Urinalysis test strips refer to test strips that test for bilirubin, urobilinogen, ketone bodies, ascorbic acid, glucose, protein (albumin), blood cells, PH, etc. in urine. Urine Reagent Strips,Urine Test Strip,Urine Sugar Strip Test,Visual Urine Analysis Strips Jilin Sinoscience Technology Co. LTD , https://www.jilinsinoscience.com
Detection principle
1. pH: The pH value in the range of 5-9 is measured by the pH indicator, and the pH value of the fresh urine of a normal person is between 5-7.
2. Nitrite: The reaction is based on the reduction of nitrate to nitrite by Gram-positive bacteria in the urine. The nitrite reacts with p-aminobenzenesulfonic acid to form diazonium compounds, which are then combined with N-(1-naphthalene) )-3 aminopropanesulfonate combined with a pink color.
3. Glucose: According to the reaction principle of glucose oxidase, glucose oxidase specifically oxidizes glucose to generate glucuronic acid and hydrogen peroxide. Under the action of hydrogen peroxide, hydrogen peroxide oxidizes the indicator and turns color. .
Classification
Urinalysis test strips are divided into visual series and machine series. The visual inspection series is divided into several models according to different inspection items; the machine inspection series is divided into several models according to different applicable instruments.
1. Classification by measurement method
1) Visual inspection series
When observing the result, compare the color with the standard color code within the time specified on the color code, judge and read the result.
2) Machine test series.
For instrument operation, refer to the instruction manual of the Urine Analyzer used.
2. According to the number of measurement items
There are single-item, 2-item, 4-item and multiple test strips. Currently, 10-item or 11-item multiple test strips are most commonly used in hospitals.
3. Classification by structure
Urinalysis test strips with single-layer membrane structure and multi-layer membrane structure.
How does the fruit and vegetable washing machine perform cleaning work?
How does the fruit and vegetable washing machine perform cleaning work?
Fruit and vegetable planting inevitably has drug residues and surface unsafe factors. This is also a common problem in fruit and vegetable products on the market. Because we can't clean up harmful substances when we are not cleaning, the fruit and vegetable washing machine is different. As a professional equipment for cleaning, There are complete cleaning techniques and processes for the cleaning of all kinds of fruits and vegetables. How does the fruit and vegetable washing machine work?
The water is tumbling and "boiling" by the high-pressure cyclone pump, so that the dust and sediment on the surface of the material are quickly separated from the main body, and the cleaned material is input into the next process through the stainless steel mesh belt, and multiple pieces are arranged at the upper part of the discharge end. The fan-shaped nozzle cleans the vegetables twice to achieve a good cleaning effect.
The whole is made of high-quality stainless steel, and the user can adjust the speed of the mesh belt according to the process requirements, so that the object to be cleaned can be thoroughly cleaned.
Ozone sterilization, high pressure spray and brush removal function can be added according to customer requirements.
The material is cleaned by surfing, bubbling and high-pressure spraying. The soil on the surface of the material can be completely cleaned. The surface of the cleaning machine is brushed with a brush and the upper part is cleaned with high pressure spray. The washing rate is high and not damaged. The material is turned over to the conveyor belt, and is transported to the selection platform for public sorting after high-pressure water flow cleaning on the mesh belt.
The equipment is made of stainless steel SUS304 material except for motor, bearing and other standard parts. It is in full compliance with food hygiene requirements. The equipment is equipped with a bubble generating device to make the material rollover, remove the surface pesticide residue effect, and add appropriate amount of material. The medicament is disinfected and fixed, the floating object can overflow from the overflow tank, and the sediment is discharged from the sewage outlet to achieve the purpose of cleaning.