Multielement detection limits and sample nebulization efficiencies of an improved ultrasonic nebulizer and a conventional pneumatic nebulizer in inductively coupled plasma-atomic emission spectrometry

Olson, K. W.; Haas, W.J. De; Fassel, Velmer A.

doi:10.1021/ac50012a032

Cited by 210 publications

(59 citation statements)

References 27 publications

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“…The detection limits improved compared to Set 2 (pneumatic nebulization) conditions by a factor of ten. The main reason for the improvement was a large increase in analyte signal resulting from the high efficiency of ultrasonic nebulization [22][23][24]. The overall background intensity remained roughly the same.…”

Section: Comparison Of Resultsmentioning

confidence: 96%

Performance evaluation of an axially viewed horizontal inductively coupled plasma for optical emission spectrometry

Ivaldi

Tyson²

1995

Spectrochimica Acta Part B: Atomic Spectroscopy

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A performance evaluation of a horizontal axially viewed inductively coupled plasma (ICP) for optical emission spectrometry is presented. The main contribution of this work is the elucidation of the sources of analytical performance differences using practical diagnostics in the comparison of axial and conven tional radial viewing of the ICP. Figures of merit such as detection limit, background equivalent concen tration, precision, and dynamic range are compared for both viewing arrangements. The detection limit improvements, with axial viewing, known from previous work in the literature, are shown to be understood in the context of the signal-to-background-ratio relative-standard-deviation-of-the-background (SBR RSDB) theory. The usefulness of the SBR-RSDB approach as a diagnostic tool for understanding the detection limit improvement and identifying performance differences is demonstrated. This approach can be further utilized for quality control and quality assurance of instrument performance and detection limit results. Other characteristic differences between axial and radial viewing are presented including matrix effects on line signals and the magnitudes of spectral interferences from OH bands. An overall improve ment factor of five in detection power was observed when using axial viewing compared with radial view ing.

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Section: Comparison Of Resultsmentioning

confidence: 96%

Performance evaluation of an axially viewed horizontal inductively coupled plasma for optical emission spectrometry

Ivaldi

Tyson²

1995

Spectrochimica Acta Part B: Atomic Spectroscopy

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“…As already quoted in the earlier literature concerning USN-ICP-AES [2][3][4][5] differences in matrix composition between standards and samples may often lead to changes in efficiency of aerosol formation and transport but they are also responsible for different evolution of phenomena occurring in the plasma itself. These drawbacks are also observed using conventional pneumatic nebulizers but they are less pronounced and may be more easily controlled during the analysis.…”

Section: Introductionmentioning

confidence: 96%

Additional considerations for trace element analysis of environmental matrices using inductively coupled plasma atomic emission spectrometry with ultrasonic nebulization

Hoenig¹,

Dočekalová²,

Baeten³

2000

Analusis

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Abstract. This work compares efficiencies of pneumatic and ultrasonic nebulizers and discusses drawbacks observed in trace element analyses of environmental matrices using ICP-AES with ultrasonic nebulization. The interference observed is mainly due to variable calcium content in samples; in most cases the excessive plasma loading by Ca is responsible for signal suppression of analyte elements. Such matrix effect may be managed to a certain extent using a classical internal standardisation that is discussed in details. Under well defined conditions, the ICP-AES-USN analysis of most trace elements leads to accurate results for matrices usually studied. However, due to chemical reactions occurring in the condensation stage of the ultrasonic nebulizer and subsequent analyte losses to the waste, the ICP-AES-USN analysis of copper and particularly of boron has to be avoided because it leads unavoidably to erroneous results. This drawback cannot be resolved by usual means of correction but may be overcome by using conventional pneumatic nebulizers.Keywords. Inductively coupled plasma atomic emission spectrometry -ultrasonic nebulization -trace elements -environmental samples -matrix interference -internal standards.

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“…of the sample that is transferred to droplets by a nebulizer such as an ultrasonic nebulizer. 12,13) Mistral Desolvation (MD) is the sample introduction method in which the heating-cooling process is applied to the primary droplets sprayed by a nebulizer with which a solvent is removed by selective evaporation and condensation so that the sensitivity can be improved by several times as compared with conventional methods.…”

Section: Sensitivity Improvement Mechanism Of the Mistral Desolvatingmentioning

confidence: 99%

Sensitivity Improvement Mechanism of the Mistral Desolvating Sample Introduction to ICP-MS/AES and Its Application to Steel Analysis

et al. 2018

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Multielement detection limits and sample nebulization efficiencies of an improved ultrasonic nebulizer and a conventional pneumatic nebulizer in inductively coupled plasma-atomic emission spectrometry

Cited by 210 publications

References 27 publications

Performance evaluation of an axially viewed horizontal inductively coupled plasma for optical emission spectrometry

Performance evaluation of an axially viewed horizontal inductively coupled plasma for optical emission spectrometry

Additional considerations for trace element analysis of environmental matrices using inductively coupled plasma atomic emission spectrometry with ultrasonic nebulization

Sensitivity Improvement Mechanism of the Mistral Desolvating Sample Introduction to ICP-MS/AES and Its Application to Steel Analysis

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