1. First of all, you need to see what function you are using to make the curve;
2. The hardware must be good, such as imported boards, imported guns and gun heads, etc., and also You must be quite skilled at spotting;
3. Use stable standard diluents, enzyme dilutes, and chromogenic solutions;
2. Standards are diluted according to a certain ratio, generally choose 3 times, 2.5 times, 4 times, etc. If it really doesn’t work, use the mixing ratio;
. . . . There are many reasons that affect linearity. It is recommended to read more papers.