Výsledky vyhledávání - "Leonardo Lampugnani"

Flame-in-gas-shield miniature flame hydride atomizers for ultra trace element determination by chemical vapor generation atomic fluorescence spectrometry

Autor: Alessandro D'Ulivo, I. Paolicchi, Roberto Zamboni, Massimo Onor, Leonardo Lampugnani

Publikováno v: Spectrochimica Acta Part B: Atomic Spectroscopy. 64:48-55

Flame-in-gas shield miniature hydride atomizers (FIGS) have been investigated and evaluated in view of their alternative use to miniature diffusion flame hydride atomizer (MDF) to determination of hydride forming elements by atomic fluorescence spect

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f09fafe609ea1782745ccd5f4e2469f3
https://doi.org/10.1016/j.sab.2008.10.038

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Determination of lead in wine by hydride generation atomic fluorescence spectrometry in the presence of hexacyanoferrate(III)

Autor: Dimiter L. Tsalev, Alessandro D'Ulivo, Massimo Onor, Leonardo Lampugnani, Irina Karadjova

Publikováno v: Analytical & bioanalytical chemistry
388 (2007): 801–807. doi:10.1007/s00216-007-1127-0
info:cnr-pdr/source/autori:Karadjova I. B., L. Lampugnani, A. D'Ulivo, M. Onor, D. L. Tsalev/titolo:Determination of lead in wine by hydride generation atomic fluorescence spectrometry in the presence of hexacyanoferrate(III)/doi:10.1007%2Fs00216-007-1127-0/rivista:Analytical & bioanalytical chemistry (Print)/anno:2007/pagina_da:801/pagina_a:807/intervallo_pagine:801–807/volume:388

A rapid, accurate, and precise method is described for the determination of Pb in wine using continuous-flow hydride generation atomic fluorescence spectrometry (CF-HGAFS). Sample pretreatment consists of ten-fold dilution of wine followed by direct

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0172f0f05cc122b938a2ccbaf6b9ee37
https://doi.org/10.1007/s00216-007-1127-0

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Mechanism of atomization interference by oxygen at trace level in miniature flame hydride atomizers

Autor: Jiří Dědina, Anna Selecká, Alessandro D'Ulivo, Leonardo Lampugnani

Publikováno v: Spectrochimica acta. Part B, Atomic spectroscopy 60 (2005): 1270–1279. doi:10.1016/j.sab.2005.06.004
info:cnr-pdr/source/autori:A. DUlivo, J. Dedina, L. Lampugnani, A. Selecka/titolo:Mechanism of atomization interference by oxygen at trace level in miniature flame hydride atomizers/doi:10.1016%2Fj.sab.2005.06.004/rivista:Spectrochimica acta. Part B, Atomic spectroscopy/anno:2005/pagina_da:1270/pagina_a:1279/intervallo_pagine:1270–1279/volume:60

The mechanism of atomization interference by oxygen at trace level in gases supplied to miniature argon hydrogen diffusion flame (MDF), flame-in-gas-shield (FIGS) and flame-in-flame (FIF) hydride atomizers, was investigated for hydrogen selenide, ars

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fac7ed9d153a66bbed232c1409bea2cd
https://doi.org/10.1016/j.sab.2005.06.004

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Hydride generation atomic absorption spectrometry with different flow systems and in-atomizer trapping for determination of cadmium in water and urine—overview of existing data on cadmium vapour generation and evaluation of critical parameters

Autor: Leonardo Lampugnani, Claudia Salvetti, Dimiter L. Tsalev

Publikováno v: Talanta. 61:683-698

An overview of literature data on vapour generation techniques for cadmium and comparison with own experiments by means of several different types of hydride generation-electrothermal atomic absorption spectrometric systems (HG-ETAAS) (batch, semi-ba

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77cd49b505b27730fa9fd940f476027e
https://doi.org/10.1016/s0039-9140(03)00324-2

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Electrothermal atomic absorption spectrometric determination of cadmium and lead with stabilized phosphate deposited on permanently modified platforms

Autor: Kristina K Chakarova, Leonardo Lampugnani, Ivan I Petrov, Dimiter L. Tsalev, Rositsa Georgieva

Publikováno v: Talanta. 58:331-340

Some drawbacks of the phosphate modifier such as reagent blank contribution and background absorption in electrothermal atomic absorption spectrometric determination of cadmium and lead are substantially alleviated by application of small amounts of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97a7201eb84502f6eca4809f2d270a4a
https://doi.org/10.1016/s0039-9140(02)00250-3

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Mechanism of selenium hydride atomization, fate of free atoms and temperature distribution in an argon shielded, highly fuel-rich, hydrogen–oxygen diffusion micro-flame studied by atomic absorption spectrometry

Autor: Tomáš Matoušek, Jiří Dědina, Alessandro D'Ulivo, Leonardo Lampugnani

Publikováno v: J. Anal. At. Spectrom.. 17:253-257

The mechanism of selenium hydride atomization and the fate of free atoms were investigated in a flame-in-gas-shield atomizer. The spatial distribution of free atoms was estimated from lateral absorbance profiles scanned at various observation heights

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e1fada78ec7a6b24d7fcdd824696ffa0
https://doi.org/10.1039/b110530m

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Electrothermal atomic absorption spectrometric determination of selenium in biological fluids with rhodium modifier compared with hydride generation atomic spectrometric techniques

Autor: Ivan I Petrov, Dimiter L. Tsalev, Rositsa Georgieva, Roberto Zamboni, Alessandro D'Ulivo, Leonardo Lampugnani, Katia Marcucci

Publikováno v: Microchemical Journal. 70:103-113

Analytical procedures for direct electrothermal atomic absorption spectrometric (ET-AAS) determination of selenium in urine, blood serum and solubilized hair, employing rhodium modifier (10–20 μg) in a transverse-heated graphite atomizer (THGA) wi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e3d7e3c7e87914e0fb689e6653651be6
https://doi.org/10.1016/s0026-265x(01)00105-9

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Improving the analytical performance of hydride generation non-dispersive atomic fluorescence spectrometry. Combined effect of additives and optical filters

Autor: Roberto Zamboni, Emilia Bramanti, Leonardo Lampugnani, Alessandro D'Ulivo

Publikováno v: Spectrochimica acta. Part B, Atomic spectroscopy 56 (2001): 1893–1907. doi:10.1016/S0584-8547(01)00341-X
info:cnr-pdr/source/autori:D'Ulivo, A (D'Ulivo, A); Bramanti, E (Bramanti, E); Lampugnani, L (Lampugnani, L); Zamboni, R (Zamboni, R)/titolo:Improving the analytical performance of hydride generation non-dispersive atomic fluorescence spectrometry. Combined effect of additives and optical filters/doi:10.1016%2FS0584-8547(01)00341-X/rivista:Spectrochimica acta. Part B, Atomic spectroscopy/anno:2001/pagina_da:1893/pagina_a:1907/intervallo_pagine:1893–1907/volume:56

The effects of tetrahydroborate and acid concentration and the presence Of L-cysteine and thiourea were investigated in the determination of As, Bi and Sn using continuous flow hydride generation atomic fluorescence spectrometry (HG AFS). The aim was

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ac2a06c17600ca8acd37c98e2d6aec9
https://doi.org/10.1016/s0584-8547(01)00341-x

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Selective determination of thiolic proteins by hydrophobic interaction chromatography coupled with on-line cold vapour atomic fluorescence spectrometry

Autor: Alessandro D'Ulivo, Emilia Bramanti, Leonardo Lampugnani, Maria Spinetti, Roberto Zamboni, Serena Lucchesini, Giorgio Raspi

Publikováno v: J. Anal. At. Spectrom.. 16:166-171

A new analytical method is proposed for the determination and characterization of thiolic proteins, based on hydrophobic interaction chromatography (HIC) coupled on-line with cold vapour atomic fluorescence spectrometry (CVAFS). Thiolic groups are de

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bb086285e857a3eae292ab5277735cc8
https://doi.org/10.1039/b007372p

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Permanent iridium modifier deposited on tungsten and zirconium-treated platforms in electrothermal atomic absorption spectrometry: vaporization of bismuth, silver and tellurium

Autor: Vera I. Slaveykova, Elvira De Giglio, Leonardo Lampugnani, Luigia Sabbatini, Dimiter L. Tsalev

Publikováno v: Spectrochimica Acta. B, Atomic Spectroscopy, Vol. 54, No 3-4 (1999) pp. 455-467

The stabilizing role of permanent iridium modifier deposited on tungsten-treated (WTP) and zirconium-treated (ZrTP) platforms of transversely heated graphite atomizer (THGA) was studied in detail by electrothermal atomic absorption spectrometry (ETAA

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da9f29f312877c4714e19292bf9c16cc
https://doi.org/10.1016/s0584-8547(98)00244-4

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