Which is proved that the substance determined by this method is expected, and the index of the substance to be determined ()
A: Standard curve and quantitative range
B: Specificity
C: Stability
D: Matrix effect
A: Standard curve and quantitative range
B: Specificity
C: Stability
D: Matrix effect
举一反三
- The absorption curve is ( ). A: The curve of the relationship between the concentration of light-absorbing substance and absorbance. B: The curve of the relationship between the concentration of light-absorbing substance and transmittance. C: The curve of the relationship between the wavelength of incident light and the thickness of light-absorbing substance solution. D: The curve of the relationship between the wavelength of incident light and the absorbance of a light-absorbing substance.
- Which substance is in standard state? A: H2(298.15K) B: H2(100KPa) C: H2O (1mol) D: Ca(100K)
- Stability is determined by the relationship of the center of gravity and the（）.
- Titrate is ( ) for each 1 ml of titrant at the specified concentration. A: the mole number of the drug measured B: the mass of the drug measured C: the mole number of the standard substance D: the mass of the standard substance
- Stability is determined principally by the location of the center of gravity and the（）.