Authors: Wang, HF Helliwell, K

Citation: Hf. Wang et K. Helliwell, Determination of flavonols in green and black tea leaves and green tea infusions by high-performance liquid chromatography, FOOD RES IN, 34(2-3), 2001, pp. 223-227

Authors: Wang, HF Provan, CJ Helliwell, K

Citation: Hf. Wang et al., Tea flavonoids: their functions, utilisation and analysis, TRENDS FOOD, 11(4-5), 2000, pp. 152-160

Authors: Wang, HF Helliwell, K

Citation: Hf. Wang et K. Helliwell, Epimerisation of catechins in green tea infusions, FOOD CHEM, 70(3), 2000, pp. 337-344

Authors: Wang, HF Helliwell, K You, XQ

Citation: Hf. Wang et al., Isocratic elution system for the determination of catechins, caffeine and gallic acid in green tea using HPLC, FOOD CHEM, 68(1), 2000, pp. 115-121