The actual contents of CMPF and IAA in uremic serum samples.

Sample	Spiked (CMPF), μg mL−1	Found, μg mL−1	Recoverya (%)	Sample	Spiked (IAA), μg mL−1	Found, μg mL−1	Recoverya (%)
Patient A	0.001	11.91	109.0	Patient A	0.001	1.26	108.1
Patient B	0.001	10.72	100.1	Patient B	0.001	1.01	102.0
Patient C	0.001	1.97	96.0	Patient C	0.001	0.79	70.7
Patient D	0.001	1.87	90.4	Patient D	0.001	0.55	60.7
Patient E	0.001	1.69	86.2	Patient E	0.001	0.50	58.0

^aRecovery = (found concentration− basic concentration)/spiked concentration × 100%.³⁹