Rapid determination of caffeine content in soft drinks using FTIR–ATR spectroscopy

Partial least-squares methods for spectral analyses. 1. Relation to other quantitative calibration methods and the extraction of qualitative information

David M. Haaland, Edward V. Thomas · Analytical Chemistry · 1988 · 2.5K citations

Natural Sciences, Chemistry, Analytical Chemistry +12

Multivariate Calibration

Julian F. Tyson · Analytica Chimica Acta · 1991 · 85 citations

Flow Injection Fourier Transform Infrared Determination of Caffeine in Soft Drinks

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Pharmacy, Pharmaceutical Analysis, Chromatographic Analysis +14

Quantitative Determination of Caffeine in Beverages Using a Combined SPME-GC/MS Method

Janusz Pawliszyn, Min J. Yang, Maureen L. Orton · Journal of Chemical Education · 1997 · 45 citations

Pharmacy, Food Science, Nutritional Sciences +7

Determination of Caffeine in Tea Products by an Improved High-Performance Liquid Chromatography Method

J. Pura Naik, S. Nagalakshmi · Journal of Agricultural and Food Chemistry · 1997 · 35 citations

Pharmacy, Nutritional Sciences, Pharmaceutical Analysis +10