Studies on end-on-viewed microwave plasma torch atomic emission spectrometry

New inductively coupled plasma for atomic spectrometry: the microwave-sustained, inductively coupled, atmospheric-pressure plasma (MICAP)

“…Comparison of the MICAP performance to that of other MIPs is appropriate. The designs of Hammer, 16 Okamoto 15 and Jin et al 19,30,31 are particularly appropriate due both to their analytical performance and that they are commercially available. The Hammer and Okamoto toroidal MIPs are formed at high power ($1 kW) and are sustained in nitrogen (total ow $ 20 L min À1 ); samples were introduced as wet aerosols (from a pneumatic nebulizer) and the plasmas were viewed axially (which produced the best performance).…”

“…In this pilot study, we perform the rst spectral and analytical evaluation of the MICAP as a source for OES. The structure of the plasma, spectral background in nitrogen and air, stability, limits of detection, and tolerance to solvent loading are critically compared to OES performance for the argon ICP and earlier MIPs (namely those of Hammer, 16 Okamoto, 17 and Jin et al 19 ). The potential of the source to serve as a competitive alternative to present MIPs and the ICP is discussed.…”

Heated-spray chamber-based low sample consumption system for inductively coupled plasma spectrometry

“…24 These kinds of studies are specially relevant if a desolvation system is used. 25 The aim of the present work was thus to systematically evaluate the effect of heating of the chamber walls on the ICP-AES performance while working at very low liquid flow rates. A second goal was to compare its behaviour at room and high temperatures against a DIHEN and a d-DIHEN.…”

Evaluation of figures of merit for Zn determination in environmental and biological samples using EDL excited AFS in a new radiofrequency capacitively coupled plasma

“…Our detection limit is comparable to that achieved with other AES or AFS analytical systems using low-powered microwave plasma sources sustained in Ar(He) atmosphere (1.2-40 mg L À1 ). [10][11][12][13]28,29 On the other hand, the analytical capability for Zn in our experimental set-up is inferior to those in the well-adopted technologies, such as ICP-AES (5 mg L À1 ) 30 and ICP-MS (0.11-0.15 mg L À1 ). 9 However, the new analytical system could be an alternative to ICP-MS in less-privileged laboratories, with the advantage of low initial and operating costs.…”