Determination of aluminum, copper, iron and lead in glycol formulations by atomic absorption spectroscopy

Initial screening tests and the results obtained in developing procedures to determine Al, Cu, Fe, and Pb in glycol formulations are described. Atomic absorption completion was selected for Cu, Fe and Pb, and after comparison with emission spectroscopy, was selected for Al also. Before completion, c...

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Bibliographic Details
Main Author: Not Available
Language:unknown
Published: 2022
Subjects:
14 SOLAR ENERGY
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
36 MATERIALS SCIENCE
ALUMINIUM
ABSORPTION SPECTROSCOPY
CARBON
COPPER
GLYCOLS
QUANTITATIVE CHEMICAL ANALYSIS
IRON
LEAD
CHELATING AGENTS
CORROSION
DEDTC
EMISSION SPECTROSCOPY
HEAT TRANSFER FLUIDS
METHYL ISOBUTYL KETONE
OXINE
ALCOHOLS
AZINES
CARBAMATES
CARBONIC ACID DERIVATIVES
CARBOXYLIC ACID SALTS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
ELEMENTS
FLUIDS
HETEROCYCLIC COMPOUNDS
HYDROXY COMPOUNDS
KETONES
METALS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PYRIDINES
QUINOLINES
SPECTROSCOPY
TRANSITION ELEMENTS
Carbonic acid
Online Access:http://www.osti.gov/servlets/purl/6876637
https://www.osti.gov/biblio/6876637
https://doi.org/10.2172/6876637
Description
Summary:Initial screening tests and the results obtained in developing procedures to determine Al, Cu, Fe, and Pb in glycol formulations are described. Atomic absorption completion was selected for Cu, Fe and Pb, and after comparison with emission spectroscopy, was selected for Al also. Before completion, carbon, iron, and lead are extracted with diethyldithiocarbamate (DDC) into methyl isobutyl ketone (MIBK). Aluminum was also extracted into MIBK using 8-hydroxyquinoline as a chelating agent. As little as 0.02 mg/l carbon and 0.06 mg/l lead or iron may be determined in glycol formulations. As little as 0.3 mg/l aluminum may be determined.

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