histochemical stain for potassium

John Cheeseman j-cheeseman at uiuc.edu
Sun Mar 27 21:49:15 EST 1994

Sodium cobaltinitrite is the actual stain.  It sounds from your note like
you might have got the recipe from Meidner's "class experiments in plant
physiology."  If so, you might write or call colin willmer at Stirling and
ask him for what he uses now.  Also, BDH apparently sells/sold a strip on
which one places a drop of liquid to quantify K... Merckoquant strip is
what it is called in Meidnger's book

In article <2munin$24n at mserv1.dl.ac.uk>, AW14 at VAX.YORK.AC.UK wrote:

> Does anyone know of a 'user-friendly' way to stain potassium in tissue
> samples ? I have details of a method which can be used to locate k in
> stomata but it contains ammonium sulphide which is apparently not
> terribly pleasant ! Any other ideas would be gratefully received. Thankyou
> in advance, 
> Angela 
> aw14 at uk.ac.york.vax

John Cheeseman                                 "We haven't the money,
Department of Plant Biology                     so we've got to think."
University of Illinois                          -- Lord Rutherford (1962)
Urbana IL 61801 USA

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