Home » Products » Analytical Instruments » SGIC 2D SGIC 2D Comprehensive Two-dimensional Liquid Chromatography at High Temperature. Two dimensional separation, for detailed study of chemical composition – molar mass bivariate distribution with the advantages of using IR detector for identification and quantification of copolymers. Request a Quotation SGIC 2D Overview The Two-Dimensional Solvent Gradient Interaction Chromatography (SGIC 2D) instrument performs an analytical fractionation of the polymer according to chemical composition by selective adsorption/desorption on an HPLC column, followed by a second separation according to molar mass on a Gel Permeation Chromatography (GPC) / Size Exclusion Chromatography (SEC). The instrument is fully automated and the whole process is controlled by the virtual instrumentation software. Once the vials with the dry polymer samples are placed in the autosampler’s external tray, the instrument takes care of the vial-filling with solvent, dissolution with gentle shaking, optional in-line filtration, and injection into the HPLC column. Then the solvent gradient program starts, and the resulting fractions are injected towards the GPC/SEC columns. The detection is done by a standard infrared detector at the exit of the GPC/SEC columns, which provides a linear response and outstanding stability, overcoming this way the limitations in detection found in single dimension SGIC due to the varying mobile phase composition. At the end of the analysis, the two-dimensional distribution interrelating molar mass and chemical composition are obtained. This combined information is often required for the comprehensive characterization of complex materials. The SGIC 2D is especially suitable for the analysis of samples of low crystallinity or complex polarity distribution when the classic cross-fractionation technique based on crystallization (TREF/GPC) does not provide the desired separation. Polymer Char’s analytical SGIC 2D instrument is a practical alternative to preparative fractionation methods, which are sometimes tedious and time-consuming. The composition molar mass interdependence is now measured in hours instead of days, with limited solvent consumption and no manual intervention, in an intrinsically safe set-up. The SGIC 2D can also be used as a regular High-temperature GPC/SEC equipment without the need to modify anything in the hardware or additional steps by the user. The smart design and powerful control software allow the instrument to run in either SGIC 2D mode or in a regular GPC mode. SGIC is a technique developed and patented by The Dow Chemical Company and licensed to Polymer Char. SGIC 2D Features Click on each feature to display Two dimensional separation, for detailed study of chemical composition – molar mass bivariate Automated Sample Preparation Sample Care Protocols Advantages of using an IR detector Flexible definition of the 2D analysis method Modular Design Analysis of multiple samples GPC / SEC Mode Available SGIC 2D Detectors The following are the detectors available for SGIC 2D: IR4 The IR4 is the standard Detector integrated by default in all the Polymer Char analytical instruments. IR4 is a dual-wavelength infrared detector, which uses the principle of infrared absorption spectroscopy to measure the concentration and composition in polyolefins. Go to IR4 IR5 The IR5 is a high sensitivity infrared detector designed for measuring concentration and short-chain branching with superb stability. It incorporates interference filters at five different wavelengths and a thermoelectrically cooled MCT detector with high sensitivity (no liquid Nitrogen required). Go to IR5 IR6 The IR6 Detector is the latest IR Detector developed by Polymer Char, with the same performance and sensitivity than IR5 Detector and the additional capability of measuring carbonyls group in the band of 1740 cm-1. We recommend the IR6 Detectors for users willing to analyze polyolefin type EVA, EBA, and others with carbonyls group present in the IR band above. Go to IR6 SGIC 2D Sample Results Click here to view some sample results performed by SGIC 2D. SGIC 2D Software The SGIC 2D Virtual Instrumentation Software controls the whole analytical process combining the first dimension SGIC analysis with continuous injection of fractions to the second dimension GPC analysis. The whole process is automated from the sample preparation to a final cleaning of lines and reconditioning of interaction chromatography columns. Therefore, there is no solvent handling by the operator and when an analysis is finished the instrument is ready to start a new run. Analysis conditions are flexible so they can be specifically adapted to each sample requirements or columns specifications; software can manage all needed SGIC fractions and GPC analysis time. Additionally, parameters related to the analytical process such as solvent gradient time and composition, first and second dimension pumps flow rate, temperature and second dimension analysis time among others can be set from the software analysis conditions screen and saved as a method file. Different method files can be selected for each vial in the analysis run queue and the start of the analysis can be as simple as putting the samples into the vials in the autosampler room temperature tray and pressing the Start button in the software. The results can be reviewed and processed when its analytical process is finished, even though the instrument is running other samples. Molar mass (GPC column) and chemical composition (IR) calibration tools are integrated in the same software package, in order to obtain quantitative data. The SGIC 2D Software includes a powerful calculations package, capable of obtaining directly the 3-dimensional graph to study the interdependence of the Molar Mass and the Chemical Composition Distribution of each sample. In addition to the 3D plot, the first dimension recovered interaction chromatography profile is obtained based on fractions peak areas. Chemical composition information as measured by the IR detector, as well as molar mass average are overlaid so the different peaks in the recovered chromatogram can be identified and the polymer features in microstructure characterized in detail. The analyzed samples can be reviewed at any time thanks to the database installed in the software package and linked to the calculations screens. Raw and processed data can be exported to ASCII format. One of the biggest and most powerful attributes of this software is that it allows the user to change the instrument from an SGIC 2D mode to a high-temperature GPC/SEC mode without having to make any alterations in the hardware. The user doesn’t need to perform any steps other than making the change through the software. To request a demo, please contact us Read more about One Software SGIC 2D FAQs What is the purpose of the SGIC 2D instrument? Does SGIC 2D provide physical fractions? How many samples can be run at a time and how long will they take? How many grams of sample do I need for a SGIC 2D analysis? Which solvents can be used? What kind of sample preparation is required by the user? Do I need to handle solvents? Which is the detector used for concentration in SGIC 2D? Where are the columns located? How do I make the switch between SGIC 2D and GPC/SEC modes? Request More Information about SGIC 2D Thank you for your interest. If you would like to receive more information or want to request a quotation please complete this form. * Required fields I have read and accept the terms and conditions and privacy policy Related Literature & Documents Instruments & Analytical Services Brochure File size: 4MB Download PDF SGIC 2D Datasheet File size: 244 KB Download PDF Application Note: Polyolefin Characterization by High-temperature Adsorption Liquid Chromatography (SGIC and TGIC) Published in The Column Vol. 10, Issue10. June 2014, Pages 20-24 B. Monrabal Read more Related Instruments CFC Cross Fractionation Chromatography An automated and benchtop cross-fractionation instrument to analyze the bivariate distribution in Polyolefins by TREF and GPC. GPC-IR® High-Temperature multi-detector GPC/SEC system. Automated, Reliable and Polyolefin-dedicated TGIC Thermal Gradient Interaction Chromatography For measuring Composition Distribution in Elastomers and Low Crystallinity Polyolefin Copolymers Not ready to purchase an instrument yet? Try our Analytical Services. Click here for more information. Overview Features Detectors Sample Results Software FAQs Contact Related Literature Related Instruments Analytical Services Polymer Characterization, S.A. Valencia Technology Park Gustave Eiffel 8, Paterna E-46980 Valencia, Spain Tel.: +34 96 131 81 20 info@polymerchar.com Follow us on LinkedIn Sign up for our newsletter Go! 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