HPLC Analysis of Cosmetic Preservatives on Ascentis^® Express RP-Amide at Elevated Temperature (0.6 mL/min)

技术

HPLC: suitable

试验参数

column: Ascentis Express RP-Amide, 10 cm x 3 mm I.D., 2.7 μm particles (53918-U)
mobile phase: [A] water; [B] methanol; (60:40, A:B)
flow rate: 0.6 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

适用性

application for HPLC

应用

cleaning products
cosmetics
personal care