Patent · US Expired

Hand-held multiple system gas chromatograph

US6306200A · kind A · utility

30Cited by
11References
19Claims
0Family size

Assignee

Inventor

Key dates

Filing dateNov 17, 1999
Grant dateOct 23, 2001
Priority date—
Expiry dateNov 17, 2019

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N2030/8881
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A multiple parallel hand-held gas chromatograph (GC) system which includes several independent GCs. Each independent GC has its own injector, separation column, detector and oven and the GCs are mounted in a light weight hand-held assembly. Each GC operates independently and simultaneously. Because of different coatings in different separation columns, different retention times for the same gas will be measured. Thus, for a GC system with multiple parallel GCs, the system can measure, in a short period, different retention times and provide a cross-reference in the determination of the measured gas and to become a two-dimensional system for direct field use.

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