for qualitative measurements2% w/v of each analyte in p-XylenePhenol. 2 mL2,6-Xylenol.2 mL2-n-Propylphenol. 2 mLo-Cresol. 2 mL3,4-Dimethylphenol .2 mL2,3,5-Trimethylphenol . 2 mLm-Cresol . 2 mL3,5-Xylenol.2 mL2,4,6-Trimethylphenol. 2 mLp-Cresol . 2 mL2-Et