Quantum dots technology in recent years has been widely used in biomedical applications, gradually become an important biomedical test because of its spectral characteristics and good photochemical stability. At the end of the last century seventy's, scientists have conducted in-depth research on quantum dots technology, its advantage has gradually been excavated, it can be said of quantum dots has a long research history. But until the late twentieth century was applied to the field of biology, since then, the application of quantum dots in biomedicine has attracted people's attention. In many fields of biomedicine, there is a breakthrough. This paper analyzed comprehensive for quantum dot technology and its application in biomedical test.

If the seven constants were changed,the result of specimen testing would be affected directly.When we understand the meaning of the seven constants.the job of medical equipment maintenance and care will become more effective.Meanwhile,we should pay attention to the influence on the result caused by other factors of a constant besides the seven Coulter Constants.