We can partially do for some of the components and that too if they are present in significant ratio. In this case, I guess the combination of TGA, DSC, XRD and FTIR profiles may work.

i know the FTIR method is it accurate ? and what i know is DSC is for melting point and oxidation time is there a way to use it for additeves ? Omkar Singh Kushwaha

Dear all, atomic absorption spectroscopy whenever metals are to be quantified is the best techniques. My Regards

https://doi.org/10.1016/j.jhazmat.2006.03.054

https://link.springer.com/article/10.1007/s13201-017-0590-9

There are two methods for quantitative detection of PE additives:

Liquid solvent/polymer extraction methods, which involve dissolution/precipitation, are time consuming which its accuracy is lower than 90% .

Analysis with Supercritical Fluid Extraction (SFE) / Supercritical Fluid Chromatography (SFC) system is assembled to provide efficient extraction and separation of polymer additives with quantitative results.

Dear Omar Al-Qabandi,

I have attached one thesis about quantitative detection of PE additives. I hope it would be useful.

The weight ratio is relied upon, or in some cases the volume fraction is when the densities are known.