Determination of cobalt, copper, mercury, and nickel as Bis(2-hydroxyethyl)dithiocarbamate complexes by high-performance liquid chromatography

Journal Article · Sun Mar 01 04:00:00 EST 1987 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00132a005· OSTI ID:6881688

King, J N; Fritz, J S

Ammonium bis(2-hydroxyethyl)dithiocarbamate (HEDC) is used as a precolumn derivatizing reagent for the reversed-phase HPLC determination of Co(II), Cu(II), Hg(II), and Ni(II). The metal-HEDC complexes are soluble in water, which eliminates the need to extract them into an organic solvent prior to analysis. Co(II), Cu(II), and Ni(II) can be determined by direct aqueous injection onto a C18 column in the range of 0.005-10.0 mg/L, with a precision of 1.5-3.2%. Detection is at 405 nm. The Hg(II)-HEDC complex is preconcentrated on an on-line adsorption column prior to HPLC analysis. After preconcentration, Hg(II) can be determined in the range of 0.02-25..mu..g/L with a precision of less than 2%. The analysis of spiked electroplating waste waters showed good agreement with expected values.

• Research Organization: Iowa State Univ., Ames
• OSTI ID: 6881688
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 59:5; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AMMONIUM COMPLEXES
CARBAMATES
CARBONIC ACID DERIVATIVES
CARBOXYLIC ACID SALTS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHROMATOGRAPHY
COBALT
COBALT COMPLEXES
COMPLEXES
COPPER
COPPER COMPLEXES
DATA
DERIVATIZATION
DITHIOLS
ELEMENTS
EXPERIMENTAL DATA
HYDROGEN COMPOUNDS
INFORMATION
LIQUID COLUMN CHROMATOGRAPHY
LIQUID WASTES
MERCURY
MERCURY COMPLEXES
METALS
NICKEL
NICKEL COMPLEXES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
REAGENTS
SEPARATION PROCESSES
SOLUBILITY
SOLVENT PROPERTIES
THIOLS
TRACE AMOUNTS
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENTS
WASTE WATER
WASTES
WATER