Gas Chromotagraphy

Apr 2014

i am using a gas chromotography, GC to detect quinoline.

i have diluted 75% n-octane and 25% p-xylene into my quinoline to get a concentration of 100ppm.

my question is, will there be any chemical reaction occurring if i mix all these three solvent together?

because when i run my sample into the GC, my graph shows too many peaks when i'm suppose to have 1 peak only for quinoline.

please help?