[ccp4bb] FW: [ccp4bb] dynapro DLS cuvettes
Some memories from the dark recesses of my mind… Hope it helps! Bryan From: Prince, D Bryan Sent: Thursday, August 14, 2014 6:07 PM To: 'Gloria Borgstahl' Subject: RE: [ccp4bb] dynapro DLS cuvettes Dear Gloria, I seem to remember that we had a DynaPro DLS system and used disposable plastic cuvettes (low volume). I think these are the ones we used, and we were very happy with them. If memory serves, we could do about 25uL samples, and they were individually packed so cleanliness was not a concern. http://www.sigmaaldrich.com/catalog/product/sigma/z605050?lang=en®ion=US Sigma has a supply of quartz cuvettes here that you might find helpful: http://www.sigmaaldrich.com/analytical-chromatography/analytical-products.html?TablePage=104902943 GOOD LUCK Bryan From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of Gloria Borgstahl Sent: Thursday, August 14, 2014 5:35 PM To: CCP4BB@JISCMAIL.AC.UK<mailto:CCP4BB@JISCMAIL.AC.UK> Subject: [ccp4bb] dynapro DLS cuvettes Does any one know of a source of these cuvettes? Protein Solution doesn't exist anymore and Wyatt no longer has these. -- Confidentiality Notice: This message is private and may contain confidential and proprietary information. If you have received this message in error, please notify us and remove it from your system and note that you must not copy, distribute or take any action in reliance on it. Any unauthorized use or disclosure of the contents of this message is not permitted and may be unlawful.
Re: [ccp4bb] dynapro DLS cuvettes
Here's another one, catalog number 105-250-15-40: http://www.hellma-analytics.com/kuevetten/136/en/pg_id,41$g_id,24$item_id,63/fluorescence-cells.html#63 We use that for light scattering on a Zetasizer Nano. Andreas On 14/08/2014 10:35, Gloria Borgstahl wrote: Does any one know of a source of these cuvettes? Protein Solution doesn't exist anymore and Wyatt no longer has these. -- Andreas Förster Crystallization and X-ray Facility Manager Centre for Structural Biology Imperial College London
Re: [ccp4bb] dynapro DLS cuvettes
At hellma-analytics dot com, the closest match seems to be catalog number 176-353-15-40, but, that's an HPLC flow cell. Daniel Anderson wrote: Hello, Gloria and everybody, I'm typing most of this reply from memory. When I tried to buy one, my recollection was that it was available from Hellma, but I couldn't (and still can't) find my Hellma paper catalog, and for some reason I did not find the Hellma web site when I wanted to buy a cuvette. I have since learned to spell "Google". I have the starnacells dot com paper catalog in front of me. What you want is almost catalog number 16.12F-Q-1.5/Z15. The Z parameter should probably be closer to 14 than 15mm. That catalog number from Starna is probably the one that I bought some years ago, and here is my recollection of what happened: The cell arrived, and I found that light did not go through unless I pushed it sideways. I measured the old Dynapro cuvette, and it was 12.45x12.45mm. The cell from Starna was 12.25x12.35mm. I returned it and Starna sent me a replacement that was 12.35x12.25mm. When this comedy of rectangular cuvettes tired me I returned the nth cell that they sent me and gave up trying to buy one. One more detail: the above recollections are about a 13,714-year old DynaPro with the microcuvette device added as post-translational modification. It's so old that the serial number is probably negative. I don't know if a more recent instrument has the same cuvette holder geometry. I hope that partial information helps, Dan Gloria Borgstahl wrote: Does any one know of a source of these cuvettes? Protein Solution doesn't exist anymore and Wyatt no longer has these.
Re: [ccp4bb] dynapro DLS cuvettes
Hi, A crazy solution may be to make a cuvette with a 3D printer. I'm not sure if the available resins are transparent to DLS. Best wishes, Reza Reza Khayat, PhD Assistant Professor The City College of New York Department of Chemistry, MR-1135 160 Convent Avenue New York, NY 10031 Tel. (212) 650-6070 www.khayatlab.org Original message >Date: Thu, 14 Aug 2014 15:13:48 -0700 >From: CCP4 bulletin board (on behalf of Daniel >Anderson ) >Subject: Re: [ccp4bb] dynapro DLS cuvettes >To: CCP4BB@JISCMAIL.AC.UK > >Hello, Gloria and everybody, > >I'm typing most of this reply from memory. > >When I tried to buy one, my recollection was that it was available from >Hellma, but I couldn't (and still can't) find my Hellma paper catalog, >and for some reason I did not find the Hellma web site when I wanted to >buy a cuvette. I have since learned to spell "Google". > >I have the starnacells dot com paper catalog in front of me. What you >want is almost catalog number 16.12F-Q-1.5/Z15. The Z parameter should >probably be closer to 14 than 15mm. > >That catalog number from Starna is probably the one that I bought some >years ago, and here is my recollection of what happened: The cell >arrived, and I found that light did not go through unless I pushed it >sideways. I measured the old Dynapro cuvette, and it was 12.45x12.45mm. >The cell from Starna was 12.25x12.35mm. I returned it and Starna sent me >a replacement that was 12.35x12.25mm. When this comedy of rectangular >cuvettes tired me I returned the nth cell that they sent me and gave up >trying to buy one. > >One more detail: the above recollections are about a 13,714-year old >DynaPro with the microcuvette device added as post-translational >modification. It's so old that the serial number is probably negative. I >don't know if a more recent instrument has the same cuvette holder geometry. > >I hope that partial information helps, > Dan > > > > >Gloria Borgstahl wrote: >> Does any one know of a source of these cuvettes? >> Protein Solution doesn't exist anymore >> and Wyatt no longer has these.
Re: [ccp4bb] dynapro DLS cuvettes
Hello, Gloria and everybody, I'm typing most of this reply from memory. When I tried to buy one, my recollection was that it was available from Hellma, but I couldn't (and still can't) find my Hellma paper catalog, and for some reason I did not find the Hellma web site when I wanted to buy a cuvette. I have since learned to spell "Google". I have the starnacells dot com paper catalog in front of me. What you want is almost catalog number 16.12F-Q-1.5/Z15. The Z parameter should probably be closer to 14 than 15mm. That catalog number from Starna is probably the one that I bought some years ago, and here is my recollection of what happened: The cell arrived, and I found that light did not go through unless I pushed it sideways. I measured the old Dynapro cuvette, and it was 12.45x12.45mm. The cell from Starna was 12.25x12.35mm. I returned it and Starna sent me a replacement that was 12.35x12.25mm. When this comedy of rectangular cuvettes tired me I returned the nth cell that they sent me and gave up trying to buy one. One more detail: the above recollections are about a 13,714-year old DynaPro with the microcuvette device added as post-translational modification. It's so old that the serial number is probably negative. I don't know if a more recent instrument has the same cuvette holder geometry. I hope that partial information helps, Dan Gloria Borgstahl wrote: Does any one know of a source of these cuvettes? Protein Solution doesn't exist anymore and Wyatt no longer has these.
[ccp4bb] dynapro DLS cuvettes
Does any one know of a source of these cuvettes? Protein Solution doesn't exist anymore and Wyatt no longer has these.
