Unlock instant, AI-driven research and patent intelligence for your innovation.

Pretreatment method and device for measuring 14C abundance of organic compound type sample

A technology for testing samples and organic substances, applied in the field of element and isotope testing in chemistry, can solve the problems of shackled C abundance research and application, long testing period, large testing cost, etc., to achieve simple and efficient chemical treatment process and reduced pre-treatment costs. , Guarantee the effect of sample test accuracy

Inactive Publication Date: 2014-05-28
CHINA UNIV OF GEOSCIENCES (WUHAN)
View PDF6 Cites 26 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, for the need to test a large number of 14 In the research of C sample, the current method not only has a long test period, but also requires a large amount of test funds, which is seriously shackles 14 Research and Application of C Abundance

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
  • Pretreatment method and device for measuring 14C abundance of organic compound type sample
  • Pretreatment method and device for measuring 14C abundance of organic compound type sample
  • Pretreatment method and device for measuring 14C abundance of organic compound type sample

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be further described below in conjunction with drawings and embodiments.

[0023] The three ends of the three-way piston A4 in the present embodiment are respectively called the I end of the three-way piston A4, the II end of the three-way piston A4 and the III end of the three-way piston A4; the three ends of the three-way piston B27 are respectively called As the I end of the three-way piston B27, the II end of the three-way piston B27 and the III end of the three-way piston B27; the three ends of the three-way piston C37 are respectively called the I end of the three-way piston C37 and the II end and the III end of the three-way piston C37; the three ends of the three-way piston D46 are respectively called the I end of the three-way piston D46, the II end of the three-way piston D46 and the III end of the three-way piston D46; the four-way piston 24 The 4 ends are respectively called the I end of the four-way piston 24, the II end of the fo...

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

No PUM Login to View More

Abstract

The invention relates to a pretreatment method for measuring 14C abundance of an organic compound type sample. The method includes transferring carbon atoms in the organic compound into CO2 molecules through combustion, reacting CO2 with a NaOH solution to obtain a saturate NaHCO3 solution, heating the saturate NaHCO3 solution to obtain a saturate Na2CO3 solution, and adopting the saturate Na2CO3 solution for 14C abundance tests. The invention also provides a device used for the method. The device mainly comprises an oxygen cylinder, a nitrogen cylinder, a cold trap A, a three-way stopcock A, a combustion chamber, a cold trap B, a stone, a cold trap C, a three-way stopcock B, a conical flask, a cold trap D, a three-way stopcock C, a U-shaped gas sample collector, a three-way stopcock D, a vacuum gauge, a vacuometer, a piston D and a vacuum pump. On the basis of guaranteeing the measuring accuracy, the method largely simplifies the chemical treatment process, increases the time efficiency and reduced the cost.

Description

technical field [0001] The invention relates to a method for testing organic matter samples 14 The pretreatment method and equipment of C abundance are mainly used for the analysis of various organic matter samples in geology and archaeology 14 The pretreatment and testing of C abundance belongs to the field of element and isotope testing in chemistry. Background technique [0002] Determination of carbonaceous matter 14 The abundance of C isotopes for 14 C dating is an extremely important dating method in geology and archaeology. right 14 For the determination of C abundance, liquid scintillation spectrometry has been used for a long time to count, so as to calculate the 14 The relative abundance of C is usually measured by modern percent carbon content (PMC). With the rapid development of mass spectrometry in recent years, accelerator mass spectrometry (AMS) is often used to directly measure 14 C / 12 C, 14 The measurement accuracy and reliability of C are greatly ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28
Inventor 毛绪美王华
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
PatSnap Eureka logo

PatSnap Eureka turns technology decisions into work you can execute. Powered by our Innovation Knowledge Graph, it runs expert workflows across engineering, life sciences, materials and intellectual property. Get your review-ready output in minutes.

X (Twitter)LinkedInYouTubeSubstack

© 2026 PatSnap. All rights reserved. 

Terms of Service

 | 

Privacy policy

 | 

Modern Slavery Act Transparency Statement