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Fluoresbrite calibration beads 50nm to 6=B5m which fluoresce yellow green=
=20
and excite well at 488 and reasonably at 325 (they are dazzlingly bright=20
unless you use the smaller spheres I use 1 micron beads order code 18860)
Fluoresbrite Polychromatic Microspheres same size range but fluorescing=20
orange with UV excitation, red with 488.
The beads are in a 2.5% suspension and one drop dilutes to seemingly a=20
litre of useful concentration.In 1991 1ml cost about 70 pounds and I've=20
still got some of it left.
Polysciences were (and I presume still are) to be reached at:
24 Low Farm Place
Moulton Park
Northampton
NN3 1HY
tel 01604 646496
Speak to you soon
Ray
On Tue, 23 May 1995, S.P. Monard wrote:
> Greetings from Cambridge
> Can anyone suggest a source of beads that excite well with both uv and=20
> 488nm. I need reasonable CVs, I found the Coulter beads quite good but=20
> thought they were rather expensive considering how dilute they were.
> Thanks in advance
>=20
> Simon Monard
> Department of Medicine
> Cambridge
>=20
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