液液萃取电感耦合等离子体光谱法测定碳酸盐岩中的单质硫

建立了碳酸盐岩样品中单质硫的分析方法,此法以正己烷为萃取剂,在180.7nm和182.0nm波长下用电感耦合等离子体光谱法(ICP-AES)测定国家标准物质GBW(E)07108和碳酸盐岩样品。正己烷萃取碳酸盐岩中单质硫的回收率在90%~110%之间;每个样品测定7次,相对标准偏差(RSD)〈5.0%。结果表明,此法满足实验要求,可用于大批量碳酸盐岩样品中单质硫的测定。...

Full description

Saved in:
Bibliographic details
Volume: 36
Main Author: 全洗强 陶鑫 杜文越 秦愫妮 俞建国
Format: Journal Article
Language: Chinese
Place of publication: 中国地质科学院岩溶地质研究所/国土资源部、广西岩溶动力学重点实验室,广西桂林,541004 2017
published in: Zhongguo yan rong Vol. 36; no. 3; pp. 415 - 418
Data of publication: 2017
ISSN: 1001-4810
Alternate Title: Liquid-Liquid extraction inductively coupled plasma atomic emission spectrometer (ICP-AES) for determination of elemental sulfur in carbonate rock
Classification Codes:
Discipline: Geography
Bibliography: 45-1157/P
QUAN Xiqiang, TAO Xin,DU Wenyue, QIN Suni, YU Jianguo ( Institute of Karst Geology, CAGS/Key Laboratory of Karst Dyna mics, MLR&GZAR,Guilin, Guangxi 541004, China)
Under condition of hypoxia,sulfate sulfur is reduced to sulfide sulfur in the process of carbonate deposition.Part of the sulfide is combined with organic to generate complicated organic sulfur while the majority of sulfide with metal ions to form sulfide precipitation.However,the sulfide precipitation is so unstable that can be converted to a stable pyrite through hydrogen sulfide,iron sulfide polysulfide and ferrous sulfide paths.Under the oxygen-rich condition,the sulfur-oxidizing bacteria will oxidate sulfide into elemental sulfur and the disproportionation of elemental sulfur will lead to the formation of various sulfurs which are stored in carbonate deposition.At present,a variety of methods are available for the measurement of elemental sulfur and its species.Unfortunately,only a few are useful at mg/L levels,which offer the possibil
Subjects:
Online Access: available in Bonn?
Database: 中文科技期刊数据库
中文科技期刊数据库-CALIS站点
中文科技期刊数据库-7.0平台
中文科技期刊数据库-自然科学
中文科技期刊数据库- 镜像站点
Wanfang Data Journals - Hong Kong
WANFANG Data Centre
Wanfang Data Journals
万方数据期刊 - 香港版
China Online Journals (COJ)
China Online Journals (COJ)
Database information Databases - DBIS