Chlorpyrifos-D10, 100µg/mL in Acetone, 1ml

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

ICP-AES - Verification I Standard 1

Thorium (Th)