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Journal of Biomedicine and Biotechnology
Volume 2011 (2011), Article ID 196238, 7 pages
Direct Determination of ECD in ECD Kit: A Solid Sample Quantitation Method for Active Pharmaceutical Ingredient in Drug Product
1Chemical Analysis Division, Institute of Nuclear Energy Research, Taoyuan 32546, Taiwan
2Isotope Application Division, Institute of Nuclear Energy Research, Taoyuan 32546, Taiwan
3Institute of Nuclear Energy Research (INER), Taoyuan 32546, Taiwan
Received 31 December 2010; Revised 25 February 2011; Accepted 11 March 2011
Academic Editor: David J. Yang
Copyright © 2011 Ming-Yu Chao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Table S1: Matrix effect on the determination of coal samples. The average peak area of Kit blanks was ten times higher than that of tin blanks. However, no significant matrix effect on the determination of sulfur in coal standard without and with the existence of Kit blanks were detected.
Table S2: Inter–day results for the determination of ECD. Different concentration ECD standards in Kit blank using coal for calibration curve were determined. No significant difference of inter–day study coal standard curves was found.
Table S3: Real–sample analytical results. Three batches of real samples were analyzed. The determined (experimental) value of ECD by the proposed method gradually increased from 0.934 mg (batch 1) to 0.984 mg (batch 3).