Characteristics of Trace Element Composition of Sibin Bian-Stone Infused Water
详细信息
- 责任者：Xie Xiande (Key Laboratory of Mineralogy and Metallogeny ; Guangzhou Institute of Geochemistry ; Chinese Academy of Sciences ; Guangzhou 510640 ; China) ; Liu Ying
- 刊名：Geochimica
- 出版年：2013
- 卷期：42(1)
- 关键词：药用矿物 ; medicinal minerals ; 微晶灰岩 ; microcrystalline limestone ; 山东 ; Shandong Province
- 页码：p.1-10
- 图表：illus., 4 tables, 8 refs.
- 分类号：2000
- issnNo：ISSN0379-1726
- isbnNo：CN44-1398/P
摘要
The Sibin Bian-stone is a structurally compact micromeritic limestone with 96% of CaCO3.In order to comprehend the quality of Sibin Bian-stone infused water for drinking,we measured trace elements in two type infused waters,one is in pure boiled water and the other is in boiled water with added multi-element standard solution using ICP-AES and ICP-MS techniques,respectively.The results of our study are as follows:(1) The pure boiled infused water does not contain heavy metallic elements that are harmful to human health,such as Cd,Cr,Cu,Pb,Zn,but contains main common elements like Ca,Mg,Sr,Na,K and Si,and their contents increase with increasing of infusing time,but all of them are much lower than the quality indexes of national standards for tap water of China,and the pH value of the infused water stabilizes in the range of 8.1–8.2,appearing weak alkalinity,suitable to people’s taste.(2) In the infused boiled water added by standard solution,the contents of the main common elements increase with increasing infusing time and pH values,but REE,harmful heavy metallic elements,and most metallic micro-elements decrease continuously with increasing infusing time and pH values.(3) Dissolution of CaCO3,precipitation of metallic ion carbonates,and adsorption between metallic irons and CaCO3 surface are three main factors that caused the continuous decreasing of concentrations of most metallic ions in the infused water.(4) Although the Sibin Bian-stone infused water is harmless,nontoxic,suitable to people’s taste,and capable to reduce the content of harmful heavy metallic elements in the water,as well as to supply some of useful elements Ca and K to human health,drinking of Bian-stone infused water is of little differences in comparison with drinking of weak alkaline bottled water.