“…The approaches include batch techniques (Beauchemin et al, 2002;Bermond and Varrault, 2004;Yu and Klarup, 1994), flow techniques (Beauchemin et al, 2002;Shiowatana et al, 1999;Silva et al, 2007), kinetic extraction methods (Chakraborty and Chakrabarti, 2006;Chakraborty et al, 2012aChakraborty et al, , 2012bChakraborty et al, , 2013Chakraborty et al, , 2011Chakraborty et al, , 2009, Diffusive Gradients in Thin Films technique Fangueiro et al, 2002;Town et al, 2009). However, the kinetic extraction method has been found to be a simple and sensitive technique (Chakraborty and Chakrabarti, 2006;Chakraborty, 2012).…”