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ETV-ICPMS

Ludke C and Hoeemann E (1996) Analysis of particulates in automotive catalyst exhausts by ETV-ICPMS. Fresenius J Anal Chem 355 261-263. [Pg.1081]

Hub,W,Anqjhlett, H. (1994) Application of ETV-ICPMS in semiconductor process control. Fresenius Journal of Analytical Chemistry, 350,587-592. [Pg.929]

However, although the techniques mentioned above are able to provide results of sufficient quality in many analytical situations, there are still some other instances where specific problems may hamper their use for example, analysis of a liquid sample, the requirement of very low LODs, the lack of calibration standards, or the occurrence of interferences. In such instance, electrothermal vaporization inductively coupled plasma mass spectrometry (ETV-ICPMS) may constitute a versatile alternative, overcoming these and other inconveniences. As will be shown in this chapter, the unique characteristics of ETV-ICPMS provide unique capabilities so that difficult analytical situations can be addressed... [Pg.1063]

In spite of all the advantages mentioned above, ETV-ICPMS, the introduction of which 25 years ago was received with great enthusiasm by the analytical community, has failed to become a standard introduction system for ICPMS. Nowadays, its use is mainly restricted to research centers and academia, not only in the field of polymer analysis, but also in every other field. The reason is perhaps related to the more recent introduction of microflow nebulizers that also show some of the advantages displayed by ETV (low sample consumption, higher analyte introduction efficiency). Moreover, the lack of the general success of ETV can also in part... [Pg.1064]

Although a wide variety of electrothermal vaporizers have been described in the literature (including strips, coils, rods, or furnaces made out of metals characterized by a high melting point, such as Ta, W, or Pt), the evolution of ETV-ICPMS has led to the unified trend of using graphite tube furnaces as vaporizers. In fact, graphite... [Pg.1065]

Different methodologies have been used for detecting and quantifying analyte losses in an ETV system, a general recap of which can be found in Friese et al. [10]. By using these methodologies, an important number of scientists have studied analyte transport efficiency for ETV-ICPMS. In 1988, Kantor described the most widely... [Pg.1066]

FIGURE 44.2 Analyte separation in ETV-ICPMS as a function of volatility. Different vaporization temperatures were applied for each group of analytes [18]. Reproduced with permission of the Royal Society of Chemistry (http //rsc.org/Publishing/Journals/ JA/article.asp doi=bl01588p). [Pg.1067]

Apart from the nuclides selected for quantification purposes, very often some additional ion signals are monitored for diagnostic or correction purposes. Similarly to conventional pneumatic nebuhzation inductively coupled plasma mass spectrometry (PN-ICPMS), these include nuclides used as internal standards or signals used for mathematical correction of spectral interferences. As a result of the particular nature of ETV-ICPMS, it is advisable to also select some other diagnostic signals, aiding in the process of method development or improving quality control once the method is developed. [Pg.1068]

The ultimate goal of all methods that use ETV/ atomization (e.g., GFAAS, ETV-ICP-OES/MS) is to achieve a selective atomization/vaporization of the analyte(s), free from solvent or matrix covaporization [15], This requisite is particularly important in the case of ETV-ICPMS in order to minimize the frequently observed spectral and nonspectral interferences. Moreover, selective analyte vaporization may also help simplifying the calibration protocol for quantitative analysis, allowing the use of aqueous standards, even for analysis of complex samples. [Pg.1069]

As mentioned in Section 44.2, one of the main disadvantages of ETV-ICPMS is the variable transport efficiency shown by elements of different vola ties or present in different matrices. This effect leads to very strong matrix effects observed in ETV-ICPMS measurements, which obviously can be problematic when quantitative determination is intended. [Pg.1070]

TABLE 44.1 Chemical Modifiers often Used in ETV-ICPMS... [Pg.1072]

OVERVIEW GENERAL CAPABILITIES OF ETV-ICPMS FOR TRACE ANALYSIS OF POLYMERS... [Pg.1073]

Overall, it should be clear that calibration is a delicate point of reflection and/or discussion when working with ETV-ICPMS, and therefore, it is not surprising that this is often one of the main issues discussed in ETV-ICPMS papers reporting quantitative applications. [Pg.1073]

The previous sections have illustrated that ETV-ICPMS presents a set of very interesting capabilities for polymer analysis that can be summarized as follows ... [Pg.1073]

In the case of polymer analysis, however, not all of these capabilities have been used, at least, not to the same degree. In fact, the main reason for the scientists working in this field for opting for this technique has been related with its capability to directly deal with heavy matrices and, especially, solid samples. This can be easily seen in Table 44.2, wherein the publications reporting polymer analysis by means of ETV-ICPMS that were published in the last 10 years in the field are cited. [Pg.1073]

As derived from data included in Table 44.2, most of the published polymer-related ETV-ICPMS applications deal with direct solid sampling analysis (or direct analysis of organic liquids), where the capability to reduce spectral and nonspectral interferences from such a heavy matrix is featured. A judicious selection of the ETV program in order to achieve this goal (including temperature programming and/or addition of modifiers if needed) was in all cases crucial for optimum results to be obtained and often permit the use of aqueous standards for calibration. [Pg.1073]

Polyamide Al, Mn, Si SoUd sampling and dissolution in formic acid AS, MMS" Comparison between GFAAS and ETV-ICPMS [38]... [Pg.1074]

At this point, however, and as derived from a closer look at the publications included in Table 44.2, it is necessary to stress that selection of ETV-ICPMS for the direct analysis of solid polymers is normally not the first choice, and this approach is only deployed in those cases where the additional advantages offered by this technique are actually needed and some additional problems hamper the use of other direct solid sampling techniques such as XRF, LA-ICPMS, or LIBS (i.e., very low LODs are required, lack of a suitable solid calibration standard, or presence of matrix-related interferences). If these cir-... [Pg.1074]

Vanhaecke, E, Verstraete, M., Moens, L., Dams, R., Nekkers, M. (1999) Determination of the palladium content in a soUd plastic material by electrothermal vaporization ICP-mass spectrometry (ETV-ICPMS). Anal. Commun., 36,89-92. [Pg.1075]


See other pages where ETV-ICPMS is mentioned: [Pg.214]    [Pg.1063]    [Pg.1064]    [Pg.1064]    [Pg.1064]    [Pg.1064]    [Pg.1064]    [Pg.1064]    [Pg.1065]    [Pg.1065]    [Pg.1066]    [Pg.1066]    [Pg.1066]    [Pg.1067]    [Pg.1067]    [Pg.1067]    [Pg.1067]    [Pg.1068]    [Pg.1068]    [Pg.1068]    [Pg.1069]    [Pg.1070]    [Pg.1070]    [Pg.1071]    [Pg.1071]    [Pg.1071]    [Pg.1072]    [Pg.1074]    [Pg.1074]    [Pg.1074]    [Pg.1076]   


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ETV-ICPMS for Analysis of Polymers

ICPMS

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