Table 1.

Manganese content in cell pellet digests as measured on ICP-AES.

Sample	Mn Concentration/pellet (ppb)	Mn Concentration/cell (mol)
Control	BDL	BDL
2-hour labeling interval
0.10 mM	8.82	1.05e-11
0.25 mM	13.5	1.61e-11
0.50 mM	19.1	2.28e-11
24-hour labeling interval
0.10 mM	12.4	1.47e-11
0.25 mM	18.0	2.14e-11
0.50 mM	46.9	5.59e-11

BDL: below detection level.