Mass-Labelled PCB Solution/Mixture , 1.2ml, nonane Back Catalog number: PCB-IS-B20 Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 51124 Internal Standard ASTM D-5307 Price on request 14055.21-100-ME (±)-11-OH-Δ9-THC-d3, 100µg/ml in MeOH, 1ml Price on request 78010 Dichlorprop, 1000µg/ml in MTBE, 1ml Price on request