What are the problems in the application of analytical instruments?
Analytical instruments also have limitations, such as gas chromatography can not measure a high boiling point of organic matter, the detector does not respond to the material can not be measured, the column has no adsorption ability on the target can not be measured.
What's more, the sensitivity problem, the ordinary atomic absorption can not measure the PPB class metal elements. For nonmetal elements, the atomic spectrum is helpless, so the analysis instrument has the characteristic of specificity.
