Correlation study of internal standardization in inductively coupled plasma atomic emission spectrometry

Belchamber, R.M.; Horlick, Gary

doi:10.1016/0584-8547(82)80033-5

Cited by 57 publications

(28 citation statements)

References 14 publications

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“…It is known from previous studies [1][2][3][4][5][6][7][8][9]18] that the RSD of a signal arises from contributions of various noise sources. It has been recognized that the best possible precision is that which arises only from the total shot noise in the signal.…”

Section: Calculation Of Limiting Precisionmentioning

confidence: 99%

“…It is well known that internal standardization is an effective means for improving the precision of the atomic emission signals from the inductively coupled plasma (ICP) [1][2][3][4][5][6][7][8][9]. To obtain the best results, it is useful to have instrumentation in which the analyte signal and internal standard signal can be measured simultaneously so that real-time internal standard cor rection can be performed [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

“…To obtain the best results, it is useful to have instrumentation in which the analyte signal and internal standard signal can be measured simultaneously so that real-time internal standard cor rection can be performed [1][2][3]. This has been demon strated with conventional, radial ICP viewing using a custom segmented-array charge coupled device detec tion system [9].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Real-time internal standardization with an axially-viewed inductively coupled plasma for optical emission spectrometry

Ivaldi

Tyson²

1996

Spectrochimica Acta Part B: Atomic Spectroscopy

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Section: Calculation Of Limiting Precisionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Real-time internal standardization with an axially-viewed inductively coupled plasma for optical emission spectrometry

Ivaldi

Tyson²

1996

Spectrochimica Acta Part B: Atomic Spectroscopy

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“…Considering the good results reported in literature 15,20 and the ones obtained in a previous work with the same plasma equipment, 18 yttrium was selected as a possible internal standard.…”

Section: Plasma Optimizationmentioning

confidence: 99%

Analysis of liquid stevioside and cyclamate-saccharin dietetic sweeteners by inductively coupled plasma optical emission spectrometry without sample treatment

Sousa¹,

Baccan²,

Cadore³

2006

J. Braz. Chem. Soc.

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A determinação de espécies inorgânicas em adoçantes líquidos à base de ciclamato-sacarina e esteviosídeo é descrita. O método, sem tratamento prévio da amostra, é baseado na espectrometria de emissão óptica em plasma com acoplamento indutivo. Parâmetros instrumentais foram otimizados de acordo com a robustez do plasma e a razão sinal analítico/ sinal de fundo. A exatidão foi avaliada para As, Ca, Cd, Co, Cu, Fe, Mg, Mn, Ni, Pb e Zn empregando experimentos de adição e recuperação. Os valores de recuperação ficaram entre 90 e 110% para a maioria dos analitos, os RSDs obtidos foram, em geral, menores que 5% e os limites de detecção ficaram na faixa de 0,7 (Mg) a 71 (Pb) μg L -1. Não foi detectada a presença de As, Co e Pb. As concentrações de Cu e Zn foram semelhantes para as amostras de ciclamatosacarina e esteviosídeo enquanto as demais espécies mostraram diferenças.An analytical method for the determination of inorganic species in liquid cyclamate-saccharin and stevioside sweeteners is presented. The method is based on inductively coupled plasma optical emission spectrometry and allowed analysis without prior sample treatment. Instrumental parameters were optimized according to plasma robustness and the signal to background ratio. The accuracy of the method was evaluated for As, Ca, Cd, Co, Cu, Fe, Mg, Mn, Ni, Pb, and Zn employing analyte addition and recovery experiments. The recovery values were between 90 and 110% for the majority of the analytes, the RSDs obtained were, in general, lower than 5% and the limits of detection were in the range 0.7 (Mg) -71 (Pb) μg L -1 . The analyses of different samples indicated that the average values of many of the analytes studied were different for the two types of samples. Copper and Zn concentrations were in the same range and As, Co, and Pb were not detected in any samples.

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“…Uchida et al [8] used Y as an internal standard and obtained in ICP-OES a 2-to 20-fold improvement in precision for a series of elements. Belchamber and Horlick [9] found that the measurement precision was generally improved by a factor of two using Sc as an internal standard. In a correlation study, Myers and Tracy [10] applied Mn as an internal standard studying the noise behaviour of 20 analytically important elements in ICP-OES.…”

Section: Introductionmentioning

confidence: 99%

Improved accuracy for the analysis of soft magnetic alloys by inductively-coupled plasma atomic emission spectrometry by using advanced standardization procedures

Wüstkamp

Kucharkowski

Broekaert

1996

Analytical and Bioanalytical Chemistry

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The applicability of simultaneous ICP-OES for the accurate analysis of soft magnetic alloys has been investigated. Long-time signal variations of up to 40% can be observed under normal operating conditions. The scattering of the values can largely be compensated by a correction procedure with internal and external standardization where the intensity value of the analytical signal is first rationed to the simultaneously measured intensity of an internal standard line and after that recalibrated with an external standard. Not only the trueness but also the precision could be improved by using Cd as a real-time internal standard. This is attributed to a compensation for instrumental fluctuations as a result of the simultaneous measurement of both emission signals.

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Correlation study of internal standardization in inductively coupled plasma atomic emission spectrometry

Cited by 57 publications

References 14 publications

Real-time internal standardization with an axially-viewed inductively coupled plasma for optical emission spectrometry

Real-time internal standardization with an axially-viewed inductively coupled plasma for optical emission spectrometry

Analysis of liquid stevioside and cyclamate-saccharin dietetic sweeteners by inductively coupled plasma optical emission spectrometry without sample treatment

Improved accuracy for the analysis of soft magnetic alloys by inductively-coupled plasma atomic emission spectrometry by using advanced standardization procedures

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