Oligo stability in water at -20 C

Hiranya Roychowdhury hroychow at NMSU.EDU
Wed Aug 12 12:41:59 EST 1998

At 05:04 PM 8/12/98 +0100, Richard P. Grant wrote:
>In article <19980812151539.19492.rocketmail at send102.yahoomail.com>,
>rjdudley at yahoo.com wrote:
>: > Pure water is pH 7.0 by definition.   (Equal concentration of H+ and
>: > OH-).  If your pH meter reads 6, then it is the pH meter that is
>: failing,
>: > not necessarily the water.  And I will add that most pH meters
>: cannot give
>: > a precise reading in such weakly buffered conditions, so do not feel
>: that
>: > you have an inferior product!
>: The definition is true; however, Milli-Q is not "pure by definition"
>well, I never actually claimed it was.  I said the pH of pure water, by
>definition is 7, /not/ that Milli-Q water is pH 7 by definition.

Oh, nice, Rich! ;)

Dr. Hiranya Sankar Roychowdhury
Plant Genetic Engineering Lab.
New Mexico State University
Las Cruces, NM 88003
Ph. (505) 646-5785
hroychow at nmsu.edu

More information about the Methods mailing list