Skip to main content
. Author manuscript; available in PMC: 2019 Nov 1.
Published in final edited form as: Appl Radiat Isot. 2018 Jun 23;141:138–148. doi: 10.1016/j.apradiso.2018.06.017

Table 3:

Performance as a function of number of eluent and rinse plugs. Each plug is 6.2µL in volume. The eluent solution and rinse solution were 0.15 M NaCl and MeCN, respectively. Trapping data represents decay-corrected fraction of starting activity trapped on cartridge ± standard deviation (n=3). Elution data represents decay-corrected fraction of trapped activity ± standard deviation (n=3).

Step in concentration process Radioactivity measurement (% of trapped activity, decay-corrected)
Protocol 1: 6x eluent plugs Protocol 2: 2x eluent plugs, 4x MeCN plugs Protocol 3: 1x eluent plug, 5x MeCN plugs
After trapping 95.6 ± 3.5 91.8 ± 1.0 92.6 ± 1.3
Elution #1 Not measured Not measured 21.9 ± 2.6
Elution #2 Not measured Not measured 51.6 ± 8.1
Elutions #1, #2 (combined) 88.4 ± 1.3 87.6 ± 3.3 73.6 ± 5.6
Elutions #3, #4 (combined) 10.1 ± 2.9 6.1 ± 1.4 5.5 ± 1.9
Elutions #5, #6 (combined) 1.0 ± 0.4 0.3 ± 0.1 0.8 ± 0.2
Total eluate collected 99.5 ± 2.1 94.0 ± 1.9 79.9 ± 3.7