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논문 기본 정보

자료유형
학술저널
저자정보
Dasom Kim (Kangwon National University) Sungjin Jung (Kangwon National University) Gunyoung Lee (National Institute of Food and Drug Safety Evaluation) Sang Soon Yun (National Institute of Food and Drug Safety Evaluation) Ho Soo Lim (National Institute of Food and Drug Safety Evaluation) Hekap Kim (Kangwon National University)
저널정보
한국분석과학회 분석과학 분석과학 제30권 제2호
발행연도
2017.4
수록면
57 - 67 (11page)

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초록· 키워드

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This study was conducted to develop an analytical technique for determination of chlorite and chlorate concentrations in fresh-cut food and dried fish products by an ion chromatography/conductivity detection method using a hydroxide mobile phase. Deionized water was added to homogenized samples, which were then extracted by ultrasound extraction and centrifuged at high speed (8,500 rpm). Subsequently, a Sep-Pak tC18 cartridge was used to purify the supernatant. Chlorite and chlorate ions were separated using 20 mM KOH solution as the mobile phase and Dionex IonPac AS27 column as the stationary phase. Ethylenediamine was used as sample preservative and dibromoacetate was added to adjust for the disparity in extraction efficiencies between the food samples. The method detection limit) for chlorite and chlorate were estimated to be 0.2 mg/kg and 0.1 mg/kg, respectively, and the coefficient of determination (r<SUP>2</SUP>) that denotes the linearity of their calibration curves were correspondingly measured to be 0.9973 and 0.9987. The recovery rate for each ion was 92.1 % and 96.3 %, with relative standard deviations of 7.47 % and 6.18 %, respectively. Although neither chlorite nor chlorate was detected in the food samples, the analytical technique developed in this study may potentially be used in the analysis of disinfected food products.

목차

Abstract
1. Introduction
2. Materials and Methodology
3. Results and Discussion
4. Conclusions
References

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