| graphQC | Representate the compounds area (normalized or not) as a function of their injection order to study trends. |
| QCcorrectionLOESS | Generate values for metabolites normalization |
| QCcorrectionMultiLOESS | Generate values for metabolites normalization |
| QCcorrectionMultiPoly3 | Generate values for metabolites normalization |
| QCcorrectionMultiPoly4 | Generate values for metabolites normalization |
| QCcorrectionMultiPoly6 | Generate values for metabolites normalization |
| QCcorrectionSinglePoly3 | Generate values for metabolites normalization |
| QCcorrectionSinglePoly4 | Generate values for metabolites normalization |
| QCcorrectionSinglePoly6 | Generate values for metabolites normalization |
| QCregression | Equation to be used internally to predict values from a regression curve of grade 3 |
| QCregression4 | Equation to be used internally to predict values from a regression curve of grade 4 |
| QCregression6 | Equation to be used internally to predict values from a regression curve of grade 6 |