Table 1. Radiolabeling Parameters for Chelators Discussed with ⁶⁸Ga.

	radiolabeling conditions
chelator	[L]/M	pH	T/°C	t/min	RCC/%	stability to serum/%
Dpaa	10–4	7.4	37	15	9522	0,a,22, 58b,24
DOTA	10–5	4–5	80	5	95.228	80.0b,24
NOTA	10–6	4–5	25	5	98.628	98.0b,24
dedpa	10–7	4.5	25	10	>9925	77.8b,26
CHXdedpa	10–5	4.0	25	10	>9926	90.5b,26
CHXoctapa	10–5	4.0	25	10	>9926	74.7b,26

^aConditions: 90% serum, 30 min, 37 °C.

^bConditions: 50% serum, 2 h, 37 °C.