Suppression of matrix effects in ICP-MS by high power operation of ICP

Application to precise determination of Rb, Sr, Y, Cs, Ba, REE, Pb, Th and U at ng g-1 levels in milligram silicate samples

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Abstract

We found that the suppression of signals for 88Sr, 140Ce and 238U in rock solution caused by rock matrix in ICP-MS (matrix effects) was reduced at high power operation (1.7 kW) of the ICP. To make the signal suppression by the matrix negligible, minimum dilution factors (DF) of the rock solution for Sr, Ce and U were 600, 400 and 113 at 1.1, 1.4 and 1.7 kW, respectively. Based on these findings, a rapid and precise determination method for Rb, Sr, Y, Cs, Ba, REE, Pb, Th and U using Fl (flow injection)-ICP-MS was developed. The amount of the sample solution required for FI-ICP-MS was 0.2 ml, so that 1.8 mg sample was sufficient for analysis with a detection limit of several ng g-1. Using this method, we determined the trace element concentrations in the USGS rock reference materials, DTS-1, PCC-1, BCR-1 and AGV-1, and the GSJ rock reference materials, JP-1, JB-1, -2, -3, JA-1, -2 and -3. The reproducibilities (RSD%) in replicate analyses (n=5) of BCR-1, AGV-1, JB-1, -2, -3, JA-1, -2, and -3 were <6%, and typically 2.5%. The difference between the average concentrations of this study for BCR-1 and those of the reference values were <2%. Therefore, it was concluded that the method can give reliable data for trace elements in silicate rocks.

Original languageEnglish
Pages (from-to)307-319
Number of pages13
JournalGeostandards Newsletter
Volume21
Issue number2
DOIs
Publication statusPublished - 1997

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Silicates
rare earth element
silicate
Rocks
matrix
rock
Trace Elements
trace element
Dilution
effect
dilution

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geology

Cite this

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title = "Suppression of matrix effects in ICP-MS by high power operation of ICP: Application to precise determination of Rb, Sr, Y, Cs, Ba, REE, Pb, Th and U at ng g-1 levels in milligram silicate samples",
abstract = "We found that the suppression of signals for 88Sr, 140Ce and 238U in rock solution caused by rock matrix in ICP-MS (matrix effects) was reduced at high power operation (1.7 kW) of the ICP. To make the signal suppression by the matrix negligible, minimum dilution factors (DF) of the rock solution for Sr, Ce and U were 600, 400 and 113 at 1.1, 1.4 and 1.7 kW, respectively. Based on these findings, a rapid and precise determination method for Rb, Sr, Y, Cs, Ba, REE, Pb, Th and U using Fl (flow injection)-ICP-MS was developed. The amount of the sample solution required for FI-ICP-MS was 0.2 ml, so that 1.8 mg sample was sufficient for analysis with a detection limit of several ng g-1. Using this method, we determined the trace element concentrations in the USGS rock reference materials, DTS-1, PCC-1, BCR-1 and AGV-1, and the GSJ rock reference materials, JP-1, JB-1, -2, -3, JA-1, -2 and -3. The reproducibilities (RSD{\%}) in replicate analyses (n=5) of BCR-1, AGV-1, JB-1, -2, -3, JA-1, -2, and -3 were <6{\%}, and typically 2.5{\%}. The difference between the average concentrations of this study for BCR-1 and those of the reference values were <2{\%}. Therefore, it was concluded that the method can give reliable data for trace elements in silicate rocks.",
author = "Akio Makishima and Eizou Nakamura",
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T1 - Suppression of matrix effects in ICP-MS by high power operation of ICP

T2 - Application to precise determination of Rb, Sr, Y, Cs, Ba, REE, Pb, Th and U at ng g-1 levels in milligram silicate samples

AU - Makishima, Akio

AU - Nakamura, Eizou

PY - 1997

Y1 - 1997

N2 - We found that the suppression of signals for 88Sr, 140Ce and 238U in rock solution caused by rock matrix in ICP-MS (matrix effects) was reduced at high power operation (1.7 kW) of the ICP. To make the signal suppression by the matrix negligible, minimum dilution factors (DF) of the rock solution for Sr, Ce and U were 600, 400 and 113 at 1.1, 1.4 and 1.7 kW, respectively. Based on these findings, a rapid and precise determination method for Rb, Sr, Y, Cs, Ba, REE, Pb, Th and U using Fl (flow injection)-ICP-MS was developed. The amount of the sample solution required for FI-ICP-MS was 0.2 ml, so that 1.8 mg sample was sufficient for analysis with a detection limit of several ng g-1. Using this method, we determined the trace element concentrations in the USGS rock reference materials, DTS-1, PCC-1, BCR-1 and AGV-1, and the GSJ rock reference materials, JP-1, JB-1, -2, -3, JA-1, -2 and -3. The reproducibilities (RSD%) in replicate analyses (n=5) of BCR-1, AGV-1, JB-1, -2, -3, JA-1, -2, and -3 were <6%, and typically 2.5%. The difference between the average concentrations of this study for BCR-1 and those of the reference values were <2%. Therefore, it was concluded that the method can give reliable data for trace elements in silicate rocks.

AB - We found that the suppression of signals for 88Sr, 140Ce and 238U in rock solution caused by rock matrix in ICP-MS (matrix effects) was reduced at high power operation (1.7 kW) of the ICP. To make the signal suppression by the matrix negligible, minimum dilution factors (DF) of the rock solution for Sr, Ce and U were 600, 400 and 113 at 1.1, 1.4 and 1.7 kW, respectively. Based on these findings, a rapid and precise determination method for Rb, Sr, Y, Cs, Ba, REE, Pb, Th and U using Fl (flow injection)-ICP-MS was developed. The amount of the sample solution required for FI-ICP-MS was 0.2 ml, so that 1.8 mg sample was sufficient for analysis with a detection limit of several ng g-1. Using this method, we determined the trace element concentrations in the USGS rock reference materials, DTS-1, PCC-1, BCR-1 and AGV-1, and the GSJ rock reference materials, JP-1, JB-1, -2, -3, JA-1, -2 and -3. The reproducibilities (RSD%) in replicate analyses (n=5) of BCR-1, AGV-1, JB-1, -2, -3, JA-1, -2, and -3 were <6%, and typically 2.5%. The difference between the average concentrations of this study for BCR-1 and those of the reference values were <2%. Therefore, it was concluded that the method can give reliable data for trace elements in silicate rocks.

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U2 - 10.1111/j.1751-908X.1997.tb00678.x

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EP - 319

JO - Geostandards and Geoanalytical Research

JF - Geostandards and Geoanalytical Research

SN - 0150-5505

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ER -