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. Author manuscript; available in PMC: 2014 Jul 23.
Published in final edited form as: J AOAC Int. 2005 Nov-Dec;88(6):1607–1612.

Table 10. Results for the 150% nominal level spike.

Sample identification Weight of botanical extract added, g Total naphthodianthrones in extract, % Recovery, %
High level 1 0.4198 0.367 103.4
High level 2 0.4240 0.357 100.5
High level 3 0.4141 0.363 102.3
 Avg. 102.1
 RSD, %a 1.42
a

RSD = Relative standard deviation.