Comparative efficacy of platinum group metal modifiers in electrothermal atomic absorption spectrometry

Volynsky, Anatoly B.

doi:10.1016/j.sab.2004.07.005

Cited by 43 publications

(25 citation statements)

References 115 publications

(247 reference statements)

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“…These experiments were completed over a long period of time, and the curves (in Figs. [1][2][3][4] were drawn according to the data obtained on different days. Therefore, some small differences in the curves, obtained on different days, should not be overemphasized.…”

Section: The Effect Of the Amount Of Agnps On The Determination Of Armentioning

confidence: 99%

“…Modifiers have several possible interactions: (i) converting the matrix to a volatile and/or non-interfering form; (ii) forming a less volatile compound with the analyte; and (iii) physically protecting the analyte and preventing its removal from the furnace. The action mechanisms of modifiers have been extensively studied [1][2][3][4] and so will not be overemphasized here. Organic and inorganic compounds (e.g.…”

Section: Introductionmentioning

confidence: 99%

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The use of silver nanoparticles as an effective modifier for the determination of arsenic and antimony by electrothermal atomic absorption spectrometry

Gündüz

Akman

Baysal

et al. 2010

Spectrochimica Acta Part B: Atomic Spectroscopy

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Section: The Effect Of the Amount Of Agnps On The Determination Of Armentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The use of silver nanoparticles as an effective modifier for the determination of arsenic and antimony by electrothermal atomic absorption spectrometry

Gündüz

Akman

Baysal

et al. 2010

Spectrochimica Acta Part B: Atomic Spectroscopy

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“…These temperature parameters are in agreement with those previously reported for As determination using Pd as chemical modifier (without hydrogen addition). 35 …”

Section: Pyrolysis and Atomization Profiles For Arsenic In Barium Sulmentioning

confidence: 99%

Arsenic determination in pharmaceutical grade barium sulfate using direct solid sampling electrothermal atomic absorption spectrometry

Bolzan¹,

Moraes²,

Mattos³

et al. 2010

J. Braz. Chem. Soc.

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Um método para determinação de arsênio em BaSO 4 por espectrometria de absorção atômica com aquecimento eletrotérmico e introdução de amostras sólidas (SoS-ET AAS) é descrito. Foram avaliados dois sistemas de correção de fundo (BG), deutério e efeito Zeeman (Z). Com o uso combinado de hidrogênio e Pd o BG foi diminuído. Resultados exatos e precisos foram obtidos usando Z-SoS-ET AAS. O desvio padrão relativo usando Z-SoS-ET AAS foi menor que 9,5%. O limite de detecção foi 0,005 mg g -1 e a massa característica foi 25,4 pg. Os resultados foram comparados com os obtidos usando o método de preparo de amostras sugerido pela Farmacopeia Europeia, com determinação usando espectrometria de emissão ótica e espectrometria de massas, ambos com plasma indutivamente acoplado, porém os resultados foram cerca de 20% menores. Vantagens como simplicidade, elevada frequência de determinações e boa exatidão foram obtidos em comparação com o método descrito na farmacopeia.A method for arsenic determination in pharmaceutical grade BaSO 4 by solid sampling electrothermal atomic absorption spectrometry (SoS-ET AAS) is described. Two background (BG) correction systems, deuterium and Zeeman-effect (Z), were evaluated. Background was decreased by using hydrogen combined with Pd. Accurate and precise results were obtained using Z-SoS-ET AAS. Relative standard deviation using Z-SoS-ET AAS was lower than 9.5%. Limit of detection was 0.005 mg g -1 and characteristic mass was 25.4 pg. Results were also compared with those obtained using the preparation method suggested by European Pharmacopoeia for BaSO 4 followed by determination using inductively coupled plasma optical emission spectrometry and inductively coupled plasma mass spectrometry. Results were around 20% lower than results obtained using the proposed method. Some advantages as simplicity, higher sample throughput were found when compared with the official method currently described in pharmacopoeia.

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“…Advantages and drawbacks of slurry sampling (Arslan and Tyson, 2007;Pereira et al, 2006;Cal-Prieto et al, 2002;Bara"kiewicz, 2002;Vin˜as et al, 2000) as well as application of chemical modifiers in electrothermal atomic absorption spectroscopy are widely discussed (Acar, 2005;Volynski, 2004;Ortner et al, 2002;Acar et al, 2000;Lima et al, 1998).…”

Section: Introductionmentioning

confidence: 99%

Leaching of cadmium and lead from dried fruits and fruit teas to infusions and decoctions

Bobrowska-Grzesik

Jakóbik‐Kolon

2008

Journal of Food Composition and Analysis

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Comparative efficacy of platinum group metal modifiers in electrothermal atomic absorption spectrometry

Cited by 43 publications

References 115 publications

The use of silver nanoparticles as an effective modifier for the determination of arsenic and antimony by electrothermal atomic absorption spectrometry

The use of silver nanoparticles as an effective modifier for the determination of arsenic and antimony by electrothermal atomic absorption spectrometry

Arsenic determination in pharmaceutical grade barium sulfate using direct solid sampling electrothermal atomic absorption spectrometry

Leaching of cadmium and lead from dried fruits and fruit teas to infusions and decoctions

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