J. Technology and Education, Vol.24, No.2, pp.17-20 (2017)

研究論文

母乳中の微量モリブデンの迅速簡易測定法

 

後反 克典*，土田 絵理子，小泉 貞之

 

福井工業高等専門学校 物質工学科 （〒916-8507 福井県鯖江市下司町）

*gotan@fukui-nct.ac.jp

 

Rapid measurement of trace amounts of molybdenum in mother’s milk

 

Katsunori GOTAN*, Eriko TSUCHIDA, Sadayuki KOIZUMI

 

Department of Chemistry and Biology, National Institute of Technology, Fukui College

(Geshi-cho, Sabae-shi, Fukui 916-8507, Japan)

 

(Received June 22, 2017; Accepted July 24, 2017)

 

Abstract

In recent years, molybdenum, which is involved in redox reactions, such as enzyme reactions, has attracted attention as an essential trace element in vivo. For babies taking nourishment from mother’s milk, it becomes possible to evaluate the nourishment state and disease prevention by estimating the amount of minerals in the milk. However, the normal level of molybdenum in mother’s milk has not been clarified. The purpose of this study was to establish a rapid and simple method for determining the trace amount of molybdenum in mother’s milk by graphite furnace atomic absorption spectrometry. In conclusion, by oxidatively decomposing milk samples in a graphite furnace using HNO₃ + H₂O₂, it is possible to measure the concentration of molybdenum in milk samples directly.

 

Keywords: mother’s milk, breast milk, skim milk, molybdenum, trace element, AAS