Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Cíntia S. Silva"'
Publikováno v:
Química Nova, Vol 25, Iss 6b, Pp 1194-1196 (2002)
The goal of this study was to evaluate the feasibility of direct introduction of clay slurries in an inductively coupled plasma optical emission spectrometer with axial view configuration. Calibration was performed using a certified reference materia
Externí odkaz:
https://doaj.org/article/352b2b95419f48dfa7cc1bc7914f3767
Publikováno v:
Microchimica Acta. 161:109-114
A fast and reliable method for the direct determination of iron in sand by solid sampling graphite furnace atomic absorption spectrometry was developed. A Zeeman-effect 3-field background corrector was used to decrease the sensitivity of spectrometer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38e3dcbe5225038dd83ea07c2ea1b457
https://doi.org/10.1007/s00604-007-0788-x
https://doi.org/10.1007/s00604-007-0788-x
Autor:
Angerson Nogueira do Nascimento, Cíntia S. Silva, Lúcio Angnes, Rodrigo A.A. Munoz, Paulo Rogério Miranda Correia, Pedro Vitoriano de Oliveira
Publikováno v:
Energy & Fuels. 21:295-302
Electroanalytical stripping techniques have been well-used for trace-metal determinations, because of their remarkable sensitivity and selectivity. However, when these techniques are applied for organic materials, such as crude oil and petroleum-base
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f67c0042669915da5065da19f95eb0d6
https://doi.org/10.1021/ef0603941
https://doi.org/10.1021/ef0603941
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 60:673-680
This work describes a systematic study for the bovine liver sample preparation for Cu and Zn determination by solid sampling electrothermal atomic absorption spectrometry. The main parameters investigated were sample drying, grinding process, particl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2b40996d752417e0d4b042dba911577
https://doi.org/10.1016/j.sab.2005.02.021
https://doi.org/10.1016/j.sab.2005.02.021
Autor:
Rodrigo A.A. Munoz, Paulo Rogério Miranda Correia, Cíntia S. Silva, Pedro Vitoriano de Oliveira, Lúcio Angnes
Publikováno v:
Microchimica Acta. 149:199-204
The determination of metals in lubricating oil has been used as an important means of preventing components failures, to provide environmental information, and to solve criminal issues. In this study derivative potentiometric stripping analysis (DPSA
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e739a18988578174251284adc8b1db12
https://doi.org/10.1007/s00604-005-0324-9
https://doi.org/10.1007/s00604-005-0324-9
Autor:
Francisco José Krug, Zilvanir F Queiroz, Joaquim A. Nóbrega, Iolanda A. Rufini, Samuel Simião de Sousa, Pedro Vitoriano de Oliveira, Cíntia S. Silva
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 57:1789-1799
The electrothermal atomization of elements is critically affected by the volatility of the analyte and its compounds, the matrix constituents, the atomizer material and the surface and gas phase temperatures. There are scarce temperature data about t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87557d122275f2810ed0fc00adb64cbc
https://doi.org/10.1016/s0584-8547(02)00146-5
https://doi.org/10.1016/s0584-8547(02)00146-5
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 57:29-33
Univ Fed Sao Carlos, Dept Quim, Grp Anal Instrumental Aplicada, BR-13560970 Sao Carlos, SP, Brazil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22a741ec25722e30c4191bc14c765d41
https://doi.org/10.1016/s0584-8547(01)00361-5
https://doi.org/10.1016/s0584-8547(01)00361-5
Publikováno v:
Analytical Letters. 31:2195-2208
The sulfur(IV) content in wines was determined with a flow injection spectrophotometric system by treating each sample in the donor channel with sulfuric acid in order to release free SO2, which diffuses through a PTFE membrane to the acceptor soluti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1644f208a3f66686887f2705acb926c
https://doi.org/10.1080/00032719808005296
https://doi.org/10.1080/00032719808005296
Publikováno v:
Química Nova, Volume: 31, Issue: 1, Pages: 104-113, Published: 2008
Química Nova v.31 n.1 2008
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Química Nova v.31 n.1 2008
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
This is a review of direct analysis using solid sampling graphite furnace atomic absorption spectrometry. Greater emphasis is dedicated to sample preparation, sample homogeneity, calibration and its application to microanalysis and micro-homogeneity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::595cd56fc074fff65aa495d66d76434a
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000100022&lng=en&tlng=en
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000100022&lng=en&tlng=en
Publikováno v:
SciELO
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
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Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89c1e9219e3bca0d563e949d1bbaebc9