Table 1.

Weight percentages of selenium (Se) and Na on Se compact surfaces^*

Se compacts	Weight % of Se	Weight % of Na
Untreated	99.94	0.06
Treated with 1N NaOH for 10 min	99.82	0.18
Treated with 1N NaOH for 30 min	99.72	0.28

^*Note: Data not statistically different.