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4hv.org :: Forums :: Chemistry
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Gene Sequencers Platinum / Wollaston Electrode Wires.

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radiotech
Wed Jul 17 2013, 09:07PM Print
radiotech Registered Member #2463 Joined: Wed Nov 11 2009, 03:49AM
Location:
Posts: 1546
I have a few bit and pieces of sequencers, Poker Face, and
other types, likely not used for 30 or more years. They are strung
with electrode wire, that I have been told in another forum is
Wollaston wire. These probably were taken from a lab after some
use. Is there a way of determining how much silver is left on
the platinum base wire? I have considered measuring the diameter
of the wire with a micrometer but know nothing about what it was
when new.

Does anyone know how the biology labs decided when the wire
needing changing?

The object is getting some platinum wire from these things for experiments.

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Billybobjoe
Mon Aug 19 2013, 12:30AM
Billybobjoe Registered Member #396 Joined: Wed Apr 19 2006, 12:55AM
Location: Pittsburgh, PA
Posts: 176
Why do you need to know how much silver is remaining? It may not be the easiest to obtain, but a dip in nitric acid will remove the silver and leave the platinum untouched.
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radiotech
Fri Aug 23 2013, 09:18PM
radiotech Registered Member #2463 Joined: Wed Nov 11 2009, 03:49AM
Location:
Posts: 1546
One use suggested was to make an old type of radio detector like this:
Link2
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Ash Small
Tue Aug 27 2013, 11:00AM
Ash Small Registered Member #3414 Joined: Sun Nov 14 2010, 05:05PM
Location: UK
Posts: 4245
radiotech wrote ...

One use suggested was to make an old type of radio detector like this:
Link2

That is fascinating, RT, a 'wet chemistry' amplifier.
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radiotech
Wed Aug 28 2013, 08:51PM
radiotech Registered Member #2463 Joined: Wed Nov 11 2009, 03:49AM
Location:
Posts: 1546
Not really an amplifier, (or it might have been), if I make one that works
it should be easy to measure.

Liquid amplifiers, Solions, were developed in the Cold War. I expect that the
reinvention of neural cells, will show more promise..

The neural cell changes itself every time it is used.

Imagine the joy of recreating future computers using old gene sequencing
apparatus. Or perhaps motivating them to do it by them selves.
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