ORDER
INFORMATION
| Catalog No: |
Product Description: |
Pack Size: |
| MTP 100 |
CSF / URINE TOTAL
PROTEIN |
2 X 50 ML |
| MTP 200 |
CSF / URINE TOTAL PROTEIN |
2 X 100 ML |
METHOD
Colorimetric
PRINCIPLE
The Total Protein test for Urine and CSF is a dye binding colorimetric
method utilising pyrogallol red-molybdate complex, and modified to
equalize the reactivities of albumin and gamma - globulin, and provide
good precision and linearity. The pyrogallol red dye combines with
maximum absorbance at 467 nm. When this complex is combined with protein
in acidic conditions, a blue - purple color develops with an increase
in absorption at 598 nm.
SAMPLE
Urine samples collected randomly or 24 hr specimens may be used. Store
at 2-8°C or freeze the specimens till assayed. CSF should be free
of hemolysis. Centrifuge any specimen containing red blood cells or
particulate matter. CSF may be stored at 2-8°C for several days
until assay.
REFERENCE VALUES
| CSF (Lumbar) |
8 - 43 mg/dl |
| Urine |
28 - 141 mg/day |
| Random urine |
1 - 14 mg/dl |
The reference values are to be considered as indicative only. Every
laboratory should establish its own normal ranges.
QUALITY CONTROL :
Accutestrol N - H
REAGENTS
Reagent I : Pyrogallol red reagent
Protein standard : 100 mg/dl
|
REFERENCES Teitz N.W.,
Textbook of Clinical Chemistry. W.B. Saunders Co. (1986) pp 602-613.
Dilena B.A., Penberthy L.A., Fraser C.G. , Clin Chem. (1983) 29 :
356 - 360
REAGENT PREPARATION
The reagents are ready to use
STABILITY: Upto expiry date when stored at 2-8°C.
AUTOMATED PARAMETERS
| Wave length |
600 nm |
| Reaction Temperature |
37°C |
| Reaction Type |
End Point |
| Cuvette |
1 cm light path |
| Measurement |
Against reagent blank |
| Sample/Reagent Ratio |
1:50 |
| Incubation |
10 minutes |
| Low Normal (CSF) |
8 mg/dl |
| High Normal (CSF) |
43 mg/dl |
| Linearity |
200 mg/dl |
MANUAL PROCEDURE
PIPETTE INTO TEST TUBE
| |
BLANK |
STD |
SAMPLE |
| Sample |
|
|
20 µl |
| STANDARD |
|
20 µl |
|
| REAGENT |
1000 µl |
1000 µl |
1000 µl |
Mix well, incubate for 10 min at 37°C. Measure absorbance of the
sample (Ac) and standard (As) against reagent blank.
CALCULATION AND LINEARITY
Ac/As
x Conc. Standard = CSF TOTAL mg/dl
Ac/As x Conc. Standard x Vdl = URINE TOTAL PROTEIN
mg/dl |
Where Vdl is the urine volume in dl
The method is linear to a concentration of 200 mg/dl. |