Method 1: CaF2 Cell Beer’s Law The sample which has been diluted with cylohexane is introduce into CaF2 cell and the mid infrared absorption spectrum is recorded. The absorbption spectrum is recorded. The absorbance of the typical absorption band for esters at about 1745 cm-1 is measured. The biodiesel content is then calculated with a […]

This test method describes a procedure using a gas chramotographic mass selective detector (GC-MSD) for the determination of 3-monochlioropropane-1,2-diol (3-M CPD) esters in an oil matrix. The 3-monochlioropropane-1,2-diol (3-M CPD) is one of the food-processing contaiminants under the chloropropanols group. Zelinkova et al. (2006) showed that the formation of 3-MCPD esters in oils is linked to […]

Water solubility, also known as aqueous solubility, is the maximum amount of a substance that can dissolve in water at equilibrium, at a given temperature and pressure. This parameter is used in many environmental studies to help determine the fate of chemicals in the environment. Water solubility has been correlated to the partition coefficient, another […]

R&D in adsoption and catalyst characterisation has begun to gain interest in material science. With the development of advanced carbon technology, products like activated carbon, carbon molecular sieve, carbon fuel cell and nano-carbon can be made from lignocellulosic materials; including oil palm biomass. Activated carbon (AC) is a form of carbon that has been processed […]