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SHODEX Chromato News June 2021

news | 15 June 2021
Tag: chromatonews shodex

NEW! Technical Article No. 13

GPC/MS Analysis of Polymer Additives

Polymers contain various additives for the additional functionality and stabilization of the product. Analysis of such additives is important for the quality control purposes in the polymer production. Those additives are typically analyzed by liquid chromatography and gas chromatography after pretreating the sample by extraction and concentration. The treatment steps are often complex and time consuming. On the other hand, by using the gel permeation chromatography (GPC), a polymer sample dissolved in an appropriate solvent can directly be analyzed. It separates the additives from polymers, and thus a simple and rapid detection can be expected.

Shodex™ Technical Article No. 8: “Ultra-Rapid Analysis of High Molecular Weight Compounds Using SEC Mode” summarized the ultra-rapid analysis of high molecular weight compounds using Shodex™ GPC HK-400 series columns, which are packed with uniformly controlled 3- or 3.5-µm styrene divinylbenzene copolymers. This article introduces the rapid, highly sensitive, and highly selective applications analyzing various polymer additives using HK-400 series columns with THF eluent and an MS detector.

✓ phenolic antioxidants (Irganox 1010, Irganox 1076)
✓ hindered amine light stabilizer/HALS (ADK STAB LA-68).

Click here to read the full PDF version.

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