Perfluoro-4-oxapentanoic acid (PFMPA), 50µg/ml in MeOH, 1,2ml Back Catalog number: PF4OPEA Availability: In the manufacturer's stock Price on request - + Recommended S-4050-10-10IO Calibration Mixtures: Di-n-butyl sulfide in Isooctane Unit: 1x10mL screw-capped bottle Isooctane µgS/g (ppm) Wt.% S-4050-0-10IO 0 Blank 0 S-4050-1-10IO 1 0.0001 Etc. S-4050-10Kit Kit of above solutions Price on request 82454 EPA Method 1671 Volatile Organic Compounds Price on request S-4132-ASS-MXX5 Olefin Mixture 5 Analytes, each Wt.% as listed in n-hexane/n-heptane = 1:1; units: 1x1mL, 5x1mL Use this standard to adjust the olefin and Ether-Alcohol-Aromatic (EAA) trap temperatures so that C5 through C9 olefins are quantitative determined. Name Price on request