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- W3149804404 abstract "Lead is quantitatively retained on 2-(5-bromo-2-pyridylazo)-5-diethylamminophenol (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 1.9180 pg/mL in DMF with a relative standard deviation of 1.7%. The interference of a large number of anions and cations has been studied" @default.
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- W3149804404 date "2007-01-01" @default.
- W3149804404 modified "2023-09-27" @default.
- W3149804404 title "Atomic Absorption Spectrometric Determination of Lead after Extraction and Preconcentration with 5-Br-PADAP" @default.
- W3149804404 hasPublicationYear "2007" @default.
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