Key wordsbeagle, taurine, serum, sulfanilic, acid, human, plasma, aspartic, esi, nexera, observed, internal, counteract, tandem, standard, uhplc, unknown, liquid, ion, sensitive, chromatography, calibrant, mass, electrophoresis, focuses, method, dilute, spectrometry, aid, objective, centrifuge, lcms, supernatant, using, modified, analysis, figure, previously, biological, add, representative, curves, evaluation, precursor, effects, generated, injected, demonstrated, used, triple