By Jeff Rosenbloom on Sunday, September 5, 1999 - 10:48 am:
Can someone please let me know if there is a method for detecting caffiene in solution using a method similar to a pH test strip? I am interested in detection limits between 1-100 mg/l.
Thanks-Jeff
By Anonymous on Saturday, September 11, 1999 - 05:40 pm:
Not that I'm aware of. Too many possible interferences. That's why chromatography is so popular!
By Anonymous on Thursday, October 7, 1999 - 02:19 pm:
Caffeine analysis from coffee or soft drinks can be done by silica TLC, in ethyl acetate/5% methanol.
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