Analytik Jena multi EA 4000 User Manual

Measuring method
multi EA 4000 Version 01.16 43
5 Measuring method
The analyzer multi EA 4000 is used to determine the following parameters as sum parame-
ters.
 TS – Total Sulfur
 TC – Total Carbon
 TCl – Total Chlorine
 TOC – Total Organic Carbon
 TOC – Total Inorganic Carbon
 EC – Elemental Carbon
 TC-EC Carbon detection after pyrolysis
 AOC – Degradable Organic Carbon
In the control and analysis software multiWin the detection of several parameters can be
combined.
5.1 TC/TS analysis
The multi EA 4000 with C/S module is a special system for the simultaneous and individual
detection of total carbon and total sulfur in solid and paste-like samples through high tem-
perature oxidation in the oxygen flow.
A sample aliquot is eight precisely into a combustion boat and transferred completely to the
hot zone of the furnace. There it is dissolved and the sample oxidized in the oxygen flow at
high temperature.
R + O
2
 CO
2
+ H
2
O (1)
R-S + O
2
 SO
2
+ CO
2
+ H
2
O (2)
R carbonic substance
The resulting measuring gas is dried and halides it contains are removed. The CO
2
/SO
2
con-
tent in the carrier gas is analyzed using NDR detectors which are selective for CO
2
and SO
2
.
5.2 TIC analysis
In the TIC analysis the total inorganic carbon is detected in carbonates and hydrogen car-
bonates of solid and powdered samples. Cyanides, cyanates, isocyanates and carbon parti-
cles are not detected.
For the determination of the inorganic carbon (TIC) acid is added directly to an aliquot of the
sample. This dissolves the carbonates/hydrogen carbonates it contains. The CO
2
is purged
and detected. No thermal oxidation takes place.

Analytik Jena multi EA 4000 Specifications

General

Brand	Analytik Jena
Model	multi EA 4000
Category	Measuring Instruments
Language	English