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Dear Colleagues,
I hope all is well. I am currently preparing a proposal and will include in my budget funding to purchase CV equipment. Any words of wisdom with purchasing equipment? I will be trained by my collaborator on using the CV, but plan to bring this expertise back to Wooster. So, the equipment will be used by my research students, students enrolled in my inorganic lab, analytical labs, and possibly we could extend this to the GChem lab as well. Any guidance on this topic would be appreciated. I know Chip posted some neat slides on this topic previously.
Sibrina
Tags
Hey Chip,
Thanks for your note. Who is the supplier for the CH instrument?
Sibrina
Sibrina-
I have a cypress systems instrument, very basic, computer controlled, easy to use and very inexpensive.
S.
Sibrina,
When I say CH Instrument I mean CH Instruments
http://www.chinstruments.com/
Good instrument. Simple software. Good price (non-negotiable I tried).
I have used a Cypress systems instrument. I would agree with Shelia, it is VERY basic. Not to say you can't do good stuff with it, but you can't do much with it. At least not the OMNI 101 I used in the past.
I haven't used anything like the CS1200 so I can't be sure how that compares. I am pretty sure you can't do bulk electrolysis with the Cypress.
see www.edaq.com
Check Products, integrated potentiostat.
also check teaching support pages.
Let me know if you have quesitons.
Mike Hagen
Dear Viper members,
Other options include Gamry, BASi, and Pine. I've the newer models of the first 2 and they worked well. I've used the older BASi CV50-W (which they don't sell anymore), and that was just fine. Pine has a new compact and relatively inexpensive potentiostat that might fit both research and teaching needs, although I haven't used it myself. If people find other potential suppliers besides those listed above, I would love to hear them, as I am currently (no pun intended) shopping around for a potentiostat.
Cheers,
Kyle
Of course, you could always have an engineering-minded student build a potentiostat for cheap based off of this paper, but it probably won't be as good as buying one:
http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0023…
I am still shopping around, and would love to hear if anyone has any personal experience with potentiostats besides the ones mentioned above, or comparisons between various potentiostats.
-Kyle
In my research I have used two instruments by Pine - the expensive bipotentiostat, and the compact, cheaper WaveNow. I actually prefer the WaveNow because it is much easier to use and still gives very good signal at low concentrations. The software is pretty easy to use as well.
-Angela
I have a PAR instrument and have not had any maintenance issues with it (6 years of use). But I don't have much experience with anything else. I do like having a multichannel instrument - I have two channels installed and could add more. The multichannel feature has allowed more than one student to use the instrument at once and/or one student to run multiple experiments at once.
-Anne
Thanks so much. I do want to purchase some CV equipment in the near future.
S
Hi,
I ended up purchasing an eDAQ instrument, and I will post my review of it here after I use it for a while.
-Kyle
Hi All,
So far, so good with the little eDaq I got. Its interface and software feels a little old and clunky, but I like it now that I have used it for a while. Worth it for the money.
Kyle
Hi Folks,
I have been working to develop a low cost, open source potentiostat to do these types of experiments. Designs and results can be found by following links at http://publiclab.org/profile/JSummers. We have building instructions and code online. We also have a GUI. The instrument is based on the Texas Instruments LaunchPad microcontroller board and will cost you about $50 to build. If you are interested in purchasing one, I can probably sell them for ~$100. Take a look at the stuff on the public lab site. These were designed for use in undergrad teaching labs and they are fairly straightforward to build. I will be happy to help if you contact me.
Jack