Can anyone suggest a technique to enumerate bacteria in a colloidal silica
solution. The solution is composed of colloidal silica (15 nm particle
size) in water containing an amine. The pH is 10 and the solution has a
susdsy appearance when shaken. The concentration of silica is unknown to
me but the solution is slightly opaque. We are interested in techniques
to enumerate any bacteria present in the slurry using epifluorescence or
culturing methods. The solution will rapidly clog a 0.2 u membrane filter.
Thanks.
Rocky Baker
