Diesse Chorus fT4 Instrucciones De Uso página 6

5. Check that the Chorus TRIO instrument is set up correctly
(see Operating Manual).
6. Do not alter the bar code placed on the handle of the device
in order to allow correct reading by the instrument.
7. Avoid using self-defrosting freezers for the storage of the
samples.
8. Defective barcodes can be inserted manually in the
instrument (see Operating Manual).
9. Do not expose the devices to strong light or to hypochlorite
vapors during storage and use.
10. The use of strongly hemolyzed, lipemic, icteric samples, of
serum not completely coagulated or of samples presenting
microbial contamination may all constitute sources of error.
11. Do not use the device after the expiry date.
12. Make sure that the instrument is connected to the
Washing Buffer Autoimmunity (Ref. 86004).
5. KIT COMPOSITION
PREPARATION
The kit is sufficient for 36 tests.
DD DEVICES 6 packages each containing 6 devices
Description:
Position 8: Space for application of bar code label
Position 7: Empty
Position 6: MICROPLATE WELL
coated with anti-T4 monoclonal antibodies
Position 5: Empty
Position 4: TMB SUBSTRATE
Contents: Tetramethylbenzidine 0.26 mg/mL and H
stabilized in 0.05 mol/L citrate buffer (pH 3.8)
Position 3: STOP SOLUTION
Contents: sulphuric acid solution 0.3 M
Positon 2: CONJUGATE
Contents: T4 labelled with horse radish peroxidase, in phosphate
buffer containing phenol 0.05% and Bronidox 0.02%.
Position 1: EMPTY WELL
in which undiluted serum must be added
Use: equilibrate a package at room temperature, open the
package and remove the required devices; replace the others in
the bag with the silica gel, expel the air and seal by pressing the
closure. Store at 2-8°C.
CALIBRATOR CALIBRATOR
Contents: Diluted human serum containing fT4 and preservative.
Liquid, ready for use.
CONTROL + POSITIVE CONTROL
Contents: Diluted human serum containing fT4 and preservative.
Liquid, ready for use.
MATERIALS REQUIRED BUT NOT PROVIDED
•
WASHING BUFFER AUTOIMUNITY REF 86004
•
CLEANING SOLUTION 2000 REF 83609
•
SANITIZING SOLUTION REF 83604 - 83608
•
CHORUS NEGATIVE CONTROL/SAMPLE DILUENT REF
83607
•
Chorus TRIO Instrument
AND REAGENT
O 0.01%
2 2
1 x 0.250 mL
1 x 0.500 mL
•
Distilled or deionised water
•
Normal laboratory glassware: cylinders, test-tubes etc.
•
Micropipettes for the accurate collection of 50-200 µl
solution
•
Disposable gloves
•
Sodium Hypochlorite solution (5%)
•
Containers for collection of potentially infectious materials
6. STORAGE AND STABILITY OF REAGENTS
Reagents must be stored at 2/8°C. In the case of storage at
an incorrect temperature the calibration must be repeated
and the run validated using the control serum (see section
9, Test validation).
The expiry date is printed on each component and on the kit
label.
Reagents have a limited stability after opening:
DEVICES
CALIBRATOR
POSITIVE CONTROL
7. SPECIMEN COLLECTION AND STORAGE
The sample is composed of serum collected in the normal
manner from the vein and handled with all precautions dictated
by good laboratory practice.
Possible consequences, in case of use of other biological liquids,
are not known.
The fresh serum may be stored for 2 days at 2/8°C, or frozen for
longer periods at –20°C.
The sample can be thawed only once.
Do not keep the samples in auto-defrosting freezers. Defrosted
samples must be shaken carefully before use.
Heat-inactivation can rise to erroneous results. The quality of the
sample can be seriously affected by microbial contamination
which leads to erroneous results.
8. ASSAY PROCEDURE
1. Open the package (on the side containing the pressure-
closure), remove the number of devices required and seal
the rest in the bag after expelling the air.
2. Check the state of the device according to the indications
reported in chapter 4, Analytical Precautions.
3. Dispense 80 µl of undiluted test serum in well no. 1 of each
device; at each change of batch, use a device for the
calibrator.
4. Place the devices in the Chorus/Chorus TRIO instrument.
Perform the calibration (if necessary) and the test as
reported in the instrument Operating Manual.
9. TEST VALIDATION
Use the control serum to check the validity of the results
obtained. It should be used as reported in the instrument
Operating Manual. If the instrument signals that the control
serum has a value outside the acceptable range, the calibration
must be repeated. The previous results will be automatically
corrected.
If the result of the control serum continues to be outside the
acceptable range, contact the Scientific Support.
Tel: 0039 0577 319554
Fax: 0039 0577 366605
IO-09/335-C IFU 86520 – Ed. 07.06.2018
EN 6/22
8 weeks at 2/8°C
8 weeks at 2/8°C
8 weeks at 2/8°C