Výsledky vyhledávání - "Christiane B. Duyck"

Method for the quantification of vanadyl porphyrins in fractions of crude oils by High Performance Liquid Chromatography–Flow Injection–Inductively Coupled Plasma Mass Spectrometry

Autor: Tatiana D. Saint'Pierre, Christiane B. Duyck, Flávia G. Wandekoken, Teresa C.O. Fonseca

Publikováno v: Spectrochimica Acta Part B: Atomic Spectroscopy. 119:1-9

High performance liquid chromatography hyphenated by flow injection to inductively coupled plasma mass spectrometry (HPLC–FI–ICP-MS) was used to investigate V linked to porphyrins present in fractions of crude oil. First, the crude oil sample was

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::68a1a042fba8f477012236f8b8d3a837
https://doi.org/10.1016/j.sab.2016.03.001

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Biomonitoring of metals for air pollution assessment using a hemiepiphyte herb (Struthanthus flexicaulis)

Autor: Vinícius L. Mateus, Christiane B. Duyck, Tatiana D. Saint'Pierre, Pedro Henrique M. de Paula, Adriana Gioda, Denise R. Araripe

Publikováno v: Chemosphere. 138:429-437

This work presents first results on elemental characterization of a parasite plant, Struthanthus flexicaulis, collected in urban, industrial and rural areas of Rio de Janeiro state, Brazil, in order to evaluate this plant as a biomonitor of metals po

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47bb31b6cf7adb82b2a3accfe084767c
https://doi.org/10.1016/j.chemosphere.2015.06.060

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Determination of Hg in water associate to crude oil production by electrothermal vaporization inductively coupled plasma mass spectrometry

Autor: Tatiana D. Saint'Pierre, Christiane B. Duyck, Rafael Christian Chávez Rocha

Publikováno v: Microchemical Journal. 109:41-45

Mercury is a toxic element that can be found in different chemical forms in the environment. It can be present in crude oil and contaminate the water employed in the oil extraction and production. Sample treatment required for most spectrometric tech

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53f89aae130fa7749bdc75c15a2a852d

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Determination of As and Se in crude oil diluted in xylene by inductively coupled plasma mass spectrometry using a dynamic reaction cell for interference correction on 80Se

Autor: Fernanda Inda de Albuquerque, Christiane B. Duyck, Tatiana D. Saint'Pierre, Teresa C.O. Fonseca

Publikováno v: Spectrochimica Acta Part B: Atomic Spectroscopy. :112-116

Arsenic and selenium can be found in crude oils and represent an important source of pollution when released to the environment during any stage of extraction or refinery. These elements present low sensitivity in the direct determination by inductiv

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::479fcb58e86946ffe6afc1deb319acba
https://doi.org/10.1016/j.sab.2012.05.008

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High performance liquid chromatography hyphenated to inductively coupled plasma mass spectrometry for V and Ni quantification as tetrapyrroles

Autor: Tatiana D. Saint'Pierre, Norbert Miekeley, Christiane B. Duyck, Peter Szatmari, Teresa C.O. Fonseca

Publikováno v: Spectrochimica Acta Part B: Atomic Spectroscopy. 66:362-367

A method was developed for the determination of V and Ni as tetrapyrroles by High Performance Liquid Chromatography hyphenated to Inductively Coupled Plasma Mass Spectrometry (HPLC-ICP-MS) using reversed phase and elution gradient. Chlorinated solven

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::00a26b227c13fd26dddfc9ea69a5a345
https://doi.org/10.1016/j.sab.2011.05.002

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Comparison of parallel flow and concentric micronebulizers for elemental determination in lubricant oil, residual fuel oil and biodiesel by Inductively Coupled Plasma Optical Emission Spectrometry

Autor: Tatiana D. Saint'Pierre, Christiane B. Duyck, Eider Fernando dos Santos, Jefferson Rodrigues de Souza

Publikováno v: Spectrochimica Acta Part B: Atomic Spectroscopy. 66:356-361

Two micronebulizers, PFA-100 and Miramist, were evaluated using a method for elemental determination by Inductively Coupled Plasma Optical Emission Spectrometry (ICP OES) in lubricant and residual fuel oils diluted in xylene. The facility and speed o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b6fe72d9f46365cc52465984b212111c
https://doi.org/10.1016/j.sab.2011.04.010

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Determination of Fe, Ni and V in asphaltene by ICP OES after extraction into aqueous solutions using sonication or vortex agitation

Autor: André L. Saraceno, Ricardo Q. Aucélio, Christiane B. Duyck, Carmem Lúcia P. da Silveira, Roseli M. de Souza

Publikováno v: Microchemical Journal. 87:99-103

A simple procedure for the extraction of Fe, Ni and V from asphaltene into acid solutions prior to the ICP OES determination is proposed. Either sonication or vortex agitation was used to disperse the organic sample into concentrated nitric acid, ach

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ef71241d0027b62c694484e8d6580890
https://doi.org/10.1016/j.microc.2007.06.001

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The determination of trace elements in crude oil and its heavy fractions by atomic spectrometry

Autor: Ricardo Q. Aucélio, Norbert Miekeley, Christiane B. Duyck, Patricia Grinberg, Carmem Lúcia P. da Silveira, Reinaldo Calixto de Campos, Geisamanda Pedrini Brandão

Publikováno v: Spectrochimica Acta Part B: Atomic Spectroscopy. 62:939-951

A literature review on the determination of trace elements in crude oil and heavy molecular mass fractions (saturates, aromatics, resins and asphaltenes) by ICP-MS, ICP OES and AAS is presented. Metal occurrences, forms and distributions are examined

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::35f5cccefa5541b00abfe013fc14132a
https://doi.org/10.1016/j.sab.2007.04.013

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Trace element distributions in biodegraded crude oils and fractions from the Potiguar Basin, Brazil

Autor: Norbert Miekeley, Christiane B. Duyck, Teresa C.O. Fonseca, Peter Szatmari, Eugenio V. Santos Neto

Publikováno v: Journal of the Brazilian Chemical Society, Volume: 19, Issue: 5, Pages: 978-986, Published: 2008
Journal of the Brazilian Chemical Society v.19 n.5 2008
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ

Trace element distribution patterns were determined in crude oils from onshore biodegraded reservoirs along a secondary migration trend (Potiguar Basin, Brazil). Samples were fractionated into asphaltenes, paraffins, aromatics and polars and resins f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::520b5f8077bfa8b9f0cd6efa08972ecc
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532008000500025&lng=en&tlng=en

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Multielemental determination in oil matrices diluted in xylene by ICP-MS with a dynamic reaction cell employing methane as reaction gas for solving specific interferences

Autor: Christiane B. Duyck, Jefferson Rodrigues de Souza, Teresa C.O. Fonseca, Tatiana D. Saint'Pierre

Publikováno v: Journal of Analytical Atomic Spectrometry. 27:1280

The analysis of organic samples by ICP-MS is still a challenge due to the occurrence of non-spectral and spectral interferences, which usually requires time-consuming sample preparation procedures for their minimization. In this work, results are pre

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e9dc406ca7b2db7de056560be62af467
https://doi.org/10.1039/c2ja30085k

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