What is the standard of swab sampling ?

What is the standard of swab sampling ?

The sampling swab is in direct contact with the sampling part when sampling, that is, it is in direct contact with our human organs. The material of the sampling head is closely related to the subsequent detection.

The sampling swab head should be made of PE synthetic fiber, polyester fiber, polypropylene fiber, man-made fiber and other synthetic fibers.
Do not use calcium alginate sponge or club swab (including bamboo swab) for sampling swab head, and the data of swab head can not be used for cotton products, because the cotton fiber has strong adsorption on protein, it is difficult to elute into the subsequent preservation solution; However, calcium alginate and mallet or bamboo stick will absorb protein after being broken and soaked in preservation solution, and even inhibit the subsequent PCR reaction.
Synthetic fibers such as PE fiber, polyester fiber and polypropylene fiber are recommended for making swabs.
Cotton and other natural fibers are not recommended, and nylon fiber is not recommended. Because nylon fiber may have poor water absorption, the sampling amount is insufficient, which affects the detection rate.
Calcium alginate sponge is forbidden for swab sampling data! Calcium alginate sponge is forbidden for swab sampling data! Calcium alginate sponge is forbidden for swab sampling data（ Say important things three times

There are two kinds of swab handle: broken type and built-in type.
After sampling, the broken swab is put into the preservation tube, and the tube cover can be tightened after it is broken near the head.
The built-in swab can directly put the sampling swab into the preservation tube after sampling, and then align the hole in the tube cover of the preservation tube with the top of the handle and screw the tube cover tightly.
Compared with the two methods, the latter is relatively safe. When the broken swab is used with the smaller storage tube, the liquid in the tube may be splashed when it is broken. Therefore, we should pay attention to the pollution risk caused by improper use of the product.
No matter what kind of materials are used, calcium alginate additives can not be added; Do not recommend the use of mallet or bamboo stick.