Table 1. Stability of ⁶⁷Ga-Labeled Model Chelators^a.

	murine plasma		ApoTf (0.1 mM)
	3 h	24 h	3 h	24 h
[67Ga]Ga-p-NO2-Bn-DOTA (A)	97.6 ± 0.3cdef	95.9 ± 0.1cdef	95.1 ± 1.2def	90.3 ± 0.7cdef
[67Ga]Ga-p-NO2-Bn-DOTA (B)	96.2 ± 0.4b	85.9 ± 0.4bcde	89.5 ± 0.7bcde	56.0 ± 0.5bcde
[67Ga]Ga-DOTAGAMBu	96.1 ± 0.4b	82.2 ± 0.2bcd	80.0 ± 1.3bcd	27.5 ± 4.6bcd
[67Ga]Ga-DO3AMBu	96.1 ± 0.6b	83.9 ± 0.5bc	87.4 ± 0.5bc	43.1 ± 1.1bc
[67Ga]Ga-p-NO2-Bn-DO3A	96.7 ± 0.5	87.6 ± 0.3b	93.8 ± 0.6b	67.5 ± 0.6b
[67Ga]Ga-DOTA	97.5 ± 0.5	95.5 ± 0.4	96.4 ± 0.2	89.6 ± 0.5

^aResults are expressed as mean ± SD (n = 5).

^bSignificances determined by Tukey’s test for the one-way ANOVA; p < 0.05 compared with [⁶⁷Ga]Ga-DOTA.

^cSignificances determined by Tukey’s test for the one-way ANOVA; p < 0.05 compared with[⁶⁷Ga]Ga-p-NO₂-Bn-DO3A.

^dSignificances determined by Tukey’s test for the one-way ANOVA; p < 0.05 compared with[⁶⁷Ga]Ga-DO3AM^Bu.

^eSignificances determined by Tukey’s test for the one-way ANOVA; p < 0.05 compared with[⁶⁷Ga]Ga-DOTAGAM^Bu.

^fSignificances determined by Tukey’s test for the one-way ANOVA; p < 0.05 compared with[⁶⁷Ga]Ga-p-NO₂-Bn-DOTA (B).