Oxygen Nitrogen Hydrogen Analyzer Analytical Process Analysis: Experimental Procedures

In modern industry, accurate analysis of the oxygen, nitrogen and hydrogen content of materials is essential to ensure product quality, the development of new materials and quality control. Oxygen Nitrogen Hydrogen Analyzer, as an efficient and accurate analytical tool, is widely used in various fields. In this article, we will analyse the process of Oxygen Nitrogen and Hydrogen Analyzer in detail, including the experimental steps and data interpretation.

Experimental Procedures

Sample Preparation: Firstly, the sample to be tested needs to be prepared. The sample can be a variety of inorganic materials, including metals, ceramics, etc. Depending on the type of sample, it may be necessary to place the sample in a nickel basket or capsule, or directly into the sample port.

Sample Weighing: The sample is weighed accurately using a balance. The weight of the sample will have a direct effect on the final analytical result, so it is important that the weighing process is as accurate as possible.

Adding Fluxes (optional): For some samples it may be necessary to add fluxes such as tin or nickel. These fluxes are usually placed in an empty crucible and the graphite crucible is placed over the lower electrode.

Analysis Process

Sample Placement: The sample is placed into the sample port.

Flushing: The sample is flushed using a carrier gas to prevent the atmosphere (containing oxygen and nitrogen) from entering the furnace system.

Degassing: the graphite crucible is degassed in a pulsed furnace to minimize self-contained contamination.

Melting: The sample is melted and oxygen reacts with carbon to form carbon monoxide, while nitrogen and hydrogen are released as monomers.

Gas treatment: The gas passes through a dust filter and then into a copper oxide catalytic furnace where carbon monoxide is oxidized to carbon dioxide. Nitrogen is detected by means of a thermal conductivity detection cell, while hydrogen is determined by means of the reagent.

Data collection: Throughout the analysis process, the IR cell output signal and instrument parameters are displayed in real time and saved in a database together with the measurement results. Measurement results and setup parameters can also be exported at any time.

Maintenance: The Oxygen Nitrogen and Hydrogen Analyzer requires a small amount of maintenance, including cleaning and replacing the dust filters and reagent tubes that are hidden behind the door. These operations are simple and require no specialized skills.