I had a student that was working in a lab with old dry powders. One that I recall had a "date opened" of 1942.
WILLIAM DESALVO <wdesalvo....@hotmail.com> Sent by: histonet-boun...@lists.utsouthwestern.edu 02/02/2012 03:04 PM To <rjbu...@yahoo.com>, histonet <histonet@lists.utsouthwestern.edu>, <talulahg...@gmail.com> cc Subject RE: [Histonet] reagents without expiration dates Many, many, many years ago back in the 80's, I worked for Sigma-Aldrich and was visiting Charles Churukian's lab. He had a full wall of his lab with shelves, floor to ceiling, of dried and liquid Sigma reagents. He had every lab chemical and reagent I knew and was very proud that he was a great Sigma customer. The labels were none that I had seen in 10 yrs working at Sigma, so I took a few containers down and read the manufacturing code. The oldest was sodium bisulfate, gallon container, manufactured in 1946. Most were 20-30 yrs old then and in large quantities. I have always thought to myself, with many more customers like Chuck, Sigma could go out of business. I miss Chuck, but I bet he is still teaching the heavens everything they need to know about Histology and Staining. I don't know if that beats your stuff, but I bet the chemicals Chuck left behind are still in use. William DeSalvo, B.S., HTL(ASCP) > Date: Thu, 2 Feb 2012 13:14:53 -0800 > From: rjbu...@yahoo.com > To: histonet@lists.utsouthwestern.edu; talulahg...@gmail.com > Subject: Re: [Histonet] reagents without expiration dates > CC: > > Ha.Ha,Ha!!!!!!!!!!! > I used to prepare staining solutions with some "Merck-Darmstad" anilines manufactured just after the "Great War", i.e. the FIRST World War (about 1925 before the World Great Depression). > Try to beat that!. > René J. > > --- On Thu, 2/2/12, Emily Sours <talulahg...@gmail.com> wrote: > > > From: Emily Sours <talulahg...@gmail.com> > Subject: Re: [Histonet] reagents without expiration dates > To: histonet@lists.utsouthwestern.edu > Date: Thursday, February 2, 2012, 3:33 PM > > > I've always wanted to have a contest to see who had the oldest reagents. > My lab once had something that was 20 years old. > > Emily > > The whole point of this country is if you want to eat garbage, balloon up > to 600 pounds and die of a heart attack at 43, you can! You are free to do > so. To me, that’s beautiful. > --Ron Swanson > > > > On Thu, Feb 2, 2012 at 2:07 PM, WILLIAM DESALVO <wdesalvo....@hotmail.com>wrote: > > > > > Per SOP, we relabel, list date of receipt, test for quality and then apply > > a 12 month expiration date. We re-test after 12 months and continue to use, > > with 12 month dating, as long as the reagent meets quality standards set in > > the SOP. > > > > William DeSalvo, B.S., HTL(ASCP) > > > > > > > > > From: kst...@mcw.edu > > > To: histonet@lists.utsouthwestern.edu > > > Date: Thu, 2 Feb 2012 12:56:58 -0600 > > > Subject: [Histonet] reagents without expiration dates > > > > > > Could anyone share a policy to deal with regents that do not have a > > manufacturer's expiration date? > > > CAP checklist ANP 21382 > > > > > > Thanks, > > > Kathryn Stoll, HT(ASCP) > > > Depatment of Pathology > > > Medical College of Wisconsin > > > 9200 W Wisconsin Ave > > > Milwaukee WI 53226 > > > 414.805.1525 > > > kst...@mcw.edu > > > > > > _______________________________________________ > > > Histonet mailing list > > > Histonet@lists.utsouthwestern.edu > > > http://lists.utsouthwestern.edu/mailman/listinfo/histonet > > > > _______________________________________________ > > Histonet mailing list > > Histonet@lists.utsouthwestern.edu > > http://lists.utsouthwestern.edu/mailman/listinfo/histonet > > > _______________________________________________ > Histonet mailing list > Histonet@lists.utsouthwestern.edu > http://lists.utsouthwestern.edu/mailman/listinfo/histonet > _______________________________________________ > Histonet mailing list > Histonet@lists.utsouthwestern.edu > http://lists.utsouthwestern.edu/mailman/listinfo/histonet _______________________________________________ Histonet mailing list Histonet@lists.utsouthwestern.edu http://lists.utsouthwestern.edu/mailman/listinfo/histonet
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