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Sunardi Sunardi
Centre of Accelerator Technology and Material Process, National Nuclear Energy Agency, Jl. Babarsari P.O.Box 6101 Yk, Yogyakarta
Chemical Engineering, Chemistry & Bioengineering Chemistry

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THE VALIDITY OF FNAA AND AAS METHOD FOR ANALYSIS OF Cu AND Fe ELEMENTS IN BIOTA SAMPLES Sunardi Sunardi; Samin Samin; C. Supriyanto
Indonesian Journal of Chemistry Vol 9, No 2 (2009)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (280.452 KB) | DOI: 10.22146/ijc.21536

Abstract

The validity test of Fast Neutron Activation Analysis (FNAA) and Atomic Absorption Spectrometry (AAS) method for analysis of Cu and Fe elements in biota samples has been done. The validity test was represented by the validation test, homogenous test, Z-score test, t test and F test for both methods. The respective validity test results for Cu and Fe elements show that the FNAA precision test were 2.28% and 2.96% while the accuracy were 98.07% and 98.55%, and the precision of AAS validation test results were 1.72% and 2.29% and the accuracy were 98.50% and 98.35%. The uncertainty results for Cu and Fe by FNAA were 2.74% and 3.42%, while AAS were 2.98% and 3.73%. The limit of detection  for both methods of Cu and Fe were 1.05 µg/g and 1.35 µg/g, while AAS were 0.05 µg/g  and 0.904 µg/g, and the value of Z-score in the range ≥-2 and ≤+2 for both methods. In this case the precision, accuracy, uncertainty, limit of detection and value Z-score on both methods  are valid or property to be applied for element analysis. After FNAA and AAS methods were validated then were applied for determining of element contents in biota samples. From the homogenous test result was found that the samples of biota is homogeny, while t test shows that there is no significant difference in average concentration, F test of both methods shows that there is no difference in accuracy.
COMPARISON TEST OF FNAA AND AAS METHOD FOR Cu, Cd, Cr, AND Pb ANALYSIS OF CODE RIVER SEDIMENT (INDONESIA) Sunardi Sunardi; C. Supriyanto
Indonesian Journal of Chemistry Vol 8, No 2 (2008)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (142.405 KB) | DOI: 10.22146/ijc.21634

Abstract

Comparison test of Fast Neutron Activation Analysis (FNAA) and Atomic Absorption Spectrometry (AAS) method for analysis of Cu, Cd, Cr, Pb elements in Code river sediment samples has been done. Comparisons of test used Standard Reference materials (SRM) sample, covering the validation test, t test and F test for both method and then these methods were used to analyze the Code river sediment samples. Comparisons test result show that the validity of both method are around 92.69 % to 98.12 % and t test show that there is no significant difference in average concentration, F test of both methods show that there is no difference in accuracy. The analysis  result of Code sediment using FNAA for Cu, Cd, Cr, Pb are (15.41 - 53.92) ppm, (1.82 - 3.66) ppm, (14.72 - 87.28) ppm, (18.23 - 109.31) ppm respectively, while those using AAS method are (13.71 - 51.11) ppm, (1.64 - 3.33) ppm, (12.81 - 86.75) ppm, (15.74 - 105.53) ppm, respectively. Statistic result test using ANOVA method showed that the concentration of Cr are not significantly differences within sampling locations, while those for Cd, Cr, Pb show a significant difference within sampling location
Co-Authors C. Supriyanto Samin Samin