Carrier gas hot extraction

Expertise:

National and international interlab-tests

To top

Non-metal analysis (C,O,N,S)

Contact:

Dr. Margitta Uhlemann

E-Mail: m.uhlemann(at)ifw-dresden.de

Phone: +49 351 4659 717

O-N analysis


Principle:

Carrier gas hot extraction in inert gas atmosphere.   The determination of oxygen and nitrogen concentrations in solid states is   performed by carrier gas hot extraction in Helium atmosphere. The samples drop   into the electrically heated furnace with graphite crucibles and are fused at   temperatures   up to 2700°C.    Oxygen and nitrogen is released. Oxygen reacts with   carbon forming CO and CO2 which is detected selectively by infrared absorption.   Nitrogen is analyzed by means of thermal conductivity.


Application:

Quantitative analysis of the oxygen and nitrogen content in metals,   alloys, oxides, nitrides, carbides and functional materials

Concentration:

µg/g up to main component

Accuracy:

about 0.5 – 5% relative standard deviation

Instrument:


ON-836 Analyzer / LECO Corporation USA

C-S analysis


Principle:

Carrier gas hot extraction in reactive atmosphere.   Carbon and sulfur in solids are oxidized in oxygen gas at high temperatures in an   induction furnace forming  CO2 and SO2, which is detected  selectively  by infrared absorption. 

Application:

Quantitative determination of the Carbon and Sulfur content in  metals, alloys,   synthesized functional materials e.g. for lithium batteries

Concentration:

µg/g up to main component

Accuracy:

about 0.5 – 5% relative standard deviation


Instrument:


C-S EMIA 820V analyzer / HORIBA Japan

H analysis


Principle:

Carrier gas hot extraction in inert gas atmosphere.   The determination of hydrogen is performed by carrier gas hot extraction in argon   atmosphere. The samples drop into the electrically heated furnace with graphite   crucibles and are heated up or are fused in an electrically heated furnace at   temperatures up to 2500°C. Hydrogen is measured by means of thermal conductivity.

Application:

Quantitative determination of the Hydrogen content in metals, alloys, hydrides,   designed functional materials and inorganic compounds

Concentration:

µg/g up to main component

Accuracy:

about 0.5 – 5% relative standard deviation

Instrument:

EMGA-621W analyzer / HORIBA Japan

To top