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7820 MSD Site Preparation

126 GC, GC/MS, and ALS Site Preparation Guide

filters are designed for use with the GC, GC/MS, ICP- OES, ICP- MS,

LC/MS, and any other analysis instrument using carrier gas. Six filters are

available, including CO2, oxygen, moisture, and organics trap (charcoal).

Filter types

Each Gas Clean Filter type is designed to filter out a specific impurity

that may exist in the gas supply. The following filter types are available:

•Oxygen - Prevents oxidation of the GC column, septum, liner, and glass

wool.

•Moisture - Delivers fast stabilization times for increased GC

productivity, and prevents hydrolization damage to the stationary phase,

column, liner, glass wool, or septum in the GC.

• Process Moisture - Prevents oxidation of GC components and is safe to

use with acetylene in process GC applications.

• Charcoal - Removes organic compounds and ensures correct

performance of FID detectors in the GC.

•GC/MS - Delivers fast stabilization times for increased GC productivity,

removes oxygen, moisture, and hydrocarbons from the carrier gas for

MS applications, and provides ultimate GC column protection.

Table 64 on page 127 shows recommended filter connection diagrams for

common instrument configurations.

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Carrier 58GC Specifiche Pagina 126