Comments on the residual bilinearization method

Through theoretical analysis and computer simulation, this short communication comments on the residual bilinearization (RBL) method and compares it with non‐bilinear rank annihilation (NBRA) for the treatment of second‐order calibration with non‐bilinear data. It is found that these two methods are mathematically equivalent but have different noise propagation properties. The second‐order advantage, namely quantitation in the presence of unknown interferences, can be carried over to non‐bilinear data only if there exists a net analyte rank (NAR) for the analyte of interest.