Talk:Kastle-Meyer test
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The previous form of this page contained a great deal of misinformation, though the author can be forgiven, as there is a great deal of misinformation about this test floating around. I have personal experience in preparing the analytical solutions to perform this test, and was nearly driven crazy trying to divine why nothing I tried gave me a positive test using authentic samples of blood (I was cheap and decided to make my own test kit). It wasn't until I came across a research paper assessing the relative effectiveness of various forensic tests did I see that the phenolphthalein solution was boiled with zinc dust prior to use. I'm really at a loss for why this isn't popularly known, maybe it's some kind of half-assed trade secret on the part of the test kit manufacturers? --Uberhobo 17:55, 25 August 2007 (UTC)
[edit] Update April 2008
Thanks to User:Sekiyu for the revisions. I'm not familiar with the name 'phenolphthalin' for the reduced form of phenolphthalein and I'd be cautious in using it as it is important to make the distinction, and yet the names are so very similar. (In the same way that 'hypo-' and 'hyper-' prefixes are disparaged in many medical situations).
Ewen (talk) 09:42, 29 April 2008 (UTC)
I agree that the similarity between the two names is confusing, but that is the accepted name. Whenever possible, I tried to make the distinction between the reduced -lin form and the oxidized -lein form, and no one wants to read "2-(Bis[4-hydroxyphenyl]methyl)benzoic acid" vs. "3,3-Bis(4-hydroxyphenyl)-1(3H)-isobenzofuranone." Even Sigma Aldrich's chemical entry [1] for it warns against the confusion between the two. Sekiyu (talk) 15:28, 29 April 2008 (UTC)
