| 摘要 |
The invention relates to a method for simultaneously identifying and/or differentiating endogenic and exogenic substances, in particular substances comprising at least one peptide bond in an organism. According to the invention, endogenic and exogenic substances present in collected endogenic material that is collected in particular from a human or animal organism are accumulated on a support material and said substances are subsequently identified and/or differentiated by means of their differing masses.
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