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English to Greek translations [PRO] Science - Biology (-tech,-chem,micro-) / -
English term or phrase:native sample
In many instances, properties of biological materials cannot be expressed in SI units as the molecular structure of their analytes is not exactly known and may be different in a reference material from that in a native sample of human origin (e.g. state of glycosylation of a protein); then the traceability chain ends at a lower level, e.g., at an arbitrary international unit (int. unit).