𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Liquid gas techniques for GC trace analysis

✍ Scribed by Dünges, Wolfgang ;Fooken, Cornelia ;Wagner, Heinz

Publisher
John Wiley and Sons
Year
1990
Tongue
English
Weight
509 KB
Volume
13
Category
Article
ISSN
0935-6304

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Liquid gases (LG), i.e. low boiling compounds with vapor pressures below 5 bar at room temperature, are introduced as solvents for trace analyses. A system for preparin, diluting and handling LG solutions safely and conveniently in 5 to 500 μl amounts was developed as well as a syringe for direct injection of μl‐LG samples into capillary GC. Even technical grade LG are of high purity. GC/FID of LG solutions (starting at −60°C) allows the separation of volatile traces from the solvent peak: e.g., dichloromethane can be measured in the picogram range.

📜 SIMILAR VOLUMES

On-line liquid backflush—a new technique
On-line liquid backflush—a new technique for GC analysis of samples containing nonvolatile material
✍ Hagman, Gunnar ;Roeraade, Johan 📂 Article 📅 1993 🏛 John Wiley and Sons 🌐 English ⚖ 446 KB

## Abstract Deteriorated performance in capillary GC is often caused by the deposition of nonvolatile components in capillary GC inlets. In many cases this is a limiting factor in trace analysis of complex samples. Volatile solutes of the sample interact with the high boiling material, which leads