In the atomic absorption analysis method, the sensitivity and accuracy of the measured element depend to a large extent on the atomization system.
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In the atomic absorption spectrophotometer, the currently commonly used light source is a tungsten lamp.
The radiation sources used in atomic absorption spectrometry (AAS) are usually element-specific.
The coordination numbers of [Cu(NH3)4]2+and[Cu(en)2]2+ are both 4.
If the stability of the complex formed by the indicator and M is slightly less than that of the corresponding EDTA complex, the end point will be delayed, which belongs to the fossilization of the indicator.