EPA Method 8040A Analytes Mix “B” Back Catalog number: 80412 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71764 Pyruvic aldehyde Price on request MBP-3 4-Chloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane Price on request 79497 n-Butanol Price on request