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Titolo:
Comparison of matrix effects in inductively coupled plasma using laser ablation and solution nebulization for dry and wet plasma conditions
Autore:
Chan, GCY; Chan, WT; Mao, XL; Russo, RE;
Indirizzi:
Univ Hong Kong, Dept Chem, Hong Kong, Hong Kong, Peoples R China Univ HongKong Hong Kong Hong Kong Peoples R China Kong, Peoples R China Lawrence Berkeley Lab, Berkeley, CA 94720 USA Lawrence Berkeley Lab Berkeley CA USA 94720 y Lab, Berkeley, CA 94720 USA
Titolo Testata:
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
fascicolo: 8, volume: 56, anno: 2001,
pagine: 1375 - 1386
SICI:
0584-8547(20010831)56:8<1375:COMEII>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
ATOMIC-EMISSION-SPECTROMETRY; EASILY IONIZABLE ELEMENT; ELECTRON NUMBER DENSITIES; GAS-FLOW RATE; ANALYTE EMISSION; ARGON PLASMA; SAMPLE INTRODUCTION; LINE-INTENSITIES; EXCITATION; WATER;
Keywords:
matrix effects; ICP; water loading; laser ablation; plasma diagnostics;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
45
Recensione:
Indirizzi per estratti:
Indirizzo: Russo, RE Univ Hong Kong, Dept Chem, Pokfulam Rd, Hong Kong, Hong Kong, Peoples R China Univ Hong Kong Pokfulam Rd Hong Kong Hong Kong Peoples R China
Citazione:
G.C.Y. Chan et al., "Comparison of matrix effects in inductively coupled plasma using laser ablation and solution nebulization for dry and wet plasma conditions", SPECT ACT B, 56(8), 2001, pp. 1375-1386

Abstract

Matrix effects of calcium in inductively coupled plasma-atomic emission spectrometry were investigated. Matrix effects were studied by monitoring theexcitation conditions of the plasma using Zn ionic to atomic spectral lineintensity ratios. Dry and wet inductively coupled plasmas with robust and non-robust conditions were compared. Laser ablation and solution nebulization sample introduction were used to produce the dry and wet plasma conditions, respectively. Low (0.61/min) and high (1.01/min) carrier gas flow rateswere used to produce the robust and non-robust conditions, respectively. No differences in the trend of matrix effects for dry and wet plasmas were observed at vertical positions above normal observation height (> 8 mm height above load coil) for low and high carrier gas flow rates. However, matrixeffects in the lower part of the plasma (< 8 mm height above load coil) were significantly different between dry and wet plasmas when a high carrier gas flow was used. The differences are likely due to the desolvation process. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/09/20 alle ore 22:51:28