Reversed phase extraction chromatographic separation of lead with bis (2-ethyl hexyl) phosphoric acid

Journal Article · Mon Jan 01 04:00:00 EST 1990 · Analytical Letters; (United States)

DOI:https://doi.org/10.1080/00032719008052471· OSTI ID:5543565

Vin, Yi Yu; Khopkar, S M ^[1]

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1. Indian Inst. of Tech., Bombay (India)

A new method for extraction chromatographic separation of lead was developed with bis (2-ethyl hexyl) phosphoric acid as the stationary phase and hydrochloric acid as mobile phase on silica gel as the stationary support. Lead was extracted from 0.01 M hydrochloric acid and then stripped with various mineral acids and determined spectrophotometrically at 640 nm as its complex with Arsenazo III. Lead was separated from alkali, alkaline earths, chromium, copper, magnesium and arsenic by selective extraction. It was separated from iron, bismuth, antimony and tin by selective stripping. The method was extended for the analysis of lead in samples of alloys and industrial effluents.

• OSTI ID: 5543565
• Journal Information: Analytical Letters; (United States), Journal Name: Analytical Letters; (United States) Vol. 23:4; ISSN ANALB; ISSN 0003-2719
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
ABSORPTION SPECTROSCOPY
ADSORBENTS
ALKALI METALS
ALKALINE EARTH METALS
ALLOYS
ANTIMONY
AROMATICS
ARSENAZO
ARSENIC
ARSENIC COMPOUNDS
ARSONIC ACIDS
AZO COMPOUNDS
BISMUTH
CHEMICAL ANALYSIS
CHLORINE COMPOUNDS
CHROMATOGRAPHY
CHROMIUM
COMPLEXES
COPPER
DATA
ELEMENTS
ESTERS
EXPERIMENTAL DATA
EXTRACTION
HALOGEN COMPOUNDS
HDEHP
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INFORMATION
INORGANIC ACIDS
IRON
LEAD
LEAD COMPLEXES
LIQUID WASTES
MAGNESIUM
METALS
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC ARSENIC COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
PHENOLS
PHOSPHORIC ACID ESTERS
POLYPHENOLS
QUANTITATIVE CHEMICAL ANALYSIS
REAGENTS
SAMPLE PREPARATION
SEDIMENTS
SEMIMETALS
SEPARATION PROCESSES
SILICA GEL
SOLVENT EXTRACTION
SPECTROSCOPY
SULFONIC ACIDS
TIN
TRANSITION ELEMENTS
WASTE WATER
WASTES
WATER