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Isobaric tags for relative and absolute quantification, also known as i-TRAQ, is a protein quantification method using isotopes to "label" proteins from different samples, which results in different molecular weight with the same proteins in different samples.

With this method, you can analyze protein quantification between different samples at the same time.

We also provide label-free analysis to quantified the proteins between different samples, like serum, for analysis a deeper peptides information.