Plasma molecular species and matrix effects in the Hummer cavity microwave induced plasma optical emission spectrometry

E. V. Polyakova; O. V. Pelipasov

doi:10.1016/j.sab.2020.105988

Plasma molecular species and matrix effects in the Hummer cavity microwave induced plasma optical emission spectrometry

E. V. Polyakova, O. V. Pelipasov

Analytical Chemistry Section

Research output: Contribution to journal › Article › peer-review

Abstract

The effect of matrix elements with ionization potentials from 5.72 to 10.48 eV (In, Ga, Cu, Pb, Cd, Bi, Zn, P) on atom and ion excitation temperatures, magnesium ratio, plasma molecular species and analytical signals more 30 trace elements in atmospheric pressure nitrogen microwave induced plasma (Agilent 4100 AES MP) have been studied. The concentration of matrix elements was varied in the range of 0–1% w·w⁻¹. It was shown that in the Hammer cavity, intensities of atomic and ionic lines with similar energies change in a similar way with increasing concentration of the matrix element. It was shown that, in general, the matrix effect doesn't correlate with the temperature. The Mg(II)/Mg(I) and both N₂⁺/OH and N₂⁺/N₂ correlates with the ionization potential of the matrix element and reflect the degree of its manifestation.

Original language	English
Article number	105988
Number of pages	6
Journal	Spectrochimica Acta - Part B Atomic Spectroscopy
Volume	173
DOIs	https://doi.org/10.1016/j.sab.2020.105988
Publication status	Published - Nov 2020

Keywords

Hammer cavity
Matrix effect
MIP-OES
Plasma molecular species
Plasma parameters
MP-AES
EASILY IONIZABLE ELEMENTS
CALCIUM
NITROGEN
MULTIENERGY CALIBRATION
INDUCTIVELY-COUPLED PLASMA
NITRIC-ACID

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title = "Plasma molecular species and matrix effects in the Hummer cavity microwave induced plasma optical emission spectrometry",

abstract = "The effect of matrix elements with ionization potentials from 5.72 to 10.48 eV (In, Ga, Cu, Pb, Cd, Bi, Zn, P) on atom and ion excitation temperatures, magnesium ratio, plasma molecular species and analytical signals more 30 trace elements in atmospheric pressure nitrogen microwave induced plasma (Agilent 4100 AES MP) have been studied. The concentration of matrix elements was varied in the range of 0–1% w·w−1. It was shown that in the Hammer cavity, intensities of atomic and ionic lines with similar energies change in a similar way with increasing concentration of the matrix element. It was shown that, in general, the matrix effect doesn't correlate with the temperature. The Mg(II)/Mg(I) and both N2+/OH and N2+/N2 correlates with the ionization potential of the matrix element and reflect the degree of its manifestation.",

keywords = "Hammer cavity, Matrix effect, MIP-OES, Plasma molecular species, Plasma parameters, MP-AES, EASILY IONIZABLE ELEMENTS, CALCIUM, NITROGEN, MULTIENERGY CALIBRATION, INDUCTIVELY-COUPLED PLASMA, NITRIC-ACID",

author = "Polyakova, {E. V.} and Pelipasov, {O. V.}",

year = "2020",

month = nov,

doi = "10.1016/j.sab.2020.105988",

language = "English",

volume = "173",

journal = "Spectrochimica Acta, Part B: Atomic Spectroscopy",

issn = "0584-8547",

publisher = "Elsevier",

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AU - Polyakova, E. V.

AU - Pelipasov, O. V.

PY - 2020/11

Y1 - 2020/11

N2 - The effect of matrix elements with ionization potentials from 5.72 to 10.48 eV (In, Ga, Cu, Pb, Cd, Bi, Zn, P) on atom and ion excitation temperatures, magnesium ratio, plasma molecular species and analytical signals more 30 trace elements in atmospheric pressure nitrogen microwave induced plasma (Agilent 4100 AES MP) have been studied. The concentration of matrix elements was varied in the range of 0–1% w·w−1. It was shown that in the Hammer cavity, intensities of atomic and ionic lines with similar energies change in a similar way with increasing concentration of the matrix element. It was shown that, in general, the matrix effect doesn't correlate with the temperature. The Mg(II)/Mg(I) and both N2+/OH and N2+/N2 correlates with the ionization potential of the matrix element and reflect the degree of its manifestation.

AB - The effect of matrix elements with ionization potentials from 5.72 to 10.48 eV (In, Ga, Cu, Pb, Cd, Bi, Zn, P) on atom and ion excitation temperatures, magnesium ratio, plasma molecular species and analytical signals more 30 trace elements in atmospheric pressure nitrogen microwave induced plasma (Agilent 4100 AES MP) have been studied. The concentration of matrix elements was varied in the range of 0–1% w·w−1. It was shown that in the Hammer cavity, intensities of atomic and ionic lines with similar energies change in a similar way with increasing concentration of the matrix element. It was shown that, in general, the matrix effect doesn't correlate with the temperature. The Mg(II)/Mg(I) and both N2+/OH and N2+/N2 correlates with the ionization potential of the matrix element and reflect the degree of its manifestation.

KW - Hammer cavity

KW - Matrix effect

KW - MIP-OES

KW - Plasma molecular species

KW - Plasma parameters

KW - MP-AES

KW - EASILY IONIZABLE ELEMENTS

KW - CALCIUM

KW - NITROGEN

KW - MULTIENERGY CALIBRATION

KW - INDUCTIVELY-COUPLED PLASMA

KW - NITRIC-ACID

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M3 - Article

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JO - Spectrochimica Acta, Part B: Atomic Spectroscopy

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SN - 0584-8547

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