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Typical HPLC profile of the acidic soluble fraction of human whole saliva from human adults. The UV profiles revealed by diode-array detection at 214 (upper lane) and 276 nm (bottom lane) suggests the hypothetical identity of several salivary peptides and proteins based on their polarity and differential UV absorbance [1]. The attributions were confirmed by ESI ion trap and MALDI-TOF mass spectrometry (see Figure 2). (NL: normalization level).
