HPLC Analysis of Cosmetic Preservatives on Ascentis® Express RP-Amide at Elevated Flow and Temperature (1.2 mL/min)
Materiales
analytical column
Referencia del producto
Descripción
Precios
CONDITIONS
mobile phase
[A] water; [B] methanol; (60:40, A:B)
flow rate
1.2 mL/min
column temp.
50 °C
detector
UV, 250 nm
injection
1 μL
sample
methyl-, benzylparaben, 50 mg/L; ethylparaben, 30 mg/L; propyl-, butylparaben, 100 mg/L; 2-phenoxyethanol, 1.5 g/L; 1-phenoxy-2-propanol, 3 g/L; all in 40% methanol
column
Ascentis Express RP-Amide, 10 cm x 3 mm I.D., 2.7 μm particles (53918-U)
Descripción
Legal Information
Ascentis is a registered trademark of Merck KGaA, Darmstadt, Germany