Optimization of analytical procedures for the simultaneous voltammetric determination of total Hg(II) in presence of Cu(II) in environmental matrices

被引:2
作者
Melucci, Dora [1 ]
Montalbani, Simona [1 ]
Locatelli, Clinio [1 ]
机构
[1] Univ Bologna, Dept Chem G Ciamician, I-40126 Bologna, Italy
来源
CENTRAL EUROPEAN JOURNAL OF CHEMISTRY | 2012年 / 10卷 / 01期
关键词
Mercury; Copper; Voltammetry; Signal Interference; Environmental Samples; ANODIC-STRIPPING VOLTAMMETRY; ATOMIC FLUORESCENCE SPECTROMETRY; GLASSY-CARBON ELECTRODE; PLASMA-MASS SPECTROMETRY; MERCURY DETERMINATION; ABSORPTION-SPECTROMETRY; GAS-CHROMATOGRAPHY; BIOLOGICAL SAMPLES; AU(111) ELECTRODE; TRACE MERCURY;
D O I
10.2478/s11532-011-0138-z
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The present work reports the critical comparison about the employment of three different supporting electrolytes (0.1 mol L-1 HClO4, 0.01 mol L-1 EDTA-Na-2 + 0.06 mol L-1 NaCl + 2.0 mol L-1 HClO4 and 0.1 mol L-1 KSCN + 0.001 mol L-1 HClO4) and their instrumental and chemical optimisation for the simultaneous voltammetric determination of total mercury(II) and copper(II) in sediments and sea water at gold electrode, especially discussing the reciprocal interference problems. The differential pulse anodic stripping voltammetric (DPASV) measurements were carried out using a conventional three-electrode cell: a gold electrode (GE) as working electrode, a platinum wire and an AgaEuro-AgClaEuro-KClsat as auxiliary and reference electrodes, respectively. The analytical procedure was verified by the analysis of standard reference materials: Estuarine Sediment BCR-CRM 277, River Sediment BCR-CRM 320 and Mercury in Water NIST-SRM 1641d. Once set up on the standard reference materials, the analytical procedure was transferred and applied to sediments and sea waters sampled in a lagoon ecosystem connected with Adriatic Sea (Ravenna area, Italy).
引用
收藏
页码:267 / 276
页数:10
相关论文
共 73 条
[1]   Determination of mercury by anodic stripping voltammetry with a gold nanoparticle-modified glassy carbon electrode [J].
Abollino, Ornella ;
Giacomino, Agnese ;
Malandrino, Mery ;
Piscionieri, Giuseppina ;
Mentasti, Edoardo .
ELECTROANALYSIS, 2008, 20 (01) :75-83
[2]   Voltammetric determination of methylmercury and inorganic mercury with an home made gold nanoparticle electrode [J].
Abollino, Ornella ;
Giacomino, Agnese ;
Malandrino, Mery ;
Marro, Sara ;
Mentasti, Edoardo .
JOURNAL OF APPLIED ELECTROCHEMISTRY, 2009, 39 (11) :2209-2216
[3]   Determination of mercury and selenium in consumed food items, in Libya using instrumental and radiochemical NAA [J].
Alamin, M. B. ;
Bejey, A. M. ;
Kecera, J. ;
Mizera, J. .
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2006, 270 (01) :143-146
[4]   Mercury speciation in sea food by flow injection cold vapor atomic absorption spectrometry using selective solid phase extraction [J].
Alonso, E. Vereda ;
Cordero, M. T. Siles ;
de Torres, A. Garcia ;
Rudner, P. Canada ;
Pavon, J. M. Cano .
TALANTA, 2008, 77 (01) :53-59
[5]  
[Anonymous], 1978, SPECTROCHIM ACTA, DOI DOI 10.1016/0584-8547(78)80044-5
[6]  
[Anonymous], 2004, ELEMENTS THEIR COMPO, DOI DOI 10.1002/9783527619634
[7]  
[Anonymous], 1990, METAL SPECIATION ENV, DOI [10.1007/978-3-642-74206-4, DOI 10.1007/978-3-642-74206-4]
[8]   Slurry sampling in serum blood for mercury determination by CV-AFS [J].
Aranda, Pedro R. ;
Gil, Raul A. ;
Moyano, Susana ;
De Vito, Irma ;
Martinez, Luis D. .
JOURNAL OF HAZARDOUS MATERIALS, 2009, 161 (2-3) :1399-1403
[9]  
Bard AJ., 1980, ELECTROCHEMICAL METH
[10]   Determination of mercury in ambient water samples by anodic stripping voltammetry on screen-printed gold electrodes [J].
Bernalte, E. ;
Marin Sanchez, C. ;
Pinilla Gil, E. .
ANALYTICA CHIMICA ACTA, 2011, 689 (01) :60-64