In atomic absorption spectroscopy, the molecular absorption of the atomizer belongs to:
A. Interference caused by overlapping spectral lines
B. Chemical interference
C. Physical interference
D. Background interference
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What are the following molecular structure features that do not affect the fluorescence of the molecule?
A. Conjugated structure
B. Molecular weight
C. Molecular rigidity
D. Molecular polarity
Non-fluorescent substances cannot be detected directly by fluorescence analysis.
According to Lambert-Beer law, the greater the concentration of the measured solution, the greater the absorbance and the higher the accuracy of the measurement results.
The copper sulfate solution appears blue, because which color of white light is absorbed by this solution?
A. Blue
B. Yellow
C. Violet
D. Green