Spectrophotometric flow injection determ
✍
E Luque-Pérez; A Rı́os; M Valcárcel; L.-G Danielsson; F Ingman
📂
Article
📅
1999
🏛
Elsevier Science
🌐
English
⚖ 290 KB
A method for the determination of caffeine in coffee and tea samples based on the use of supported liquid membranes coupled to a flow system has been developed. The sample may be analysed both as solid and slurry. In the case of solid sample, this is directly placed in the membrane unit, and when th