Standard products and reference products refer to the standard substances used in the national drug standards for identification, inspection, content determination, impurity and related substance inspection, which is an integral part of the national drug standards. The national drug standard material is the material basis of the national drug standard, which is a special measuring tool used to check the quality of drugs. It is the benchmark for measuring drug quality; It is also used as a material standard for calibration of test instruments and methods.

Standard products and reference products are also often used in experiments or calibration content determination. Standard products are mainly used to indicate titer units by unit (U). They are used for biological identification, and are standard substances for content determination in drugs and antibiotics.

The standard products are divided into the standard products made by the CCI and the standards made by the manufacturers. At present, the standard products of the CCI are basically in short supply, so in most cases, the major pharmaceutical, pesticide, specialty chemical food and personal care departments will choose to buy the standard products from the homemade manufacturers. Standard products must have stable performance, accurate value, in order to better play its role, so we also need to pay attention to the following points when purchasing standard products:

1, achieve material stability

This point is the most basic and most important requirement for judging whether the quality is good, and an unstable standard is not able to play its accuracy.

2, the structure and molecular weight must be the same

At present, there are thousands of varieties of standard products on the market from high quality to poor quality, and there are many standard products whose Chinese name is the same, but their molecular weight and structure are completely different, which is very normal, so we need to pay attention to when buying standard products. Whether the molecular weight structure formula and CAS number of the standard product you need and the standard product supplied by the manufacturer are the same to avoid buying different products; For example, the Chinese name icariin has two different CAS numbers.

The above is the introduction of the standard products to meet what conditions, after reading the introduction of the above content, I believe that everyone has a more in-depth understanding of the standard products. In our daily work, if we need to use standard products, we can still make specific choices according to our actual needs.