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. Author manuscript; available in PMC: 2026 Apr 5.
Published in final edited form as: J Chromatogr A. 2026 Jan 21;1769:466721. doi: 10.1016/j.chroma.2026.466721

Table 4.

Matrix effect of analyte in negative control.

Compound Name QC Nominal concentration(ng/mL) Matrix Effect (%) (n=6)
2-dC LQC 15 88
MQC 500 87
HQC 4000 96
IS 2000 85
5-mdC LQC 1.5 84
MQC 50 84
HQC 400 90
IS 100 71
5-hmdC LQC 0.15 100
MQC 1 92
HQC 8 86
IS 80 86