TABLE 1

Stability Test for ^99mTc-C2A-GST

Fluid	0 h	1 h	2 h	4 h	24 h
Saline	99.53	99.53	99.12	98.70	98.42
Rat serum	99.53	96.42	95.70	93.40	91.32
Rat whole blood	99.53	90.85	90.77	90.08	89.17

^99mTc-C2A-GST was incubated with saline, rat serum, or whole blood for 1, 2, 4, and 24 h. RCP was determined using ITLC.