Dry chemical reagent tapes are generally divided into four layers: nylon membrane, fleece layer, water-absorbent layer and support layer.
1. Nylon film layer
The top layer of the dry chemical reagent belt is a nylon film, whose main function is to protect the reagent belt. This thin film prevents contamination of the reaction by macromolecular substances, thereby ensuring the accuracy of the detection results.
2. Velvet layer
The Velvet layer is the middle layer of the dry chemical reagent tape, its main function is to absorb the sample. Samples such as urine will be drawn into this layer, react with the reagents, and produce corresponding color changes or signal outputs.
3. Water-absorbing layer
The water-absorbing layer is the lower layer of the dry chemical reagent tape, and its main function is to absorb moisture. When urine and other samples are sucked into the fleece layer, the water-absorbent layer will quickly absorb the excess water to prevent the sample from overflowing or affecting the test results.
4. Support layer
The support layer is the bottom layer of the dry chemical reagent tape, and its main function is to fix the reagent tape. This layer is usually made of plastic material and holds the entire reagent strip firmly together for ease of use and storage.
Introduction and usage of dry chemical reagent strips
1. Introduction to dry chemical reagent strips
Dry chemical reagent strips are used to detect biological samples Portable equipment for handling certain chemicals. It usually consists of a test strip coated with specific reagents that react with chemicals in the biological sample to produce a visible color change.
This equipment is widely used in clinical laboratories, environmental monitoring, food safety and other fields, providing convenience for rapid and accurate testing.
2. How to use dry chemical reagent tapes
1. Prepare the reagent tape: Take out the reagent tape from the kit and make sure that the reagent tape is not damp or damaged.
2. Collect biological samples: According to the substances that need to be detected, collect corresponding biological samples, such as blood, urine, saliva, etc.
3. Dip the reagent tape into the biological sample: Dip one end of the reagent tape into the biological sample to ensure that the reagent tape fully absorbs the sample.
4. Wait for the result: Place the reagent strip on a flat surface, wait for the specified time, and observe the color change on the reagent strip.
5. Result judgment: Judge the test result based on the color change on the reagent tape and the color gradient chart on the instruction manual.