Study of complexes formation between transition metal ions and amylopectin in DMSO/H2O solution
作者： Gisele Louro Peres , Daiani Canabarro Leite , Nadya Pesce da Silveira
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摘要: The complexation ability of amylopectin (starch polymer) treated with ultrasound in DMSO/H2O solution was investigated respect to several metal ions, the assistance a factorial design (experimental planning), order establish and optimize best conditions. Acetate, chloride, nitrate were counter-ions salts. effects temperature, time, salt amount evaluated during reactions using multivariate analysis, set mathematic methods capable evaluating all system variables at once and, through this, temperature found be most influential variable. Results for pH conductivity provided evidence complex formation between ions. In addition, small shifts vibrational frequency pure biopolymer its complexes detected principal component analysis by interval (i-PCA, method), supporting complexes. formed CuII CrIII ions presented yield (40.0 55.4%, respectively) biopolymer.
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