170135_inorganicventures_flipping

3:15 Sampling and sub-sampling

Contamina2on Issues During Sampling (cont.) Some trace element impuri/es in laboratory-ware materials (Ref 1)

A ND - not determinable

3:16 Sampling and sub-sampling

Contamina6on Issues During Sampling (cont.)

Contamina(on by leaching from container walls (Ref 1)