Answer / gitush

External standard is a standard that you bought. Internal standard is the one that you tested and compared to external standard, found it at the same or higher purity and use as a standard in your laboratory / company. Normalization is a process of getting the right concentrate calculated based on standard.

Answer / s.goutham

internal standard method method known amount of standard
was added in sample. External stanadard method standard
eas perform seperately not with sampe. area normalaisation
was injected as such

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