Assertion: nucleic acid | /r/HasProperty | difficult to isolate
Facets:
value: after lysis of cells
type: TEMPORAL
value: in sample material from food
type: OTHER
Source sentences:
text: Since on the one hand, the nucleic acids are often present in very small concentrations and, on the other hand, they are often found in the presence of many other solid and dissolved substances, e.g., after lysis of cells or in sample material from food, they are difficult to isolate or to measure, in particular in biospecific assays which allow the detection of specific analytes.