Validation of the method of analyzing Al2O3 through standard calibration methods and evaluation of its determination by a direct reading method using ICP-OES has been validated. Validation is done to determine the acceptability of the testing results because it does not use the standard method. Validation parameters consist of accuracy, precision, linearity, detection limit, quantitation limit, and estimated measurement uncertainty. Direct reading evaluation is done by comparing the Al2O3 calculated using a calibration curve with a direct reading from the ICP-OES instrument. Accuracy was determined using CRM and calculated as trueness by comparing the results of Al2O3 analysis measured by the values listed in the certificate and the results obtained 97.71%. Precision is determined by repeatability and the results are calculated as RSD and the results are 0.20% for CRM and 0.30% for bauxite samples or both less than 2%. Linearity is calculated as the coefficient of determination (R2) and the result is perfect, namely 1. The detection limit and quantization limit of the results of the calibration curve method showed that the results were 0.065mg / L and 0.23 mg / L respectively. The content of Al2O3 in the sample taking into account the uncertainty of measurement obtained the results of 44.98 ± 0.08%. The results of the evaluation of the direct reading method with t-test: Paired Two Sample for Means obtained a smaller t stat (-2.28) compared to the critical two-tail (3.18) which indicates that there is no difference between the calibration curve method and direct reading in Al2O3 testing.
Skip Nav Destination
Article navigation
21 April 2020
3RD INTERNATIONAL SEMINAR ON CHEMICAL EDUCATION: Trends, Applications, Changes in Chemical Education for the 4.0 Industrial Revolution
17 September 2019
Yogyakarta, Indonesia
Research Article|
April 21 2020
Validation of Al2O3 analysis by standard calibration method and evaluation of Al2O3 determine by direct reading using ICP-OES on bauxite samples
Thorikul Huda;
Thorikul Huda
a)
1
Chemical Analysis Department, Faculty of Mathematics and Natural Sciences Universitas Islam Indonesia
, Sleman, Yogyakarta, Indonesia
Search for other works by this author on:
Dyani Alifya;
Dyani Alifya
1
Chemical Analysis Department, Faculty of Mathematics and Natural Sciences Universitas Islam Indonesia
, Sleman, Yogyakarta, Indonesia
Search for other works by this author on:
Rossy Amal Shalih
Rossy Amal Shalih
2
A Directorate General of Customs and Excise, Ministry of Finance of Republic of Indonesia
, Indonesia
Search for other works by this author on:
AIP Conf. Proc. 2229, 030006 (2020)
Citation
Thorikul Huda, Dyani Alifya, Rossy Amal Shalih; Validation of Al2O3 analysis by standard calibration method and evaluation of Al2O3 determine by direct reading using ICP-OES on bauxite samples. AIP Conf. Proc. 21 April 2020; 2229 (1): 030006. https://doi.org/10.1063/5.0002685
Download citation file:
Pay-Per-View Access
$40.00
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
68
Views
Citing articles via
Inkjet- and flextrail-printing of silicon polymer-based inks for local passivating contacts
Zohreh Kiaee, Andreas Lösel, et al.
Design of a 100 MW solar power plant on wetland in Bangladesh
Apu Kowsar, Sumon Chandra Debnath, et al.
Effect of coupling agent type on the self-cleaning and anti-reflective behaviour of advance nanocoating for PV panels application
Taha Tareq Mohammed, Hadia Kadhim Judran, et al.
Related Content
Effect of bauxite residue on the corrosion resistance of an intumescent paint coated steel plate
AIP Conf. Proc. (November 2018)
Correlation of chemical contents of Sutlegen (Antalya) bauxites and regression analysis
AIP Conf. Proc. (November 2020)
Effectiveness of aquatic microfungi (Curvularia sp.) in reducing iron (Fe) from tailing pond bauxite post-mining Senggarang, Tanjungpinang City, Riau Islands Province
AIP Conf. Proc. (April 2019)
Verification method on determination of chemical oxygen demand for hospital wastewater
AIP Conference Proceedings (December 2022)
Utilization of red mud and bagasse for production of gas absorption materials
AIP Conference Proceedings (April 2018)