CEL and chronic myelogenous leukemia, BCR-ABL1 positive: The extraction recoveries of CML were 89.16, 92.91, and 100.64% for low, medium, and high concentration plasma samples, respectively, with an average extraction recovery of 94.24%, while it was 97.63, 97.48, and 98.57% for CEL, respectively, with an average extraction recovery of 97.89%.