publication . Article . 2008

Speciation analysis of mercury contaminants in water samples by RP-HPLC after solid phase extraction on modified C18 extraction disks with 1,3-bis(2-cyanobenzene)triazene

Tahereh Hashempur; Mohammad Kazem Rofouei; Afshin Rajabi Khorrami;
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  • Published: 28 Jan 2008 Journal: Microchemical Journal, volume 89, pages 131-136 (issn: 0026-265X, Copyright policy)
  • Publisher: Elsevier BV
Abstract
Abstract A highly sensitive and accurate method for preconcentration and determination of ultra trace amounts of inorganic mercury and organomercury compounds in different water samples is proposed. The preconcentration is achieved using octadecyl silica (C18) extraction disks modified with 1,3-bis(2-cyanobenzene)triazene (CBT). The retained analytes as their triazenide complexes on the solid phase was eluted with 10 ml acetonitrile and measured by reversed-phase high-performance liquid chromatography (RP-HPLC). Type and amount of eluent, pH, amount of CBT, flow rates of sample solution and eluent have been optimized in order to obtain quantitative recovery of t...
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free text keywords: Analytical Chemistry, Spectroscopy, Organomercury Compounds, Mercury (element), chemistry.chemical_element, chemistry, Solid phase extraction, Enrichment factor, Column chromatography, Elution, Chromatography, Detection limit, Triazene, chemistry.chemical_compound
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