TABLE 1

Breakdown of Radiochemistry Data

Subject no.	Radiochemical purity (%)	Radionuclide purity (%)	Radiochemical yield (%)	SA at end of bombardment (GBq/μmol)	SA at injection (GBq/μmol)
1	100	100	28	25	6
2	100	100	15	25	6
3	100	100	15	25	1
4	100	100	8.5	4	740*
5	99	100	13	122	29
6	99	100	13	122	7
H&Y 4♂	100	100	15	5	1
7^†	100	100	21	12	2
8^†	100	100	17	25	6
9^†	100	100	19	12	3

↵* MBq/μmol.
↵^† Subjects 7–9 are healthy individuals who are not discussed in this article. Data for remaining 4 PD patients were not immediately available.
SA = specific activity; H&Y 4♂ = H&Y stage 4, male PD patient.