Agilent Technologies 7820A Advanced User's Guide

82 Advanced User Guide
5 Detectors
µECD gas flows
µECD linearity
The µECD response factor versus concentration curve is linear
for four orders of magnitude or more (linear dynamic range =
10
4
or higher) for a broad range of compounds. You should still
run a calibration curve on your samples to find the limits of the
linear range for your materials.
µECD detector gas
The µECD operates with either nitrogen or argon/methane as
the makeup and anode gas. Purity is critical; gases must exceed
99.9995% purity.
Because of the high detector sensitivity, carrier and makeup gas
must be dry and oxygen-free. Moisture, chemical, and oxygen
traps in good condition should be installed in carrier and
makeup gas supply lines. Do not use plastic (including PTFE)
tubing, plastic-bodied traps, or O-ring seals.
Column
Vent
63
Ni
Capillary adapter
PS = Pressure Sensor
PSPS
EPC Module
Anode purge
Makeup
Frit Frit
PS
Valve
Frit
Valve
Frit
Valve
Frit

Agilent Technologies 7820A Specifications

General

Brand	Agilent Technologies
Model	7820A
Category	Laboratory Equipment
Language	English