Evaluation of Hydrocarbon-based Materials
by "Air-Less" Gas Chromatography and
Packed Column Separation
INTRODUCTION:
The World of Analytical Chromatography involves the
Separation of the individual components in a Sample, THEN the measurement of
their optical / spectral properties. In the realm of Organic Chemicals, there
are VOLATILE (low boiling points, easily evaporated, like most Solvents)
Compounds and NONVOLATILE (high BP / MP, usually solid materials, like many
drug and plastic chemicals) Compounds. If materials can be VOLATILIZED, or
turned into a GAS, then they can be analyzed by Gas Chromatography.
PURPOSE:
Using the AIR-GC system optimized for the separation of
HYDROCARBON Solvents, and a 6-part mixed Standard of Pentane (C5, bp ~36°C), Hexane (C6, bp ~69°C),
Heptane (C7, bp ~98°C), iso-Octane (i-C8, bp ~100°C), and
Octane (C8, bp ~125°C); the "Mean Boiling Point
Range" of a variety of H-C Solvents can be determined.
.
INSTRUMENTS NEEDED:
Model 310 Air-GC system w/ CCD Detector and internal Air Pump INFO/Buy
IT!
Computer w/ Peak-Simple Software
10 uL Syringe INFO/Buy
IT!
SUPPLIES:
1. Vials of PURE Hydrocarbon Standards
(100% based on 2.5uL injection) Can run individually so you can precisely
"map" their individual retention times
· n-Pentane
· n-Hexane
· n-Heptane
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