Atomic Absorption Spectrometric Determination of Lead after Extraction and Preconcentration with 5-Br-PADAP
نویسنده
چکیده مقاله:
Lead is quantitatively retained on 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol (5-Br-PADAP)-ammonium tetraphenylborate with microcrystalline naphthalene or by a column method in the pH range 4.0-6.0 from a large volume of aqueous solutions of various samples with preconcentration factor of 60. After filtration, the solid mass consisting of the lead complex and naphthalene was dissolved with 5 mL of dimethylformamide and the metal was determined by atomic absorption spectrometry. The calibration curve is linear in the range of 1.9-180 mg/mL in DMF with a relative standard deviation 1.7&. The interference of a large number of anions and cations has been studied.
منابع مشابه
atomic absorption spectrometric determination of lead after extraction and preconcentration with 5-br-padap
lead is quantitatively retained on 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol (5-br-padap)-ammonium tetraphenylborate with microcrystalline naphthalene or by a column method in the ph range 4.0-6.0 from a large volume of aqueous solutions of various samples with preconcentration factor of 60. after filtration, the solid mass consisting of the lead complex and naphthalene was dissolved with 5...
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عنوان ژورنال
دوره 20 شماره 1
صفحات 1- 8
تاریخ انتشار 2001-06-01
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