Flavonoid composition of six different brands of Phoenix dactylifera L. date fruit (Lulu, Khalas, Khenaiz, Al-Medina, Razaiz, and Fardh) was identified, determined, and compared. The separation was done on a Zorbax Eclipse XDB-C18 (150 × 4.6 mm ID) reversed-phase column using gradient elution of 1% aqueous formic acid (A) and acetonitrile (B). Gradient conditions were 00.00 min, 13% B; 20.00 min, 34% B; 25.00 min, 64% B; 29 min, 64% B; 35 min, 13% B; 39 min, 13% B. Monitoring was done using ultraviolet absorbance and MS/MS.
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