Differential centrifugation. Fractionation is a separation process in which a certain quantity of a mixture (gas, solid, liquid, suspension or isotope) is divided during a phase transition, into a number of smaller quantities (fractions) in which the composition varies according to a gradient.lood fractionation refers generally to the process of separation using a centrifuge (centrifugation), after which three major components can be visualized: plasma, buffy coat and erythrocytes.
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New Delhi: Petrol in India costs more than neighbouring Pakistan and Sri Lanka but is cheaper than Bangladesh and Nepal, Oil Minister Dharmendra Pradhan said on Wednesday. Petrol price of Rs. 63.16 per litre in Delhi is more than Rs. 44.05 per litre rate of the fuel in Pakistan and Rs. 54.75 in Sri Lanka. However, it is cheaper than Rs. 76.97 per litre price in Bangladesh and Rs. 68.13 a litre in Nepal.