Patent · US Active

Quantitative analysis device for trace carbon and quantitative analysis method for trace carbon

US10151718B2 · kind B2 · utility

0Cited by
1References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 23, 2015
Grant dateDec 11, 2018
Priority date
Expiry dateMay 16, 2035

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01J2237/2813
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

The present invention makes it possible to analyze trace carbon in a sample without the effects of contamination. In an electron probe microanalyzer, a liquid nitrogen trap and a plasma or oxygen radical generator are jointly used as a means for suppressing contamination, and two or more carbon detection units for detecting characteristic x-rays of carbon in the sample are provided.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.