Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.14/18874
Título: Screening of cadmium and lead in potentially contaminated waters using a spectrophotometric sequential injection lab-on-valve methodology
Autor: Santos, Inês C.
Mesquita, Raquel
Rangel, António O.S.S.
Palavras-chave: Spectrophotometry
Cadmium
Lead
Metals screening
mSI-LOV Biparametric determination
Biparametric determination
Marine waters
Data: 2015
Editora: Elsevier
Citação: SANTOS, Inês C.: MESQUITA, Raquel; RANGEL, António O. S. S. - Screening of cadmium and lead in potentially contaminated waters using a spectrophotometric sequential injection lab-on-valve methodology. Talanta. ISSN 0039-9140. N.º 143 (2015), p. 359–365
Resumo: The presentworkdescribesthedevelopmentofa mSI-LOVmethodforthesimultaneousscreeningof cadmium andleadinpotentiallycontaminatedwatersamples.Toattainthebiparametricdetermination, dithizone waschosenasthespectrophotometricreagentasitformsacoloredcomplexwithbothmetal ions, atdifferentpHconditions.Thecadmiumdeterminationwasattainedinstrongalkalineconditions (pHE12);theleaddeterminationwascalculatedbythedifferencewiththedeterminationofboth metals inmildalkalineconditions(pHE8). Thecoloredcomplexwasmeasuredat550nmandthe method presentedaLODof34 μg L 1 for cadmiumand56 μg L 1 for lead,withasampleconsumption of 20 mL perassayandadeterminationrateof55h 1. Theresultsobtainedwereinagreementwiththose obtained byFAAS.Thedevelopedmethodwasefficiently appliedtothescreeningofcadmiumandleadin marine portwaters.
Peer review: yes
URI: http://hdl.handle.net/10400.14/18874
DOI: http://dx.doi.org/10.1016/j.talanta.2015.05.005
Aparece nas colecções:CBQF - Artigos em revistas internacionais com Arbitragem / Papers in international journals with Peer-review

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