Table 1. Radiolabeling of FSC-ZEGFR:2377 and DFO-ZEGFR:2377 with Zirconium-89 (2.4 nmol, pH 7 at 28 °C and 85°C)^a.

	radiochemical yield (RCY %)
	FSC-ZEGFR:2377		DFO-ZEGFR:2377
time [min]	28 °C	85 °C	28 °C	85 °C
10	33.7 ± 10.9	83.6 ± 7.9**	37.9 ± 20.6	96.5 ± 3.0*
30	63.2 ± 11.6	96.8 ± 1.8**	50.2 ± 16.3	97.5 ± 1.4*
45	n.d	n.d	62.3 ± 14.4	98.2 ± 1.0*
60	82.7 ± 10.3	97.7 ± 0.1	74.4 ± 9.9	98.5 ± 0.6*
90	88.1 ± 7.4	98.6 ± 1.0	81.8 ± 0.2	n.d
120	91.9 ± 5.8	n.d	83.1 ± 2.6	n.d

^aData were calculated from ITLC measurement of the nonpurified bioconjugates and are presented as mean ± standard deviation (n = 4), statistical analysis was performed using the Student’s t test with P values indicating very significant (** P < 0.01) and significant (* P < 0.05) difference between various temperature.