Mass-Labelled PCB Sampling Standard, 1.2ml, nonane

2,3-Benzofluorene, 1000µg/ml in methylene chloride, 1ml

Iprobenfos, 100 µg/ml, Ethyl acetate, 5ml

Custom Mixture of Other nitrosamines Ass. concentrations in acetonitrile 9020.6 1000ug/ml 2-nitro-4-phenylenediamine 5307-14-2 9018.7 500ug/ml N-Nitrosomethylphenylamine 614-00-6 9021.12 1000ug/ml 2-Nitrodiphenylamine 119-75-5 8926.2 1000ug/ml N-Ni