Počet záznamů: 1
Determination of chlorite, muscovite, albite and quartz in claystones and clay shales by infrared spectroscopy and partial least-squares regression
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SYSNO ASEP 0449356 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Determination of chlorite, muscovite, albite and quartz in claystones and clay shales by infrared spectroscopy and partial least-squares regression Tvůrce(i) Ritz, M. (CZ)
Vaculíková, Lenka (UGN-S) RID, ORCID
Plevová, Eva (UGN-S) RID, ORCID
Matýsek, D. (CZ)
Mališ, J. (CZ)Celkový počet autorů 5 Zdroj.dok. Acta geodynamica et geomaterialia. - : Ústav struktury a mechaniky hornin AV ČR, v. v. i. - ISSN 1214-9705
Roč. 9, č. 4 (2012), s. 511-520Poč.str. 10 s. Forma vydání Online - E Jazyk dok. eng - angličtina Země vyd. CZ - Česká republika Klíč. slova claystone and clay shale ; infrared spectroscopy ; chemometrics ; chlorite ; muscovite Vědní obor RIV CB - Analytická chemie, separace CEP ED2.1.00/03.0082 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UGN-S - RVO:68145535 UT WOS 000312605700009 Anotace The objective of this work is the chemometric quantification of minerals in rocks. A chemometric method was developed for the determination of chlorite, muscovite, albite and quartz in claystones and clay shales using infrared spectroscopy. Bromide pellets and diffuse reflectance were used to measure the infrared spectra; principal component analysis and partial least-squares regression were used as chemometric methods. Spectral regions (4000-3000 cm(-1) and 1300-400 cm(-1)) containing important spectral information were chosen by principal component analysis. The calibration models were created by a partial least-squares regression. The mean relative error and relative standard deviation were calculated for the assessment of accuracy and reproducibility. The value of the mean relative error was about 10 % for most of the calibration models. The value of the relative standard deviation ranged from 1.1 to 3.0 % for most calibration models based on diffuse reflectance spectra and from 4.0 to 9.2 % for most calibration models based on spectra obtained with bromide pellets. Pracoviště Ústav geoniky Kontakt Lucie Gurková, lucie.gurkova@ugn.cas.cz, Tel.: 596 979 354 Rok sběru 2016 Elektronická adresa https://www.irsm.cas.cz/materialy/acta_content/2012_04/9.Ritz.pdf
Počet záznamů: 1