Paleonet: rose Bengal

Charlotte Brunner Charlotte.Brunner at
Fri May 15 23:40:58 UTC 2009

Dear Colleagues:

I request your advice on the purchase of rose Bengal stain (to detect 
foraminiferal cytoplasm).  Several years ago, I bought some that is 
relatively inexpensive, but it did not dissolve well and tended to 
have a low pH compared to another batch that I was given ( in a 
mystery bottle with no brand information) that had neither 
drawback.  I notice that there are at least a half dozen chemical 
houses that sell 25 grams of powder at prices ranging from $17 to 
$160 USD, including EMD, Spectrum, Alfa Aesar, MP Biomedicals, 
Thermo, and JT Baker.   What do you recommend?

Many thanks,
Charlotte Brunner

Charlotte Brunner
Professor of Marine Science
Department of Marine Science
1020 Balch Blvd.
John C. Stennis Space Center, MS 39529 

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