spectronic 20

[Gary Cote]

Roxanne,
I use Spec 20D's in Cell Biology.  The D is for digital.  I've found
them 
quite tough and reliable.  The digital readout is easy for students to 
understand and read, although getting the blank to exactly 0 drives them 
nuts.  They look nicer in the business gray with the angles compared to
the 
old  Caucasian-flesh-colored curvy things (my subjective opinion).

Watch out what wavelengths you want to use.  We measure a lot of 
absorbances at long wavelengths (500-600), and you need to be sure to
get 
special filters for that.

Also, be careful when mixing spectrophotometers.  Every semester it
seems, 
someone will stick a square cuvette into Spec-20D's round hole.

>Dear plant-ed folks:
>
>Have any of you used a spectronic 20?  What did you think?  Our spec 20's
>are wearing out and we need replacements.  The spectronic 20 is in the
>Carolina catalogue in two versions, one looks like the old spec 20 and the
>has a digital read-out.
>
>Roxanne
>
>**************************************************************************
>Roxanne H. Fisher                                  rfisher at chatham.edu
>Assistant Professor of Biology                  phone (412)365-1893
>Chatham College                                     fax (412)365-1505
>Woodland Road
>Pittsburgh, PA 15232
>***********************************************************************
>
>
>---

Dr. Gary Coté
Assistant Professor
Department of Biology
Box 6931
Radford University
Radford, VA 24142-6931

Ph: 540-831-5630
Fax: 540-831-5129
email: gcote at radford.edu
http://www.radford.edu:8800/~gcote/

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