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Sibrina Collins, The Charles H. Wright of Museum of African American History
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Purchasing CV Equipment

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

Chip Nataro, Lafayette College
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I had been using a PAR instrument but recently purchased a CH Instrument. Love it. Price is very reasonable, the software works very nicely and it has much more flexibility than my more expensive PAR did.
Sibrina Collins, The Charles H. Wright of Museum of African American History
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Hey Chip,

Thanks for your note. Who is the supplier for the CH instrument?

Sibrina

Sheila Smith, University of Michigan- Dearborn
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Joined: 06/17/2009 - 11:55pm

Sibrina-

 I have a cypress systems instrument, very basic, computer controlled, easy to use and very inexpensive.

S. 

Chip Nataro, Lafayette College
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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. 

Michael Hagen, edAQ, Inc
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Joined: 05/31/2011 - 12:31pm

see www.edaq.com

Check Products, integrated  potentiostat.

also check teaching support pages.

Let me know if you have quesitons.

Mike Hagen

Kyle Grice, DePaul University
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Joined: 07/22/2010 - 5:29pm

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

Kyle Grice, DePaul University
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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.0023783

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

Angela Jovanovic-Bischof, Penn State
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Joined: 05/24/2013 - 9:57am

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

Anne Bentley, Lewis & Clark College
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Joined: 04/01/2008 - 8:09pm

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

Sibrina Collins, The Charles H. Wright of Museum of African American History
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Thanks so much. I do want to purchase some CV equipment in the near future.

S

Kyle Grice, DePaul University
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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

Kyle Grice, DePaul University
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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

Jack Summers, Western Carolina University
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Joined: 05/16/2014 - 12:50pm

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

Chris Mullins, University of Kentucky
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Joined: 03/14/2008 - 3:42pm
Jack, I'm interested for $100 potentiostat, do you have pictures, details on what I'd be getting? How much for shipping? Please let me know, email is fine! Chris