Ciprofloxacin-HCl, 100ug/ml, 10ml in ACN

Isoprocarb, 100 µg/ml, Acetonitrile, 5ml

2,2',5,5'-Tetrabromo[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Bis-(2-chloroethoxy)-methane, 100 ng/µl, 1ml