In atomic absorption spectroscopy, if the components are complex and the content of the measured components is low, in order to analyze easily and accurately, which method is the best choice for analysis?
A. Working curve method
B. Internal standard method
C. Standard addition method
D. Indirect measurement method
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In the EDTA titration Mg2+ system, which of the following substances will not affect the accurate titration. ( )
A. water
B. acid
C. concentrated NaOH
D. to join the weak alkaline solution pH = 10.0
Interferences that may be encountered in AAS can be classified as?
A. Physical and chemical
B. Physical and spectral
C. Physical, chemical and spectral
D. Chemical and spectral
Flame atomic absorption spectrometry (FAAS) is used for?
A. Liquid solutions
B. Solid samples
C. Liquid solutions and solid samples
D. Liquid solutions and vapors
An atomic absorption spectrometer basically consists of the following components:
A radiation source, an atomizer, a monochromator and the sample
B. A radiation source, an atomizer and the detector
C. A radiation source, an atomizer, a monochromator and the detector
D. A radiation source, a monochromator, a detector and the sample
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