Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for determining sulfur isotope in sulfate minerals by using YF-2 barite as standard sample

A YF-2, sulfur isotope technology, applied in the preparation of test samples, sampling, measuring devices, etc., to achieve a wide range of applications

Inactive Publication Date: 2019-03-01
CHINA UNIV OF GEOSCIENCES (WUHAN)
View PDF2 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, currently no suitable natural sulfate mineral standards are available for in situ sulfur isotope analysis

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for determining sulfur isotope in sulfate minerals by using YF-2 barite as standard sample
  • Method for determining sulfur isotope in sulfate minerals by using YF-2 barite as standard sample
  • Method for determining sulfur isotope in sulfate minerals by using YF-2 barite as standard sample

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] In order to make the purpose, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0025] Please refer to figure 1 , the embodiment of the present invention provides a kind of method with YF-2 barite as standard sample determination sulfate mineral sulfur isotope, comprises the following steps:

[0026] Step S1, screen the YF-2 barite sample, grind it to about 200 mesh, and then use the EA-IRMS method to measure the sulfur isotope δ in the YF-2 barite sample 34 S value, the YF-2 barite sample is collected from the Yongfu barite deposit in Guangxi. It is white or colorless large crystal particles, up to 1 cm long, and the texture is relatively brittle.

[0027] The measurement process of EA-IRMS method is:

[0028] Weigh an appropriate amount of YF-2 barite sample and barium sulfate standard sample and place them in small tin capsules...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention provides a method for determining sulfur isotope in sulfate minerals by using YF-2 barite as a standard sample. The method comprises the following steps that a YF-2 barite sample is screened and ground, and a sulfur isotope delta<34>S value in the YF-2 barite sample is measured by an EA-IRMS method; a piece of YF-2 barite sample and a piece of sample of ore to be measured are taken to be manufactured into a YF-2 barite standard sample target sample and a target sample of the ore to be measured; an LA-MC-ICP-MS method is adopted to first measure the YF-2 barite standard sample target sample to obtain the ratio of <34>S / <32>S of the sulfur isotope of a first sample point in the YF-2 barite standard sample target sample, then the target sample of the ore to be measured is measured to obtain the ratio of <34>S / <32>S of the sulfur isotope in the sample of the target sample of the ore to be measured, and then the YF-2 barite standard sample target sample is measured to obtain the ratio of <34>S / <32>S of the sulfur isotope of a second sample point in the YF-2 barite standard sample target sample; and the sulfur isotope delta<34>S value in the ore sample to be measured is calculated and obtained. The method can accurately determine the sulfur isotope in the sulfate minerals, provides a uniform and matrix-matched standard sample for the in-situ determination of the isotopeby the LA-MC-ICP-MS method, and effectively corrects the quality discrimination in the measurement.

Description

technical field [0001] The invention relates to the technical field of barite analysis and determination, in particular to a method for determining sulfur isotopes of sulfate minerals by using YF-2 barite as a standard sample. Background technique [0002] Sulfates are common sulfur-rich minerals, and their sulfur isotopic composition holds potentially valuable and untapped information for our understanding of magmatic, hydrothermal, and sedimentary processes. In recent years, as geological research has become more and more interested in geochemical changes at the microscale of minerals, LA-MC-ICP-MS in situ determination of isotope analysis methods has also been used more and more. This method has been widely used in the aspect of sulfur isotope of sulfide, but there are few studies on the determination of sulfate. One of the main reasons is the lack of relatively uniform and matrix-matched standard samples. Mass discrimination is an important potential source of error in ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01N27/62G01N1/28G01N1/44
CPCG01N1/28G01N1/44G01N27/62G01N2001/2893
Inventor 陆珏陈唯蒋少涌赵葵东皮道会
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com