RP-LC	Reversed-Phase Liquid Chromatography
API	Active Pharmaceutical Ingredient
KPSS	Key Predictive Sample Set
QSRR	Quantitative Structure Retention Relationship
R	Correlation Coefficient
ES	Evolutionary Search
MLR	Multiple Linear Regression
RMSE	Root Mean Square Error
SVM	Support Vector Machine
GPR	Gaussian Processes Regression
RF	Random Forest
PLS	Partial Least Squares
RtModelEXP	Retention model built from experimental retention times
RtModelQSRR	Retention model built from QSRR predicted retention times
RC	Resolution Coefficient
Rslimit	Minimal satisfactory resolution between two components
Rsi,j	Actual chromatographic resolution between two components in the mixture