For the first time 5-hydroxymethyl-2-furaldehyde (HMF) was separated from crude palm oil (CPO), and
its authenticity was determined using an RP-HPLC method. Separation was accomplished with isocratic
elution of a mobile phase comprising water and methanol (92:8 v/v) on a Purospher Star RP-18e column
(250 mm 4.6 mm, 5.0 lm). The flow rate was adjusted to 1 ml/min and detection was performed at
284 nm. The method was validated, and results obtained exhibit a good recovery (95.58% to 98.39%).
Assessment of precision showed that the relative standard deviations (RSD%) of retention times and peak
areas of spiked samples were less than 0.59% and 2.66%, respectively. Further, the limit of detection (LOD)
and LOQ were 0.02, 0.05 mg/kg, respectively, and the response was linear across the applied ranges. The
crude palm oil samples analysed exhibited HMF content less than 2.27 mg/kg.
For the first time 5-hydroxymethyl-2-furaldehyde (HMF) was separated from crude palm oil (CPO), andits authenticity was determined using an RP-HPLC method. Separation was accomplished with isocraticelution of a mobile phase comprising water and methanol (92:8 v/v) on a Purospher Star RP-18e column(250 mm 4.6 mm, 5.0 lm). The flow rate was adjusted to 1 ml/min and detection was performed at284 nm. The method was validated, and results obtained exhibit a good recovery (95.58% to 98.39%).Assessment of precision showed that the relative standard deviations (RSD%) of retention times and peakareas of spiked samples were less than 0.59% and 2.66%, respectively. Further, the limit of detection (LOD)and LOQ were 0.02, 0.05 mg/kg, respectively, and the response was linear across the applied ranges. Thecrude palm oil samples analysed exhibited HMF content less than 2.27 mg/kg.
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