I have a question for all the experts here
Thread Content
What instruments are used to measure the oxygen content in liquids, such as oxides in liquid metals? Online oxygen analyzers seem to be designed for measuring gaseous media, and the same seems to be true for chromatography; I’m not entirely sure. Could anyone with experience please let me know? handshake Thank you all
Oxides? Then can’t it be measured through chemical analysis?
Generally speaking, it is to measure the oxygen content, but at temperatures of several hundred degrees, it should be oxides by then
They all contain trace amounts of oxygen, and chemical analysis is usually performed on samples. It would be best to refine your question further. For example, liquid metals such as mercury at room temperature are described in too general terms when compared to molten iron at temperatures over a thousand degrees.
Thank you. Indeed, it’s a trace amount of oxygen present; it’s a lead-bismuth alloy liquid at 500°C, and it’s likely that trace dissolved oxygen is being measured. I’ve looked up some information, and it seems that an online electrochemical oxygen sensor can be used for this purpose. As for chemical analysis, bound oxygen can be measured. I’m not sure if what I’m saying is correct – please correct me if I’m wrong :P
I didn’t understand it myself before; it should be measuring dissolved oxygen, not oxides.:)
Does this take into account the lowest oxygen content production method that the product can achieve? It doesn’t seem very necessary to measure this online. I’m not sure of the exact meaning; for reference only.
I’m sorry, I didn’t quite understand what you meant. Our current project involves measuring trace amounts of oxygen; we need to keep the oxygen level low during the process, as too high a level can affect the progress of the experiment
The meaning is clear: the lower the oxygen content, the better. You just need to produce in the least efficient way possible. This sampling process takes some time. Online analysis is difficult to achieve.
Well, online analysis is indeed very difficult, and the operating conditions are complex; since it’s not possible to get information from the manufacturers, we had no choice but to inform the client of their requirements