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Analytica 2016
September 28-30, 2016
Volume 7, Issue 5(Suppl)
J Anal Bioanal Tech 2016
ISSN: 2155-9872 JABT, an open access journal
conferenceseries
.com
September 28-30, 2016 Orlando, USA
7
th
International Conference and Exhibition on
Analytical & Bioanalytical Techniques
Kyung Mi Hwang, J Anal Bioanal Tech 2016, 7:5(Suppl)
http://dx.doi.org/10.4172/2155-9872.C1.025Validation of ICP-OES and AAS method for the determination of magnesium in infant and follow-
on formula
Kyung Mi Hwang, Hyeon Suk Ham, Doo Jin Lee, Hwa Jung Lee, Soo Jung Hu, Yoon Jung Kang, Yong Woon Shin, Myung Hee Moon, Jin Hwan Hong
and
Hae
Seong Yoon
National Institute of Food and Drug Safety Evaluation, Korea
T
his study was conducted to establish the standard method for the contents of magnesium in infant and follow-on formula.
Magnesium was extracted from 0.2 g certified reference material (NIST SRM 1849a) with 70% HNO3 and 7 ml by the
MARS5 microwave lab station. Digests were then analyzed with Perkin-Elmer Optima 8300 inductively coupled plasma-optical
emission spectrometer (ICP-OES) and Perkin-Elmer Analyst 700 atomic absorption spectrophotometer (AAS). Performance
parameters were estimated for linearity, limits of detection (LOD) and limits of quantification (LOQ), accuracy and precision.
The linearity of standard solution with correlation coefficient was higher than 0.999 in range of 0.05-1.5 mg/L. LOD were
0.01 mg/L and limits of quantification were 0.03 mg/L. Recovery of CRM were determined as approximately 100%. Currently,
optimized method showed high accuracy (>90%) and precision was 0.2% relative standard deviation (RSD). The method was
found to be suitable for routine quality control monitoring of infant and follow-on formulas.
Biography
Kyung Mi Hwang has completed her PhD from Pusan National University in Korea and Post-doctoral studies from Konkuk University, School of Bioinformatics.
She is a Scientific Officer of Nutrition and Functional Food Research Team, National Institute of Food and Drug Safety Evaluation. She has published more than
10 papers in reputed journals.
sprite11@korea.kr