WS Trace Elements #2

Linear Alkyl Benzene Sulfonate Standard solution, ISO, 10µg/ml, Solvent-water, Unit 50mL, # of units-5, Cas.no. 69669-44-9

2,2',3,3',4',5,6-Heptachlorobiphenyl (177)

2,4-Dibromobiphenyl, 1.2ml x 50ug/ml, nonane