What kinds of stuffing boxes are there?

At present, there are too many kinds of packages to choose from, which is very difficult to list. It can only be said that you can learn the knowledge of related packages according to your own conditions.

But as far as I know,

One of the biggest characteristics of the kit is that it is simple and rapid to operate and the result is objective while ensuring specificity.

First of all, talk about specificity:

1. At present, the immune kit is commonly used in clinic. This kit is based on the principle of antigen-antibody reaction, and there is a high degree of specificity between antigen and antibody. If pathogenic microorganisms, viruses and other substances enter the body, they will be rejected by the body to produce antibodies, which are specifically aimed at certain substances. Therefore, as long as such antibodies can be found in human body fluid samples, it can be judged to a great extent that this person may have been invaded by some microorganism or virus, and the specificity is very high.

2. At present, the nucleic acid detection kit for novel coronavirus is based on the principle of PCR. Simply put, it is detected by the characteristics of DNA double helix structure, because DNA double helix structure is base complementary pairing, that is to say, we can make a complementary strand through the nucleic acid sequence of the virus in vitro, and then use this complementary strand as a kit. If you still have this virus in your body fluid, its nucleic acid sequence will combine with the complementary strand in the kit, and the complementary strand will carry a fluorescent substance when making the kit. Once they combine, they will activate fluorescence, and detecting this fluorescence intensity can determine whether there is a virus. This method has also achieved specificity, and it is better than the immune method to detect the virus before the body produces antibodies. Because viruses also have a characteristic called window period, this method is better than antibody detection.

Then the second feature: the above two kits are commonly used in the hospital laboratory, and the operation is very convenient. Some kits are small plates. It is very convenient to treat the body fluid sample of the subject, drop it on it according to the amount in the instruction, and observe whether there is any color change after a specified time.

I hope it can help the subject.