Preparation Of Reactors And Adsorption Filter; Nc Configuration - Thermo Scientific EA IsoLink IRMS System Operating Manual

2
Analytical Principles

Preparation of Reactors and Adsorption Filter

Preparation of Reactors and Adsorption Filter

NC Configuration

Table 17
size of the filling materials to be used for a proper preparation of the reactor.
Table 17. Components required for NC Determination
Reference
Right Channel
F2
CC2
Figure 40
Figure 40. Size of Filling Material
Note In some cases, it can be advantageous to use copper oxide instead of chromium oxide.
Reactors filled with copper oxide must be operated at 900°C - 920°C. Check your calibration with
appropriate standards to maintain analytical precision and quality after changing the reactor filling
from chromium oxide to copper oxide.
• Reactors — The reactor is a quartz tube having a conical bottom end. There are two different sizes
available:
−
44 EA IsoLink IRMS System for CNSOH Operating Manual
report the characteristics of the components required for NC determination, and the type and
Component
Reactor
Absorption Filter
Gas chromatographic
Column
shows the size of the filling material.
NC Configuration with EA IsoLink CN/OH
Right Channel Reactor : Quartz Tube
Right
Channel
10 mm
Quartz Wool
50 mm
Chromium Oxide
10 mm
Quartz Wool
100 mm
Copper Reduced
10 mm
Quartz Wool
50 mm
Silvered Cobaltous-Cobaltic Oxide
20 mm
Quartz Wool
ConFlow IV ConFlow IV
IRMS IRMS
or "CF IV" or "CF IV"
quartz glass reactor of 18 mm OD
Characteristic Filling Materials
Material: Quartz
Quartz Wool
Chromium Oxide
Reduced Copper
Silvered Cobaltous-Cobaltic Oxide
Material: Plexiglas
Quartz Wool
Magnesium Perchlorate (Anhydrone)
Material: Stainless
---
Steel
F2 Adsorption Filter: PlexiglasTube
F2
10 mm
Copper Oxide
10 mm
TCD
CC2 Gas Chromatography Column
Quartz Wool
Magnesium Perchlorate
(Anhydrone)
Quartz Wool
Thermo Scientific