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|Research center of Embrapa/Collection:||Embrapa Pecuária Sudeste - Artigo em periódico indexado (ALICE)|
|Type of Material:||Artigo em periódico indexado (ALICE)|
|Authors:||MACHADO, R. C.|
PEREIRA FILHO, E. R.
NOGUEIRA, A. R. de A.
DONATI, G. L.
WILLIAMS, C. B.
PINHEIRO, F. C.
ANDRADE, D. F. de
SILVA, A. B. S. da
|Additional Information:||RAQUEL CARDOSO MACHADO, UFSCAR|
EDENIR RODRIGUES PEREIRA FILHO, UFSCAR.
ANA RITA DE ARAUJO NOGUEIRA, CPPSE
GEORGE LUIS DONATI, Wake Forest University
CHARLES B. WILLIAMS, Davidson College
FERNANDA COSTA PINHEIRO, UFSCAR
DANIEL FERNANDES DE ANDRADE, UFSCAR
ANA BEATRIZ SANTOS DA SILVA, UFSCAR
|Title:||Alternative approaches applied to inductively coupled plasma techniques: multi-flow and two-flow calibration.|
|Publisher:||Journal of the Brazilian Chemical Society, v.32, n.4, 2021.|
|Description:||Multi-flow calibration (MFC) is based on monitoring the analytical signal from a single calibration standard solution at several different nebulization gas flow rates (Q), which normalizes plasma conditions and minimizes matrix effects. In the present study, MFC was evaluated, for the first time, applied to inductively coupled plasma optical emission spectrometry (ICP OES) and inductively coupled plasma mass spectrometry (ICP-MS) to analyze different and complexmatrix samples. Al, As, Cd, Cr, Cu, Mn, Pb, and Zn were determined by ICP OES, while As, Cd, Co, Cu, Hg, Mo, Mn, Ni, Se, Sb, Pb, and V were determined by ICP-MS. MFC results were compared with those obtained using external standard calibration (EC) for both techniques and in all cases, MFC showed equal or superior accuracy (recoveries between 80-120%) compared to EC, and lower relative standard deviation (RSDs < 10%). Several tests were also performed using only two nebulization gas flows to build linear models for calibration (called two-flow calibration, TFC) and the accurate results (recoveries ranged from 80 to 110% for ICP OES and from 81 to 102% for ICP-MS) suggests that this strategy can be also applied, resulting in a method with high sample throughput.|
|Appears in Collections:||Artigo em periódico indexado (CPPSE)|
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