20. Which statement is correct?
(A) Comparison with standards is used to identify random error
(B) Calibration curve is used to compensate the matrix effect
(C) Standard addition method is used to reduce the random errors in measurements
(D) Standard addition method is used to compensate the matrix effect
(E) Internal standard is used to reduce the random error in measurements
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統計: A(2), B(3), C(4), D(7), E(3) #3227633
統計: A(2), B(3), C(4), D(7), E(3) #3227633