Help needed to understand a chromatography cabinet

[corinn1]

I am trying to collect data / information on what is really needed in a chromatography cabinet. I have a brief survey that I would appreciate being filled out. It should take only 5-10 minutes to complete. Any feedback is GREATLY appreciated!!

[GOM]

Hi,

Would you just clarify what you mean by this e.g. spares supplies? I sure we would be glad to help you.

Regards,

Ralph

[HbJ]

Please give us more details!

Chromatography spans from paper chromatography over liquid chromatography to gas chromatography and the hyphenated techniques.

So a GC/MS user will have a nice share of vacuum equipment (maybe *gasp* even a replacement turbo molecular pump) with vacuum-tight ferrules (no graphite) while an ordinary GC user may mostly use graphite ferrules.

Another question is where you want to draw the line: In my cabinet you'll even find replacement coils for the solenoid valves I have in use for my GCs.

[corinn1]

I have a survey that just goes over some very basic questions and features about chromatography refrigeration that I would like to have some users of the equipment take. I would be happy to email this. I can be contacted @ cfischer@mccallrefrigeration.com Thank You!!

[Peter Apps]

Now I am really puzzled ! I had initially thought that a chromatography cabinet might be an enclosure for TLC (which I do not do, so I could not help with the survey). Others posters thought that it was a cupboard full of spare parts. Now you tell us that it is to do with refrigeration. Is this for sub-ambient analyses, or keeping samples in !?

If you tell us what the "chromatography cabinet" is supposed to do, we can decide whether it is something that we need, and whether we can help with the survey.

Peter

[corinn1]

It is a refrigerator that is used to hold samples. They generally have two duplex outlets on either side and a GFI receptacle. I am not a user of the equipment. I am working on a project that is trying to understand what users of this type of equipment need. I would like to have input from end users to get their opinions and thoughts.

[Peter Apps]

Hi Corinn

This process is going to take a really long time if we get the information one tiny drop at a time.

You say that you are trying to understand the needs of end users - the first need is for information; post a full description of this "cabinet" and exactly what it is supposed to do, then we can help.

I am presuming that this thing actually does exist - or are you just fishing for design specs ?

Peter

[philippem]

provide us with this info could be of help :
"I have a brief survey that I would appreciate being filled out. It should take only 5-10 minutes to complete"


I agree completely with Peter

Regards

Philippe

[Mary Carson]

Back in the old days of hand-poured (packing is definitely not the right term here....), often open and gravity-fed, columns used for protein purification, one would set the whole apparatus up in a refrigerated cabinet because the separations took hours and your sample would degrade if you didn't refrigerate it. I always thought folks stopped doing that kind of chromatography when HPLC became widely used for protein work.

[corinn1]

Below are some links to some of the refrigeration units I am referring to. I have also attached the survey. I want to understand the needs of the end consumer and what they require in a cabinet.


Click here to view sample cabinet

Here is another sample refrigerator



Chromatography Survey

Name__________________________________ Business_____________________________

1. What is you current role with chromatography refrigeration? User Buyer Seller

2. What brand(s) do you typically use / deal with? ____________________________________

3. What cubic foot capacity are you most likely to use? 19 26 42 72 Other____
(Please circle all that apply)

4. What can the exterior walls be made from? Stainless Steel Aluminum Molded Plastic
(Please circle all that apply)
Painted Steel Painted Aluminum

5. What can the interior walls be made from? Stainless Steel Aluminum Molded Plastic
(Please circle all that apply) Painted Steel Painted Aluminum

6. What can the interior floor be made from? Stainless Steel Aluminum Molded Plastic
(Please circle all that apply) Painted Steel Painted Aluminum

7. Should the interior floor contain a drain hole? Yes No

8. If “Yesâ€

[Peter Apps]

Hi Corinn

Thanks, that wasn't so painfull was it

I do GC and a little bit of HPLC so I would never use one of these.

Peter

[gcguy]

20 years ago I used to do a lot of column chromatography quantifying impurities in dyes and pigments as well as doing strength analysis. I have never even heard of doing this sort of work at low temp. It might be pertinent to find out how many of these units are actually sold in year.

Good luck

GCguy