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Inductively Coupled Plasma Optical Emission Spectrometry를 이용한 조제분유의 9종 무기질 분석법의 유효성 검증
황진봉 ( Jin Bong Hwang ),남궁배 ( Gung Bae Nam ),오미라 ( Mi Ra Oh ),김소영 ( So Young Kim ),심유신 ( You Shin Shim ),김세나 ( Se Na Kim ),최용민 ( Young Min Choi ),남진식 ( Jin Sik Nam ) 한국산업식품공학회 2014 산업 식품공학 Vol.18 No.3
The analytical method for the determination of minerals (sodium, calcium, potassium, phosphorus, magnesium, iron, copper, manganese, and zinc) in both infant and adult nutritional formulas, using inductively coupled plasma optical emission spectrometry, was validated in terms of precision, accuracy, and linearity. Certified reference material 1849a, purchased from national institute of standards & technology, was used for the infant and adult nutritional formula. All calibration curves exhibited strong correlation linearity (r 2=0.9999) within the tested ranges. The recovery values of mineral compounds ranged from 90.35 to 110.63%, and the limit of detection and of quantification was less than 0.1005 mg/kg and 0.3351 mg/kg, respectively. The inter-day precision (n=12) values ranged from 1.19 to 18.19%, and intra-day precision (n=3) values ranged from 0.09 to 4.80%. Therefore, microwave digestion and inductively coupled plasma optical emission spectrometry were useful analytical methods for 9 types of minerals in food. The analytical methods verified in this study may be used to build up a food composition database for national health promotion.