Any smart chemists out there?

Any chemists out there willing to help?

Sure why not.

In Atomic absorption spectroscopy what would be the path length of radiation through the absorbing solution?

Do you mean what it is in general? You can use the beer lambert law to find out. Otherwise it's the length of the cell in CM that you put your sample in.

Ok thank you, and yes im using beers law, but to find the absorptivity of the substance.

Also do you know anything about gas chromatography? How would you determine what peak the isopropanol is in an unknown solution by looking at the unknown graph as well as given a known graph with peaks for methanol, ethanol, propanol, isopropanol, and butanol?

if you upload the spectra I can take a look.