Effects of High Purity Support Gas in Quadrupole-based Glow Discharge Mass Spectrometry

✍ Scribed by R. E. Valiga; D. C. Duckworth; D. H. Smith

• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 697 KB
• Volume: 10
• Category: Article
• ISSN: 0951-4198
• DOI: 10.1002/(sici)1097-0231(199602)10:3<305::aid-rcm468>3.0.co;2-r

✦ Synopsis

The necessity, design, and characterization of an ultra-high purity (>99.999999%, >&nines) discharge gas delivery system for quadrupole-based glow discharge mass spectrometer are described. This system greatly reduces common contaminants arising from residual gases (e.g., CO', Arc', ArN', A d ' , etc.). The utility of the system is shown in the analysis of NIST SRM 685-W high-purity gold. Sub-ppm detection levels are readily achieved and maintained for all metals. Low background levels for some non-metals, including C, N, and 0, are also reported. The ability to quantify such species is shown in the generation of a calibration curve for carbon using NIST steel standards.