ICP-OES를 이용한 우유의 Selenium 분석

• 발행기관: 한국축산식품학회
• 저자명: 김효중 박종길 신정걸 백영진
• 간행물 정보: 『Food Science of Animal Resources』Korean Journal for Food Science of Animal Resources 제23권 제4호, 356~360쪽, 전체 5쪽
• 주제분류: 농수해양 > 식품과학
• 파일형태: PDF
• 발행일자: 2003.12.31

영문 초록

The purpose of this paper was to determine the quantity of selenium in milk by inductively coupled plasma optical emission spectrometry. The sample was digested in teflon vessel containing nitric-hydrogen peroxide acid mixture. After digestion, the sample in treated with additional hydrochloric acid. Total selenium was reduced with sodium borohydride and concentrated hydrochloric acid in a simplified hydride generation(HG) manifold. The optimum conditions of HG are 2 M for HCI, 1.5% for NaBH₄ 1.2mL/min for sample flow. Recovery rates by the standard addition method were 88.0% at 10 ppb and 92.2% at 10 ppm. The relative standard deviations were 4.8 and 3.2%, respectively. This method showed a good accuracy and precision. And so it was highly suitable for determination of small quantity of selenium in milk.

키워드

selenium ICP milk hydride generation