If you repeat an experiment and the result are very different from the result you got the first time the next step would be to what

Apeak with a retention time of 407 s has a width at half-height (w1/2) of 7.6 s. a neighboring peak is eluted 17 s later with a w1/2 of 9.4 s. a compound that is known not to be retained was eluted in 2.5 s. the peaks are not baseline resolved. how many theoretical plates would be needed to achieve a resolution of 1.5?

Δu of , in kj/kg, as it isto k, (a)as a of , (b) at , (c) at .

What are the similarities between compounds and mixtures?