Urinalysis Reagent Strip

1. urine analysis strip is dry chemical reaction principle, the human body in the urine of white blood cells, proteins, ph, urine specific gravity, ketone body, bilirubin, occult blood, nitrite, uric bravery, glucose, creatinine, vitamin C, calcium within ten three indexes such as qualitative and semi-quantitative detection.

2. For the use of this product, we must pay attention to several points. For example, at the beginning, we should immerse all the reagent part on the urine analysis strip into the sample, and then take it out immediately.

3. Additionally, the edge of the urine analysis strip should be gently brushed along the mouth wall of the sample container to remove excess urine. Then place the reagent block on the urinalysis strip horizontally up and compare with the color map to record the results.

Rational use of urine analysis strip has played a very good role in our timely detection of disease and timely treatment

[Test Principle]

Urobilinogen:Urobilinogen with diazonium salt produce red violet dyes in strong acid medium.

Bilirubin:The direct bilirubin with dichlorobenzene diazonium produce azo dyes in acid medium.

Ketone:The acetoacetic acid and sodium nitroprusside cause reaction in alkaline medium,which produces red violet compound.

Blood:Hemoglobin acts as peroxidase. It can cause peroxidase release neo-ecotypes oxide (O).(O) oxidizes the indicator and make the color change subsequently.

Protein:It is based on a specific pH indicator attracted by cation on protein molecule,the indicator further ionized and make the color change.This phenomenon is called protein-error-of -indicator principle.

Nitrite:Nitrite and aromatic amine are diazotized to form a diazonium compound.The diazonium compound reacts with tetrahydrobenzo(h)quinolin 3-phenol produce the red azo dye.

Leukocyte:Pyrrole amino acid ester produce free phenol under the hydrolysis of esterase in neutrophile granulocyte,the free phenol couple with phenyl diazonium salt produce purple azo dyes.

Glucose:The glucose oxidized by glucose oxidase catalyzes the formation of glucuronic acid and peroxide hydrogen.Peroxide hydrogen releases neo-ecotypes oxide(O)under the function of peroxidase.(O)oxidizes tetramethyl benzidine,  which make the color change.

Specific Gravity:Methyl vinyl ether and maleic acid copolymer is weak acid (-COOH) exchanger,the M+ cation (the major is Na+) in urine reacts with the exchanger and release hydrogen ion,hydrogen ion reacts with indicator produce color change.

pH:The method of pH indicator is applied.

Ascorbic Acid:Ascorbic acid deoxidizes the 2.6-dichlorphenolindophenol dye into colorless in alkaline medium.

Microalbumin:Sulfone phthalein dye has high sensitivity to microalbumin by the method of protein error.

Creatinine:Creatinine with 3,5-Dinitrobenoic acid produce violet compound in alkaline medium. 

Calcium:Calcium ion reacts with methyl bromothymol blue produce color change in alkaline medium.