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Analysis of Polystyrene Oligomers by Semi-micro GPC

JASCO (USA)
25 Jun 2015

Semi-micro GPC analysis has the advantage in cutting cost by reducing the consumption of mobile phase. Columns with smaller particle sizes and reduced column dimensions are ideal for rapid high performance analysis. The RI-4035 refractive index detector with small flow cell volume is optimized for high-speed data acquisition for use in semi-micro scale analysis, using columns with high performance packing material with smaller particles. This report shows polystyrene oligomer analysis, using a GPC column designed for high-performance analysis, resulting in a 30% solvent saving.

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LC-4000 Series Refractive Index Detectors

JASCO (USA)

The Refractive Index detectors include the optical system mounted in a precisely temperature-regulated housing to eliminate the influence of changes in ambient temperature.The RI-4030 and 4035 detectors are fully stable just one hour after powering on. The RI-4030 can be used for both analytical and preparative scales. In preparative mode the maximum flow rate is 120 ml/min. The RI-4035 is a dedicated semi-micro RI detector with a micro-volume flow cell designed for use with semi-micro GPC analysis using GPC columns with a fine pore size. The 100Hz data acquisition rate makes the RI-4035 suitable for RHPLC and UHPLC separations. The LED light source in both detectors has a long life time (over 10,000 hours) for low maintenance operation. Both the RI-4030 and RI-4035 detectors can be fitted with an optional pressure release safety-valve to prevent damage to the flow cell in the event blockage.

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Preparative ChromatographyPreparative chromatography equipment is used for purification purposes, separating and collecting compounds eluted from a mixture which can then be subsequently used for further purposes. This can be done in large quantities or small. Preparative chromatography systems are usually low to medium pressure liquid chromatographs that are semi-automated. Explore a range of preparative columns and fraction collectors. Find the best preparative chromatography equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Shipping / PackagingPackaging is the technology of enclosing or protecting products for distribution, storage, sale, and use and the process and production of packages. Packaging is closely linked to Shipping and the preparing of goods for transport, warehousing, logistics, sale, and end use. Within the pharmaceutical industry packaging and shipping are used for transport, storage and logistics between Contract Research Organizations (CROs), Manufacturing and Clinical Trial companies. Packaging is also critical in the final production of a pharmaceutical product before market. OligonucleotidesOligonucleotides are small nucleic acid polymers, usually less than 20 bases in length. Oligonucleotides can be made via enzymatic cleavage or more commonly by chemical synthesis with polymerases. Their use includes FISH, southern blots, microarrays and as primers in PCR. High fidelity synthesis kits and detection systems are available for easy production and detection, respectively.Food PackagingGel ImagingGel imaging captures high-resolution images of electrophoresis gels to analyze DNA, RNA, and proteins. Essential in molecular biology, this technique helps visualize results for accurate quantification and documentation. Discover top imaging systems and compare user-reviewed options in our directory.Polymeric MaterialsPolymeric materials are widely used in industries ranging from biomedical devices to packaging and electronics. Research into these materials focuses on their properties, including strength, flexibility, and degradation. Advances in polymer science have enabled the development of more sustainable and high-performance materials. Explore the best polymeric material products in our peer-reviewed product directory; compare products, check reviews, and get pricing directly from manufacturers.ChromatographyChromatography is a powerful technique used to separate and analyze components of mixtures based on their chemical properties. It is widely used in fields like biochemistry, pharmaceuticals, and environmental analysis. By exploiting differences in the interaction of substances with a stationary phase and a mobile phase, chromatography enables precise purification and quantification of compounds. Whether you're working with complex biological samples or industrial chemicals, chromatography is essential for obtaining high-quality results. Browse our peer-reviewed product directory to find the best chromatography systems, compare products, read customer reviews, and get pricing directly from manufacturers.PolymersPolymers are large molecules made up of many repeat units. Natural polymers such as DNA and proteins are essential to life, whereas synthetic polymers such as polystyrene and polyethylene are used widely due to their functionality. Typical techniques for analysis include GPC, SEC, DSC, FT-IR and NMR.Solvent ReductionPermeation

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Analysis of Polystyrene Oligomers by Semi-micro GPC