title: Extraction and spectrophotometric determination of lead(II) with pyridine-2-acetaldehyde salicyloylhydrazone.
abstract: Lead(II) reacts with pyridine-2-acetaldehyde salicyloylhydrazone (PASH) in the pH range 8.6-9.3 to form a yellow-green, 1:2 chelate which can be extracted into chloroform. Beer's law is obeyed in the concentration range 1.5-6.2 mug ml(-1) of lead(II). The molar absorptivity of the extracted species is 1.93 x 10(4) l mol(-1) cm(-1) at 380 nm. The proposed method is sensitive, simple, rapid, accurate and has been satisfactorily applied for the determination of lead in synthetic mixtures, alloys, water and soil samples.
authors.affiliation: Inorganic Chemistry Division, Institute of Science, 15, Madam Cama Road, Bombay 400032, India.
authors.forename: M N
authors.initials: MN
authors.lastname: Bale
authors.forename: D P
authors.initials: DP
authors.lastname: Dave
authors.forename: A D
authors.initials: AD
authors.lastname: Sawant