Multielement determination of trace metals in seawater by ICP-MS with aid of down-sized chelating resin-packed minicolumn for preconcentration

Rahmi, Dwinna; Zhu, Yanbei; Fujimori, Eiji; Umemura, Tomonari; Haraguchi, Hiroki

doi:10.1016/j.talanta.2006.11.023

Cited by 87 publications

(57 citation statements)

References 27 publications

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“…Unfortunately, only a few studies were carried out with suitable control procedures involving the overall experimental measurements. Often, the assessment of data quality was obtained only by calculating the percentage amounts of YLOID or Zr and Hf recovered from solutions in which the elemental concentration of the spikes added were higher with respect to their natural contents in seawater, or with the procedural blank composition not being clearly or exactly defined and not really simulating the seawater matrix [10][11][12][13][14]. Therefore, it is very problematic to compare the results obtained from different studies lacking the traceability of results of the complete analytical procedure that should be established using an appropriate Certified Reference Material (CRM).…”

Section: Introductionmentioning

confidence: 99%

Simultaneous determinations of zirconium, hafnium, yttrium and lanthanides in seawater according to a co-precipitation technique onto iron-hydroxide

Raso

Censi

Saiano

2013

Talanta

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This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues.Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. . However in the analysis of YLOID in seawater, a better determination needs an efficient combination of ICP-MS measurement with a preconcentration technique. To perform an ultra-trace analysis in seawater, we have validated an analytical procedure involving an improved modified co-precipitation on iron hydroxides to ensure the simultaneous quantitative recovery of YLOID, Zr and Hf contents with measurement by a quadrupole ICP-MS.The validity of the method was assessed through a series of co-precipitation experiments and estimation of several quality control parameters for method validation, namely working range and its linearity, detection limit, quantification limit, precision and spike recoveries, and the methodological blank choice, are introduced, evaluated and discussed. Analysis of NASS-6, is the first report on the latest seawater reference material for YLOID, hafnium and zirconium.

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Section: Introductionmentioning

confidence: 99%

Simultaneous determinations of zirconium, hafnium, yttrium and lanthanides in seawater according to a co-precipitation technique onto iron-hydroxide

Raso

Censi

Saiano

2013

Talanta

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“…18,19 O pH da água do mar varia entre 7,4 e 8,4, devido principalmente ao efeito tampão do equilíbrio do sistema H 2 CO 3 / HCO 3 -/CO 3 2-. 20,21 Outra propriedade importante é a elevada condutividade devido aos sais dissolvidos.…”

Section: áGua Do Marunclassified

Simulação do intemperismo natural de pilhas zinco-carbono e alcalinas

Câmara¹,

Afonso²,

Silva³

et al. 2012

Quím. Nova

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Recebido em 8/2/11; aceito em 14/6/11; publicado na web em 5/8/11 SIMULATION OF NATUAL WEATHERING OF ZINC-CARBON AND ALKALINE BATTERIES. Spent alkaline and Zn-C batteries were placed in seawater, rainwater or landfill leachate at room temperature for up 30 days in order to simulate natural weathering. After the experiments pH and electrical conductivity of the liquid were measured. The precipitate formed and the filtrate were submitted to metal analysis by ICP-OES. Seawater is the most corrosive medium, followed by landfill leachate. Pb, Cd and Hg were mainly in the filtrate. Fe, Mn and Zn were generally dominant in the precipitate. Na and K account for the electrical conductivity and are good indicators of the corrosion stage of the batteries.Keywords: spent batteries; weathering; heavy metals. INTRODUÇÃOIntemperismo é um conjunto de processos naturais de origem física (desagregação), química (decomposição) e biológica que causa a alteração dos materiais na superfície da Terra ao longo do tempo. 1,2 O produto desta deterioração é uma mistura de novos materiais que são estáveis no ambiente em que se deu a transformação. 1 Esses processos são aplicáveis ao estudo de degradação e/ou decomposição de qualquer material disposto em condições naturais de superfície.A lixiviação é o processo onde constituintes de um material sólido são liberados para o meio ambiente durante o contato com um fluxo de líquido por percolação ou difusão. 3,4 A água, seja como reagente ou como solvente, é o principal agente do intemperismo. 4 A solução contendo constituintes dissolvidos da fase sólida é chamada lixiviado. 3 A capacidade de transferência dos constituintes da fase sólida para o lixiviado (lixiviabilidade) é determinada expondo-se o material a uma solução com características conhecidas e determinando-se o grau de dissolução dos contaminantes. 4 A lixiviabilidade dos componentes depende de diversos fatores: tamanho de partícula (área superficial exposta); temperatura (solubilidade dos solutos na água); tempo de contato (estabelecimento ou não do equilíbrio de lixiviação); 3,4 agitação; relação líquido/sólido; pH (um dos fatores dominantes da mobilidade, solubilidade, complexação e retenção de metais pesados em solos, sedimentos e resíduos); 5,6 condições redox (importante quando os compostos formados na presença de oxigênio têm diferença significativa na solubilidade em relação àqueles formados sob condições redutoras); presença de agentes complexantes, CO 2 e O 2 ; presença de matéria orgânica dissolvida e em suspensão (ela influencia a biodisponibilidade e a mobilidade de metais pesados); 7,8 presença de micro-organismos (intemperismo biológico). [1][2][3]9 A extensão da liberação de constituintes de um resíduo sólido em ensaios de lixiviação é fundamental para definir: 9,10 o potencial de impacto ambiental através do transporte pela água, incluindo solo, lençol freático e contaminação de água de superfície; os riscos ecológicos e para a saúde humana a partir da disposição inadequada no ambiente; a eficácia de processos de tra...

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“…Inductively coupled plasma mass spectrometry (ICP-MS) has excellent analytical features such as simultaneous multi element detection capability, extremely high sensitivity, and wide linear dynamic range [1][2][3][4][5] . However, direct analysis of seawater by ICP-MS is still a difficult task, not only because the concentration levels of trace elements are quite low, but also because high salt matrix interfere with the determination.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, the present authors have reported a Chelex 100 resin-packed mini column method for pre-concentration and determination of 25 elements in seawater [4] using a small sample volume, where trace metals in 50 mL of original seawater sample were concentrated into 0.5 mL of 2 M nitric acid (final solution). From the results, it has been proved that the mini column is a convenient pre-concentration device for trace metals in seawater as well as in mineral waters prior to the determination by ICP-MS.…”

Section: Introductionmentioning

confidence: 99%

AN IN-SYRINGE La CO-PRECIPITATION METHOD FOR PRE-CONCENTRATION OF OXO-ANIONS FORMING ELEMENTS IN SEAWATER FOLLOWED BY ICP-MS MEASUREMENT

Rahmi¹,

Zhu²,

Fujimori³

et al. 2015

J.Ris.Kim.

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A lanthanum (La) co-precipitation method was explored for pre-concentration of oxo-anion forming elements followed by measurement with Inductively Coupled Plasma Mass Spectrometry (ICP-MS). The co-precipitation and subsequent washing and elution steps were performed in a 25 mL-volume syringe in order to save the sample consumption and to avoid the contamination from the experimental environment. In the present work, various parameters such as the concentration of La added into the sample solution, the pH, aging time, and so on were optimized to obtain good recoveries and analytical detection limits for V, As, Se, Sb, and W. Generally, in the coprecipitation method, high concentration of precipitant (in this case, La) causes a serious problem of signal memory effect in ICP-MS measurement. To reduce such memory effect, in the present experiment, high level of La was removed by passing the analyte solution (i.e., lanthanum hydroxide dissolved in 1 M HNO3) through a mini column packed with cation-exchange resins. The method thus obtained was evaluated through the measurement of V, As, Se, Sb and W in seawater reference materials (CASS-4 and NASS-5). The recoveries exceeded 80%, and the observed values were in good agreement with the certified values. Thus, the present method was applied to the determination of trace elements in real seawater sample.

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Multielement determination of trace metals in seawater by ICP-MS with aid of down-sized chelating resin-packed minicolumn for preconcentration

Cited by 87 publications

References 27 publications

Simultaneous determinations of zirconium, hafnium, yttrium and lanthanides in seawater according to a co-precipitation technique onto iron-hydroxide

Simultaneous determinations of zirconium, hafnium, yttrium and lanthanides in seawater according to a co-precipitation technique onto iron-hydroxide

Simulação do intemperismo natural de pilhas zinco-carbono e alcalinas

AN IN-SYRINGE La CO-PRECIPITATION METHOD FOR PRE-CONCENTRATION OF OXO-ANIONS FORMING ELEMENTS IN SEAWATER FOLLOWED BY ICP-MS MEASUREMENT

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