Solid phase extraction of lead using modified cellulose in natural, wastewater and egg samples

摘要

2-Pyridyliminosalicylcellulose has been used for the sorption and estimation of lead(II)by column and batch techniques.The distribution coefficient(D)was found to be 4.3xl0~2 for the lead ion.The detection limit was found to be 3.82 ng mL~(-1)and the breakthrough volume was 20 mL.The present matrix coupled with FAAS has been used to enrich and determine the lead ions in natural and wastewater(RSD ~ 2.52-3.50%)and egg samples(RSD ~ 2.73%).The method is simple,rapid and relatively free from interference and satisfactorily applied for the estimation of lead(~98% recovery)in natural,wastewater and egg samples.