[Bio] 4. Re: pH probe confusion

Rikke Rasmussen rikke.c.rasmussen at gmail.com
Fri Apr 15 22:44:48 PDT 2011


Hey guys,

Sorry for the lack of new on the NIR probe, have spent two nights in a row
on the phone to Denmark getting all my paperwork in order to file my
immigration case on time (Monday), so I haven't gotten anything done yet
except draw a sketch of my idea (added it to the last  blog post, too) and
buy ~$2.00 worth of acrylic to play with. Hope you'll bear with me for
another day, am out to buy fish-friendly silicone first thing tomorrow =)

Conc. the scale, Mike, I'd love to have it for Biobridge in general, as it's
got way better resolution than the ones we have already, but I don't think
we need the temp. probe - believe we've got enough thermometers as it is.

Do you want to add the links, Rolf, or should I? Am planning to rework the
project wiki pretty heavily tomorrow anyway (it's not quite as "clean" as
I'd like, and certainly not up-to-date), so I could do that at the same
time.

Anyhow - more tomorrow - pleasant weekend, all =)

/Rikke


On Sat, Apr 16, 2011 at 12:13 AM, Rolf <rolfvw at gmail.com> wrote:

> Hi Frantisek!
> I see you are staying in touch with NB :-)
>
> This is good information, thanks.
> Luckily, we have 2 chemists and 1 biologist on our project, so I'm sure
> they
> have experience with this.
> But it would be good to add these links to our Wiki.
>
> Ciao,
> -rolf
>
> On Fri, Apr 15, 2011 at 2:09 PM, Frantisek Apfelbeck <algoldor at yahoo.com>
> wrote:
> > Hi to all,
> > I do not know what is exactly the type of your probe but these storage
> routine
> > should apply for most of electrodes (some of it you have quoted before):
> >
> > http://www.all-about-ph.com/ph-electrode-storage.html  (after quick
> search)
> >
> > What I do remember for sure is that if you want to get a proper accurate
> > results, you should/have to calibrate the probe each time when you use it
> and
> > that should be done against a reference "buffers" of exactly known pH
> >
> > http://www.phadjustment.com/pH_Probe_Service.htm  (after quick search)
> >
> > I guess that you know the stuff just be careful because an accurate and
> > functional pH probe was quite a challenge even in a well establish
> laboratories
> > and "very exact protocols" were applied. I guess that Glen or his
> colleges may
> > know more.
> >
> > Best of luck,
> >
> > Frantisek
> >
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> > Bio at lists.noisebridge.net
> > https://www.noisebridge.net/mailman/listinfo/bio
> >
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