Chemische Charakterisierung und Spurenanalytik
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Optimization of protein quantification via isotope dilution ICP-MS of a standard reference protein
(2019)
Quantitative proteomics are nowadays one of the key tasks in life sciences. A multitude of methods for protein quantification are established and more techniques are developed each year, but there still is a lack of well characterized and quantified protein standards. We aim to develop an ICP-MS based method to quantify pure proteins reliably and traceable to SI. Here, we employ isotope Dilution analysis for the quantification of proteins of known stoichiometry via their sulfur content.