1998
Use of internal standardization to compensate for a wide range of absorbance in the analysis of glasses by UV-laser ablation inductively coupled plasma atomic emission spectrometry
KANICKÝ, Viktor, Vítězslav OTRUBA a Jean - Michel MERMETZákladní údaje
Originální název
Use of internal standardization to compensate for a wide range of absorbance in the analysis of glasses by UV-laser ablation inductively coupled plasma atomic emission spectrometry
Autoři
KANICKÝ, Viktor (203 Česká republika, garant), Vítězslav OTRUBA (203 Česká republika) a Jean - Michel MERMET (250 Francie)
Vydání
Applied Spectroscopy, USA, Society Appl. Spectroscopy, 1998, 0003-7028
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10406 Analytical chemistry
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 1.917
Kód RIV
RIV/00216224:14310/98:00000032
Organizační jednotka
Přírodovědecká fakulta
Klíčová slova anglicky
Glass materials; Asorbance range; Atomic emission spectrometry; Inductively coupled plasma; Laser ablation; Internal standardization; Acoustic signal normalization
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 29. 6. 2007 09:57, prof. RNDr. Viktor Kanický, DrSc.
V originále
A frequency-tripled Q-switched Nd:YAG laser (355 nm, 10 Hz, 5 mJ per shot, Surelite, Continuum) was used for the ablation of glasses as direct solid sampling for inductively coupled plasma atomic emission spectrometric multichannel detection. The colored and transparent glasses were glass standards used for calibration in ii-ray fluorescence spectrometry and exhibited a 0.15-3.5 absorbance range at 355 nn. Translation of the target (1 mm s(-1)) with respect to the laser beam was used over a length of 16 mm. The depths and widths of the corresponding patterns were not related to the absorbance of the samples. However, the analytical Line intensities were efficiently compensated for by using the Si(I) 251.611 nm line as an internal standard. The repeatability was therefore improved for Na, K, Ca, Mg, Sr, Ba, Zn, Pb, Al, Fe, and Sb, as well as the correlation coefficients of the regression and the centroid uncertainties of the calibration graph. Preliminary investigations were carried out to evaluate the acoustic signal emitted by the microplasma as external standardization. However, a negative correlation was found with the Line intensity signals under our operating conditions.
Česky
A frequency-tripled Q-switched Nd:YAG laser (355 nm, 10 Hz, 5 mJ per shot, Surelite, Continuum) was used for the ablation of glasses as direct solid sampling for inductively coupled plasma atomic emission spectrometric multichannel detection. The colored and transparent glasses were glass standards used for calibration in ii-ray fluorescence spectrometry and exhibited a 0.15-3.5 absorbance range at 355 nn. Translation of the target (1 mm s(-1)) with respect to the laser beam was used over a length of 16 mm. The depths and widths of the corresponding patterns were not related to the absorbance of the samples. However, the analytical Line intensities were efficiently compensated for by using the Si(I) 251.611 nm line as an internal standard. The repeatability was therefore improved for Na, K, Ca, Mg, Sr, Ba, Zn, Pb, Al, Fe, and Sb, as well as the correlation coefficients of the regression and the centroid uncertainties of the calibration graph. Preliminary investigations were carried out to evaluate the acoustic signal emitted by the microplasma as external standardization. However, a negative correlation was found with the Line intensity signals under our operating conditions.
Návaznosti
| GA203/94/0511, projekt VaV |
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