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Internal standard method, instrumental analysis

Internal standard method, instrumental analysis

Answer:

Choose a line in the spectrum analysis of the measured element, choose one with its symmetric line in the matrix line, according to this on the spectral line intensity ratio on the content of the measured elements making working curve, and then to the unknown sample by quantitative analysis method called internal standard method.
Because the spectral line intensity I is not only related to the concentration of elements, but also affected by many factors. The internal standard method can eliminate the influence caused by the fluctuation of experimental conditions and improve the accuracy. Hope to be of help to you!

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