Chromatograms of MgCp2 in bubblers from Company "B". Different processes were used to synthesize the MgCp2 in each of the three bubblers. Neither of the processes for bubblers B2 and B3 used diethyl ether. However, only B3 could be purified fully by evacuation. The final result is identical to the chromatogram shown in figure 3.
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