2-Chlorobenzoic acid

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

4-Nonylphenol-mono-ethoxylate, 10µg/ml in Acetone, 1ml

Multi-Element Solution 1