen for interferents in serum or plasma specimens. In particular, the quality control material disclosed is used to monitor instrument calibrations or used for recalibration for instruments which assess the amount of hemolysis, turbidity, bilirubinemia and biliverdinemia, either separately, or any two, or any three, or all four simultaneously, in plasma or serum samples. The quality control material does not contain any blood products such as plasma lipids, bile pigments, or hemoglobin, is stable at room temperature, and is ready for use with up to four constituents.

Claims

AMENDED CLAIMS[received by the International Bureau on 5 December 1997 (05.12.97); original claims 1-12, 20, 22, 23, 31 and 33 amended; remaining claims unchanged (5 pages)!
1. A calibration material, for use in an instrument designed to measure one or more
of hemoglobin, turbidity, bilirubin, or biliverdin, wherein said instrument requires calibration or recalibration, said material comprising one or more separate substances, one of each of which mimics hemoglobin, turbidity, bilirubin, and
biliverdin, respectively, which substances provide a consistent, stable
composition, whether said substances are used alone or in a combination of two or more of said substances and wherein said material may also be used for quality control.
2. The material of claim 1 wherein pH is maintained at a constant value.
3. The material of claim 1 wherein said substance used to mimic hemoglobin is selected from the group consisting of amaranth, phenol red and basic fuchsin.
4. The material of claim 1 wherein said εubstance used to mimic turbidity is
selected from the group consisting of titanium dioxide, copper sulfate and Intralipid™.
5. The material of claim 1 wherein said substance used to mimic bilirubin ia selected from the group consisting of methyl orange, amaranth, and phenol red.
6. The material of claim 1 wherein said substance used to mimic biliverdin is
selected from the group consisting of methylene blue, azure, thionine and toluidine blue O.
7. The material of claim 1 wherein said substance used to mimic hemoglobin is selected from the group consisting of amaranth, phenol red and basic fuchsin; said substance used to mimic turbidity is selected from the group consisting of titanium dioxide, copper sulfate and Intralipid™, said substance used to mimic bilirubin is selected from the group consisting of methyl orange, amaranth, and phenol red; and said substance used to mimic biliverdin is selected from the group consisting of methylene blue, azure, thionine and toluidine blue O.
8. The material of claim 7 wherein pH is maintained at a constant value.
9. A calibration material, for use in an instrument designed to measure one or more of hemoglobin, turbidity, bilirubin, or biliverdin, wherein said instrument requires calibration or recaiibration, said material comprising amaranth, phenol red, copper sulfate, and toluidine blue O in 100 millimoles per liter acetate buffer, and the pH of said material is 3 to 4 and wherein said material may also be used for quality control.
10. The material of claim 9 where amaranth is used to mimic both hemoglobin and bilirubin where low levels of bilirubin are involved.
-15-
11. A calibration material, for use in an instrument designed to measure one or more of hemoglobin, turbidity, bilirubin, or biliverdin, wherein said instrument requires
calibration or recaiibration, said material comprising amaranth, Intralipid™ and methylene blue, or azure, or thionine or toluidine blue O, and sodium bicarbonate and wherein said material may also be used for quality control.
12, A method of monitoring the calibration of an instrument which is designed to measure one or more of hemoglobin, turbidity, bilirubin or biliverdin said method comprising use of a calibration material, said material comprising one or more
separate substances, one of each of which mimics hemoglobin, turbidity,
bilirubin, and biliverdin, respectively, which substances provide a consistent, βtable composition, whether said substances are used alone or in a combination of two or more of said substances and wherein said material may also be used
for quality control.
20. A method for monitoring the calibration of an instrument which is designed to measure one or more of hemoglobin, turbidity, bilirubin or biliverdin said method comprising use of a calibration material, said material comprising amaranth, phenol red, copper sulfate, and toluidine blue O in 100 millimoles per liter acetate buffer, and the pH of said material is 3 to 4 and wherein said material may also be used for quality control.
-16- 2, A method for monitoring the calibration of an instrument which Is designed to measure one or more of hemoglobin, turbidity, bilirubin or biliverdin said method
comprising use of a calibration material, said material comprising amaranth, Intralipid™ and methylene blue, or azure, αr thionine or toluidine blue O, and sodium bicarbonate and wherein said material may also be used for quality
control.
23. A method of recalibrating an instrument which is designed to measure one or more of hemoglobin, turbidity, bilirubin or biliverdin said method comprising use
of a calibration material, said material comprising one or more separate
substanceε, one of each of which mimics hemoglobin, turbidity, bilirubin, and biliverdin, respectively, which substances provide a consistent, stable
composition, whether said substances are used alone or in a combination of two or more of said substances and wherein said material may also be used for quality control.
31. A method of recalibrating an Instrument which is designed to measure one or more of hemoglobin, turbidity, bilirubin or biliverdin said method comprising use of a calibration material, said material comprising amaranth, phenol red, copper
sulfate. and toluidine blue O in 100 millimoles per liter acetate buffer, and the pH of said material Is 3 to 4 and wherein said material may also be used for quality control.
-17-
3. A method of recalibrating an instrument which is designed to measure one or more of hemoglobin, turbidity, bilirubin or biliverdin said method comprising use
of a calibration material, said material comprising amaranth, Iπtrali id™ and methylene blue, or azure, or thionine or toluidine blue O, and sodium bicarbonate and wherein said material may also be used for quality control.
-18- STATEMENT UNDER ARTICLE 19
The amended claims serve to distinguish the Invention over the prior art cited in the
International Search Report by emphasizing the fact that the calibration material may also be used for quality control without having to resort to a different quality control material. The products referred to in the references cited are concerned with quality control materials and cannot also be used as calibrators.
19-
PCT/CA1997/000418 1996-06-12 1997-06-12 Calibrator material for instruments which measure interferents in serum and plasma specimens WO1997047972A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE69732716T DE69732716T2 (en) 1996-06-12 1997-06-12 CALIBRATION DEVICES FOR MEASURING INTERFERENCE IN SERUM AND PLASMA SAMPLES
JP50101898A JP4158056B2 (en) 1996-06-12 1997-06-12 Calibration material for measuring instruments for interfering substances in serum and plasma samples
US09/147,373 US6372503B1 (en) 1996-06-12 1997-06-12 Calibrator material for instruments which measure interferents in serum and plasma specimens
EP97924842A EP0975976B1 (en) 1996-06-12 1997-06-12 Calibrator material for instruments which measure interferents in serum and plasma specimens
US10/319,492 US7157282B2 (en) 1996-06-12 2003-03-07 Quality control material for reagentless measurement of analytes
US10/721,253 US7172902B2 (en) 1996-06-12 2003-11-26 Quality control material for reagentless measurement of analytes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9612264.3A GB9612264D0 (en) 1996-06-12 1996-06-12 Quality control material for monitoring calibration of instruments designed to measure serum and plasma specimen integrity
GB9612264.3 1996-06-12

Related Child Applications (3)

Application Number Title Priority Date Filing Date
US09147373 A-371-Of-International 1997-06-12
US09/147,373 A-371-Of-International US6372503B1 (en) 1996-06-12 1997-06-12 Calibrator material for instruments which measure interferents in serum and plasma specimens
US10/023,869 Continuation-In-Part US6828152B2 (en) 1996-06-12 2001-12-21 Quality control material for reagentless measurement of analytes

Publications (2)

Publication Number Publication Date
WO1997047972A1 WO1997047972A1 (en) 1997-12-18
WO1997047972B1 true WO1997047972B1 (en) 1998-01-15

Family

ID=10795161

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA1997/000418 WO1997047972A1 (en) 1996-06-12 1997-06-12 Calibrator material for instruments which measure interferents in serum and plasma specimens

Country Status (6)

Country Link
US (1) US6372503B1 (en)
EP (1) EP0975976B1 (en)
JP (1) JP4158056B2 (en)
DE (1) DE69732716T2 (en)
GB (1) GB9612264D0 (en)
WO (1) WO1997047972A1 (en)

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