Journal of Oil Palm Research Vol. 27  June 2015 p.  190-193
DOI:

MEASUREMENT OF HYDROXYL VALUE OF PALM-BASED POLYOL BY ATTENUATED TOTAL REFLECTANCE/FOURIER TRANSFORM INFRARED SPECTROSCOPY

Author(s): BONNIE TAY YEN PING*; ZULINA ABD MAURAD* and HALIZA ABDUL AZIZ*

A rapid method for the quantitative determination of the hydroxyl value (OHV) of palm-based polyols by Attenuated Total Reflectant-Fourier Transform Infra-red Spectroscopy (ATR-FTIR) with partial least square regression (PLS) was developed. Calibration standards were based on 25 palm-based polyols, synthesised in the Advanced Oleochemical Technology Division (AOTD), Malaysian Palm Oil Board (MPOB) covering OHV values ranging from 59 to 229 mg KOH g-1 of sample. The OHV values were also determined using AOCS Cd 13-60 standard method. The FTIR-generated calibration plot had a correlation coefficient (R2) of 0.9925 and a standard error of calibration (SEC) of 5.58, while the validation plots had R2 of 0.9884 and standard error of prediction (SEP) of 5.35.

Keywords: , , , , , ,

Author Information
* Malaysian Palm Oil Board, 6 Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia. E-mail: bonnie@mpob.gov.my


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