Assertion: bromophenol blue | /r/CapableOf | carry slight negative charge
Facets:
value: at moderate ph
type: TEMPORAL
Source sentences:
text: Since bromophenol blue carries a slight negative charge at moderate pH, it will migrate in the same direction as DNA or protein in a gel; the rate at which it migrates varies according to gel density and buffer composition, but in a typical 1% agarose gel in a 1X TAE buffer or TBE buffer, bromophenol blue migrates at the same rate as a DNA fragment of about 300 base pairs, in 2% agarose as 150 bp.