[abbas]

Hi Experts;
Good day. I am a new member of this forum. I hope that i improve my knowldge as discuss like yours experts opinions.

I have a problem to know how to convert lubricating oil sample into transparent aquous phase/ media to analyze
metal wears on UV visible spectrophotometer?

Early response highly appriciated.
Regards

[Pradeep]

Why you need an aqueous phase? Can't use acetonitrile or hexane or any other non polar transparent solvent?

[Arkcon]

Hmmm ... tricky.  OK, usually, for analyzing the metal components of used oil, the oil is digested with strong acid to dissolve the metal, and analyzed by ICP, or other more archaic methods.  For example, military applications may have standard practices that use 'arcs and sparks'.  Again, the metal content is analyzed by its own thermally excited fluorescence or optical absolution.   You really want to analyze the metal, not the oil.

[Pradeep]

Yes. Arkon you are correct.

[Arkcon]

Yes. Arkon you are correct.

Yeah, when I remember to spell things properly ... optical absolution, I have been reading the religion posts General Discussion too much, it should be optical absorption.  I have done that twice lately.

[Pradeep]

I know that I am not always considering on spell. May be I am native non English speaker. I am used consider only about the content.