GPC, also known as Size Exclusion Chromatography (SEC), is the most direct method for determining the molecular weight distribution of a sample. This technique is fundamental in analytical testing as the molecular weight of a material is directly related to its physical properties and industrial grade. During Standardized GPC, sample components are dissolved in a suitable solvent, chromatographically separated based on molecular size, detected using a Refractive Index detector and compared to standards of known molecular weight. The most important aspect of a successful GPC analysis is the achievement of a purely size-based separation. The correct mobile phase and column stationary phase must be chosen to decrease the potential for column-sample interaction and retention. RQM+'s 100% divinylbenzene (DVB) resin is functionalized to reduce the aforementioned chemical interactions through mechanisms such as charge-charge repulsion. Thirty years ago, RQM+ was founded on the characterization technique of GPC and we have continued to expand our capabilities ever since. RQM+ now offers GPC analysis in practically all solvents at room temperature due to our extremely rugged and long-lasting DVB columns.
Trust your GPC analysis to the industry's most dependable and experienced GPC laboratory!
RQM+'s team of PhD chemists have written several white papers on GPC found below.
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