Which absorption wavelength should be selected for ICP analysis to determine the sodium content in solid samples?
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For ICP analysis to determine the sodium content, there are four absorption wavelengths used. When measuring sodium in aqueous samples, all four wavelengths yield similar results. However, when analyzing sodium in solid samples, each of the four wavelengths gives its own value. In such cases, which absorption wavelength’s value should be chosen? Do these four lines having their own values have anything to do with the sample dissolution process? Is there anything I need to pay attention to?
The absorption wavelength for sodium detection by ICP is usually 589 nm. -
Okay, okay. I’d like to ask further: do you know why the values for the four lines are different?
Okay, okay. I’d like to ask further: do you know why the values for the four lines are different?
This is because different solution environments can affect the wavelength value at which sodium is detected by ICP; various solution environments absorb different light wavelengths, which results in differences in the detected values. -Different absorption wavelengths can detect different substances, and different substances exhibit varying absorption patterns, which results in different values for the respective absorption wavelengths. For example, sodium can be detected at a wavelength of 589 nm, but its absorption rate is different from that of other elements, so the detected values will vary. -