Comparative study of B content and delta B-11 in the enamel of isolated teeth from brothers in the same family

doi:10.1002/rcm.9171

CORC > 青海盐湖研究所 > 中国科学院青海盐湖研究所 > 盐湖地质与环境实验室

	Comparative study of B content and delta B-11 in the enamel of isolated teeth from brothers in the same family
	Li, Zixia; Miao, Hong Wen; Li, Bin Kai; Lu, Hai
刊名	RAPID COMMUNICATIONS IN MASS SPECTROMETRY
	2021-10-15
卷号	35 期号:19
ISSN号	0951-4198
DOI	10.1002/rcm.9171
英文摘要	Rationale The quantity of boron (B) and its isotopic ratios in tooth can provide information on dietary habits and oral health of individuals. These metrics are gradually being used in stomatology, environmental science and geochemistry. Methods This study measured the B concentration and delta B-11 in the enamel of isolated teeth from brothers in the same family living in high-B-exposure areas at different times using inductively coupled plasma mass spectrometry (ICP-MS) and multicollector ICP-MS. Results The results demonstrate that B content in tooth samples of two brothers is related to the time of shedding. The earlier the time of shedding, the lower is the B content in tooth. The B content increased from 20.5 mu g/g of the central incisor (6-7 years old) of the younger brother to 50.4 mu g/g of the second molar (10-12 years old). And B content for the elder brother increased from 28.7 to 58.3 mu g/g at the same positions. In the same family, the diet and environmental input of B is basically similar, and the B exposure is basically the same every year. The annual growth rate of B for the younger brother in this experiment is about 4.98 mu g/g per year and that for the elder brother is about 4.93 mu g/g per year. The delta B-11 of shed teeth at different times from the same person is basically similar, but different from person to person. The delta B-11 of shed teeth from the elder brother varies from 15.5 parts per thousand to 17.9 parts per thousand and from the younger brother varies from 5.2 parts per thousand to 6.7 parts per thousand. The delta B-11 is quite different for the brothers in the same family who had the same food and environmental intake of B. Conclusions The experimental data confirmed the relationship between the information of B (B content and delta B-11) in shed teeth and B exposure. They provided an experimental basis using modern human teeth to apply B-isotope paleo-environmental significance.
内容类型	期刊论文
源URL	[http://ir.isl.ac.cn/handle/363002/34256]
专题	青海盐湖研究所_盐湖地质与环境实验室
推荐引用方式 GB/T 7714	Li, Zixia,Miao, Hong Wen,Li, Bin Kai,et al. Comparative study of B content and delta B-11 in the enamel of isolated teeth from brothers in the same family[J]. RAPID COMMUNICATIONS IN MASS SPECTROMETRY,2021,35(19).
APA	Li, Zixia,Miao, Hong Wen,Li, Bin Kai,&Lu, Hai.(2021).Comparative study of B content and delta B-11 in the enamel of isolated teeth from brothers in the same family.RAPID COMMUNICATIONS IN MASS SPECTROMETRY,35(19).
MLA	Li, Zixia,et al."Comparative study of B content and delta B-11 in the enamel of isolated teeth from brothers in the same family".RAPID COMMUNICATIONS IN MASS SPECTROMETRY 35.19(2021).