I assume that Raman would be great if one is testing a bulk substitution like if milk is replaced with palm oil. What technique is good for traces? Like traces of heavy metals or small carcinogenic compounds in food?
-- I didn't look closely but that DIY Raman looks like an overkill. Raman would be a fairly easy to make with nonmoving parts. You need a lens, grating, filter and CCD (ok if you don't have a ccd and have a single detector, then you need a motor) and laser of course. I would buy from ebay.
On Friday, August 28, 2015 at 8:30:55 PM UTC-5, Branko wrote:
On Friday, August 28, 2015 at 8:30:55 PM UTC-5, Branko wrote:
Philippo, you might want to check this MOOC course ,scheduled for October :
https://www.futurelearn.com/courses/food-fraud
thanx to all posting in this thread , and pity GMO took over .
Hopefully DIY & afforable non-labeling tech like Raman spectrometer is close :
https://hackaday.io/project/1279-ramanpi-raman- spectrometer
http://www.sciencemadness.org/talk/viewthread.php?tid=23422
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