Neuroinflammation in Low-Level PM2.5-Exposed Rats Illustrated by PET via an Improved Automated Produced [¹⁸F]FEPPA: A Feasibility Study

Table 2

Stability of three consecutive productions of the [¹⁸F]FEPPA (2) ().

Items tested	Acceptance criteria	Elapsed time (hr)	Run 1	Run 2	Run 3
Radiochemical purity (%)	>90%	0	99.9	99.8	99.8
		2	99.0	99.3	98.6
		4	98.9	99.4	97.7
Residual [^18F]Fluoride (%)	<5%	0	0.01	0.02	0.59
		2	0.34	0.73	1.01
		4	1.04	0.23	1.89