luminous pen instead of radioactivity

[Eric C. Anderson]

In article <37k0ij$m3v at mserv1.dl.ac.uk>, "Stefan Gruenert (WCI)"
<sg124 at mole.bio.cam.ac.uk> wrote:

> there was a thread about luminous pens as an attractive alternative for
> radioactive markers some time ago. 
> Last week I popped into the two arts suppliers here and they both proved to
> me beyond doubt, that they can not exist (I won't go into the reasoning,
> but it was pretty annoying).

well, what can i tell you, those art folks can be a little sketchy at
times.  our lab used one of those pens until it got up and walked away a
few weeks ago.  we obtained ours from PGC scientific, P.O. Box 7277,
Gaithersburg, MD 20898-7277, USA, (800)424-3300.  the catalog number is
66-1595 for the Normal Energy Level Marker, and 66-1595-03 for the high
level.

since our pen got up and left though we've been using a product called
Glo-Bug from Scienceware/Bel-Art products.  it's a dye that you apply to
the film with a toothpick and those who use it say that it works better
than the pen, it's just not as convenient.  it's catalog number is 13354,
and the address is Bel-Art Products, Pequannock, NJ 07440-1992, USA.

hope this is helpful.

eric

-- 
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*Of course it's not true...         *
*But let's make the bastard deny it!*
*                        LBJ (1948) *
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eric c. anderson                                
anderson at pharmdec.wustl.edu
dept. of molecular bio. and pharm.               (314)362-3963 (lab)
washington univ. school of medicine              (314)862-2435 (home)
660 s. euclid box 8103                           (314)362-7058 (FAX)
st. louis, mo 63110