Which limitation arises when using isotopic dilution methods for quantifying pollutant concentrations?

💡 Explanation

Isotope fractionation can alter the ratio of isotopes, leading to inaccurate concentration measurements via the kinetic isotope effect. Therefore, the method's precise ratios are affected, rather than matrix effects, equilibrium failures, or radioactive decay being primary constraints.

• When a pulsed laser etches silicon exposed to chlorine gas, which mechanism limits etch depth?
• Which outcome occurs when energy applied by voltage meets an electron within a reverse-biased semiconductor?
• Which optical effect limits resolution during laser etching?
• Which outcome occurs when the gas constant increases?
• Which consequence results when unpolarized light strikes dichroic mineral tourmaline?
• Which outcome results from sudden pipe constriction inducing turbulence?