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Label-free quantification
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<p>Label-free quantification is a method in <a href="/facts/Mass_spectrometry/RH5WBHJ2">mass spectrometry</a> that aims to determine the relative amount of <a href="/facts/Protein/Jxmagu3E">proteins</a> in two or more <a href="/facts/Biological/1M1ee3pB">biological</a> samples. Unlike other methods for <a href="/facts/Quantitative_proteomics/qLcGt1fX">protein quantification</a>, label-free quantification does not use a <a href="/facts/Stable_isotope/vgcdxgjA">stable isotope</a> containing compound to chemically bind to and thus label the protein. </p>