Analysis of Surfactants in Environmental Samples by Chromatographic Techniques

摘要: Synthetic surfactants are among the most produced and used organic compounds worldwide. They a wide range of chemicals characterized by their amphiphilic nature. Thus, molecules consist an hydrophilic / polar head group (either charged or uncharged) hydrophobic nonpolar hydrocarbon tail. As consequence, show solubility in liquids, ability to form micelles, adsorption phase boundaries reduction surface tension water. economically important due specific properties that allow using them as washing, wetting, emulsifying dispersing agents. Therefore, mainly formulation detergents, personal care products, paints, textiles, pesticide formulations, pharmaceutical, many other products [1, 2]. Many different types these have been synthesized, although they can be classified into three main groups according charge: (1) anionics, (2) non-ionics, (3) cationics (Figure 1); first second accounting for highest production volumes. European Committee Organic Surfactants Intermediates (CESIO) reported 1200 ktons anionic 1400 non-ionic Europe 2010, which represents 90% total surfactants.