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Table 1 Matrix effect on FI/MS detection of (C) and (G) in Lingzhi fermentation solution and collagen by applying FI/MS/ANN quantitation strategies at six (C) and (G) concentration levels (3, 33, 83, 166, 333 and 666 mg kg -1 )

From: A flow-injection mass spectrometry fingerprinting scaffold for feature selection and quantitation of Cordyceps and Ganoderma extracts in beverage: a predictive artificial neural network modelling strategy

Concentration μg mL-1(mg kg-1) (C) (G)
2 (3) 0 0
20 (33) 2 3
50 (83) −4 −5
100 (166) 0 −1
200 (333) 2 2
400 (666) −1 −2
  1. The ion suppression (+) or enhancement (−) effect was assessed as 100 – [(predicted concentration (Cpm) of matrix-matched standard)/(predicted concentration (Cps) of matrix-free standard)] x 100. The values reported in the table have no unit.