Assertion: hydrocarbon | /r/CapableOf | pass through silica gel
Facets:
value: at the same time
type: TEMPORAL
value: in some samples
type: LOCATION
Source sentences:
text: CCME methods comment that the use of silica gel to remove polar compounds should be done carefully with well-defined procedures, otherwise the hydrocarbons will be lost and at the same time some non-hydrocarbons may pass through silica gel in some samples .