• Design and Preparation of Samples for the International Collaborative Study

      Harkness, D. D.; Cook, G. T.; Miller, B. F.; Scott, E. M.; Baxter, M. S. (Department of Geosciences, The University of Arizona, 1989-01-01)
      Sample materials issued to participants in the interlaboratory calibration exercise are defined and in context of their intended interpretational significance. Preparation of the benzene and calcium carbonate standards as issued for stage 1 is described in detail; likewise, the source and pretreatment/extraction of the environmental samples dispatched for stages 2 and 3.