Methyl 9-trans-tetradecenoate

Total Cyanide (CN), 1000µg/ml in in Water / Tr. NaOH, 500ml

2-Methylquinoxaline, 1000mg

Custom mix of C13-C17 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 0,20mg/mL. This product has been diluted gravime