TABLE 1.

Comparison of silicon oil and centrifugation methods

Time (min)	Silicon oil separation method			Centrifugation separation method
	Level (ng/mg) of binding at 0°C	Level (ng/mg) of accumulation at 37°C	Level (ng/mg) of intracellular accumulation	Level (ng/mg) of binding at 0°C	Level (ng/mg) of accumulation at 37°C	Level (ng/mg) of intracellular accumulation
5	241	330	89	10	123	113
10	154	259	105	10	129	119