Mass-Labelled PCB Sampling Standard, 1.2ml, nonane Back Catalog number: P48-SS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 677971 Chlorpyrifos, 100 µg/ml, Toluene, 1ml Price on request 59076 Fluoride (F-) Price on request 680029 Azoxystrobin Metabolite R402173, 100 µg/ml, Aceto Price on request