2,3,4,5-Tetrabromobenzoic acid, 1.2ml x 50ug/ml, methanol Back Catalog number: TBBA Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 82515 EPA Method 8250 - Acid Matrix Spiking Solution Price on request 70193 Heptachlor epoxide (isomer B), 1000µg/ml in MeOH, 1ml Price on request L20930000AL Pyrene, 10µg/ml in Acetonitrile, 10ml Price on request