Re: [Histonet] Expiration dates of ammonium sulphide

2015-12-17 Thread Morken, Timothy via Histonet
@lists.utsouthwestern.edu] Sent: Wednesday, December 16, 2015 1:19 PM To: 'histonet@lists.utsouthwestern.edu' Subject: [Histonet] Expiration dates of ammonium sulphide Dear Mr. Morken, I found your thread on Histonet regarding ammonium sulfide for muscles. We are running a panel including ATPase

[Histonet] Expiration dates of ammonium sulphide

2015-12-16 Thread Bryan, Karen via Histonet
Dear Mr. Morken, I found your thread on Histonet regarding ammonium sulfide for muscles. We are running a panel including ATPase every week and have been having problems with the manufacturer with the supply. As of today we were told by FISHER that they are back ordered indefinitely. What

RE: [Histonet] Expiration dates of ammonium sulphide

2013-02-01 Thread Morken, Timothy
:39 PM Subject: [Histonet] Expiration dates of ammonium sulphide Hi all, I have a chemical question. We use 20% ammonium sulphide and I am wondering whether it loses its efficiency over time. Is there an expiry date on this solution and is there a test one can do to determine the concentration

[Histonet] Expiration dates of ammonium sulphide

2013-01-31 Thread Tony Henwood (SCHN)
Hi all, I have a chemical question. We use 20% ammonium sulphide and I am wondering whether it loses its efficiency over time. Is there an expiry date on this solution and is there a test one can do to determine the concentration of aged 20% solutions? I have searched and come up with nuthin!