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.
