Table 3.

In vitro buoyancy behavior of different batches at different time intervals.

Sample No	Batch No.	Percent of floating microspheres±SD (n=3)
		After 1 hr	After 2hrs	After 4hrs
1	A-1	63.2±0.4	44.5±0.6	26.2±0.3
2	A-4	66.32±0.6	53.3±0.4	31.7±0.8
3	A-12	72.1±0.3	57.7±0.6	38.3±0.5
4	A-14	69.3±0.2	51.3±0.3	33.5±0.6