
Keywords: ESI; electrospray ionization; BGE; background electrolyte; Mass spectrometry; Electrospray; Coffee adulteration; Soybean; Corn; Monosaccharide; Capillary electrophoresis; Fucose (PubChem CID: 17106); Galactose (PubChem CID: 439357); Arabinose (PubChem CID