Quantitative gas chromatographic analysis of boron trichloride, boron and boron nitride

✍ Scribed by Aldo Di Lorenzo

• Publisher: Elsevier Science
• Year: 1973
• Tongue: English
• Weight: 414 KB
• Volume: 76
• Category: Article
• ISSN: 1873-3778
• DOI: 10.1016/s0021-9673(01)97793-3

✦ Synopsis

The quantitative on-line analysis of the gaseuus products of a nitrogen plasma jet, containing trace amounts of chlorine and boron trichloride, has been carried out. The quantitative analysis of the solid products, boron and boron nitride, 1~s also been carried out by irt sitzb reaction with chlorine followed by gas chromatography. The chlorine attacks the boron and the boron nitride in a specially designed reactioninjection system of the gas cliromatograpl~ at 500 o for a I-rnin period, Then, the reaction products are immcdiatcly swept into the column through the gas sampling valve. Dot11 of the analyses are carried out with a 2-m Teflon column containing IO '$, K&l;3 on Teflon 6 at 40". About I %, (v/v) of boron trichloridc vapour is incorporated in the carrier gas so as to prcvcnt irrcversiblc adsorption of the small amount of boron trichloridc that is to be detected.

AND PUTNAW~

determined mistures containing hydrogen chloride ayd lqpron,trichloridc by using a copper column containing mineral oil on Chromosorl~ or Pluorolube on Teflon. Prior to use, the columns were dried 2 12. W. CIJIPLTNSISI, Applicdim No, CC-Dkoo3,