Product Description

Urinalysis dip and read strips for visual or instrumenal use.
Test for:glucose, bilirubin, ketone, specific gravity, urobilinogen, nitrite, leukocytes.
Occult blood,ph,protein. reagent strips for urinalysis are plastic strips to which several
separate absorbent reagent test areas are affixed, the reagent strips are packaged in
plastic vials containing a desiccant and closed with a tightly fitting plastic stopper cap and
aluminum foil cover. The directions must be followed exactly and it is necessary to use
fresh, well mixed uncentrifuged urine for optimal results, the test strips must be
maintained tightly capped in the plastic vial to assure reagent reactivity.
Procedure: must be followed exactly to achieve reliable results.
1. please refer to the carton and bottle label for specific reagent areas on the product you
are using.
2.collect fresh,well-mixed,uncentrifuged urine specimen in a clean dry container mix
well immediately before testing.
3.remove one step from the container and replace the cap immediately.
4. dip the test strip into the urine up to the mark for about 1 second. Do not allow the
reagent areas to touch the rim of vessel or absorbent tissue.
5.remove the strip and wipe off excess urine on the rim of the vessel. Hold the strip in a
horizontal position to prevent mixing of chemical from adjacent reagent areas and/or
contamination the hands with urine.
6. properly orient the strip near the appropriate color chart on the container label. At the
times specified, read the test result carefully under good lighting or you can read with
instrument very easily.
Glucose:
Chemical principle: this is based on a double sequential enzyme reaction. One enzyme,
glucose oxidase, catalyzes the formation of gluconic acid and hydrogen peroxide from the
oxidation of glucose. A second enzyme, peroxidase, catalyzes the reaction of hydrogen
peroxide with a potassium iodide chromogen to oxidize the chromogen to colors ranging
form blue through green to brown..
Range: *******0mg/dl
Bilirubin
Chemical principle: this test is based on thecoupling of bilirubin with diazotized
dichloraniline in a strong acid medium.
Range: small+ 0.5mg/**0ml, moderate ++ 1mg/**0ml, large +++ 3mg/**0ml.
Ketone:
Chemical principle: this test is based on the developmennt of color changes.
Range: 0.5~*6mmol/l (trace~ ++++).
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Specific gravity:
Chemical principle: this test is based on the pka change of certain pretreated
polyelectrolytes in relation to ionic concentration.
Range: 1.**0~1.*0
The first morning specimen should have a specific gravity between 1.**5 an 1.**5.
Adults random specimen, 1.**5~1.**0(highest in the morning).
Occult blood:
Chemical principle: this test is based on the peroxidase-like activity of hemoglo bin
which catalyzes the reaction of cumene hydroperoxide and tmb.
Range: blood test has a sensitivity of 0.**5mg hemoglobin/dl or 5~*0 intact red cells/μ l.
Ph:
Chemical principle: this test is based on a double indicator principle whicch gives a
broad range of colors covering the entire urinary ph range.
Range: urine values generally range from 5 to 9 ph uints.
Protein:
Chemical principle: this test is based on the color change of the indicator
tetrabromophenol blue in the presence of protein.
Range: 0.1~2.0g/l
Urobilinogen:
Chemical principle: this test is based on the ehrlich reaction in which
p-aminobenzaldehyde reacts with urobilinogen.
Range: normal range is 3.2~*6 μ mol/l, **2 μmol/l, +**4 μmol/l, ++***8 μmol/l.
Nitrite:
Chemical principle: this test depends upon the conversion of nitrate to nitrite by the
action of gram negative bactria in the urine. The diazonium compaound in turns couple
with n-l-naphthylethylenediamine dihydrochloride to produce a pink color.
Range: the nitrite test has sensitivetity of 0.**5mg/dl sodium nitrite in urine having low
specific and less than 5mg/dl ascorbic acid.
Leukocytes:
Chemical principle: this test is based on the development of color ranging from beige for
negative reading to pink.
Range: trace *0~*5wbc/ μ l small *0wbc/μ l, moderate **5wbc/ μl, large **0wbc/ μ