Formaldehyde

Identification Mixture for Sterols Analytes, each 50µg/mL in isooctane; unit: 1x1mL 2900.27 Cholesterol 2795.27 3b-Cholestanol (Dihydrocholesterol) 2734.28 Brassicasterol 3913.28 Champesterol 3767.29 Stigmasterol 2732.29 24-Ethylcholest-

Custom mix of C10-C16 alkyl PAHs, 25 components each 2µg/mL in Toluene (Sigma quality 155004, ACS Spectrophotometric grade): Prepared gravimetrically by weighing components and solvent to a calculated 0,2mg/mL. This product has been diluted gravimet

Di-m-tolylphenyl phosphate,100 µg/mL,isooctane,1mL,