Sunpak-A (40 - 250℃)

Sunpak-A consists of highly cross-linked, high performance porous polymer beads developed using our company's original technology. Sunpak-A displays high levels of resolution and quality. Separations can be performed using Sunpak-A for compounds in a wide variety of fields. Sunpak-A can also be used as a support by coating with stationary phases, allowing for analyses of compounds which cannot be separated on diatomaceous earth supports due to adsorption.

Features

1. Analyses of short chain hydrocarbons (C₁-C₃), lower alcohols (C₂-C₇), and carbon dioxide in samples containing water are possible.
2. Superior separations of trace amounts of water in organic solvents are possible.
3. As this product consists of cross-linked porous polymer beads, there are no variations between lots.

Operating Precautions

Column conditioning procedure

1. Flow carrier gas at 40 - 50 ml/min for 20 minutes at room temperature.
2. Increase the temperature from 40 to 250°C at a rate of 2°C/min.
3. Maintain the temperature at 250°C for 20 hours to condition the column.
4. For samples containing water, set the temperature of the injection port to 260 - 280°C.

Sunpak-S (30 - 190℃)

Sunpak-S is designed for analyses of sulfur compounds in short chain hydrocarbons.
1,2,3-TCEP, 5-ring PPE, and β,β'-ODPN columns have been officially designated for analyses of sulfur compounds. However, carbonyl sulfide cannot be separated from methane, ethylene, and ethane on 1,2,3-TCEP and 5-ring PPE columns. In addition, carbonyl sulfide and hydrogen sulfide cannot be separated from methane and ethylene on β,β'-ODPN columns.
Quenching phenomena occur when sulfur compounds and excessive levels of hydrocarbons are eluted at the same time, with the result that correct qualitative analyses of sulfur compounds cannot be achieved. In order to avoid this problem, perfect separations of hydrocarbons from sulfur compounds are required. Sunpak-S makes these separations possible.

Features

1. Carbonyl sulfide and hydrogen sulfide can be separated from methane, ethane, ethylene, propane, and propylene on Sunpak-S, and trace amounts of sulfur compounds can be detected.
2. Methyl mercaptan can be eluted between isobutane and n-butane.

TENAX® TA

TENAX®TA is suitable for analyses of alcohols, glycols, diols, amines, high boiling point compounds, and highly polar compounds. However, it is not suitable for analyses of hydrocarbons.
It is also useful as a trap material designed to collect atmospheric organic compounds such as styrene monomers.

Porapak® (Waters)

CHROMOSORB CENTURY SERIES (Johns-Manville)