Sarin Sukumar A <sarinsukumar <at> gmail.com> writes:

>=20
> Hi
>=20
> Once i Asked about detecting bubbles in a liquid. I really got very good
> good suggestions from this forum.
<SNIP>

> liquids, like water and oil. Does any body have any idea of trapping bubb=
les
> like this.

You can use a 0.75 - 1.0% solution of agarose in water.  Dissolve agarose b=
y
boiling, when it cools down to room temp, it will be solid and you will hav=
e a
test tube with reproducible bubbles in it.  If the detection method can tol=
erate
higher concentration of impurities in water, then you can use food agar (2-=
5%),
if lower concentrations of agar desired, use higher quality agarose (molecu=
lar
biology grade should do) and lower operating temperature. =20

Knowing method of detection of bubbles will help narrow down suggestions.=20

Sergey Dryga
http://beaglerobotics.com

--=20
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