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Applications of the MODcol Dynamic Axial Compression Spring Column Technology 10 May 2010: This application note presents the MODcol® Dynamic Axial Compression Spring® Column technology from Grace Davison Discovery Sciences. This technology compensates for voids formed by bed settling, extending column lifetime and improving column performance without an external power source. The highly versatile MODcol® DAC Spring® Columns provide flexible technology for preparative and semi-preparative chromatography. Grace Davison Discovery Sciences
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Mercury and Arsenic Speciation Analysis by IC-ICP/MS 16 Nov 2009: This application article presents an IC-ICP/MS method to determine different organic and inorganic species unambiguously in one single run. SIDMS according to EPA Method 6800 was evaluated for optimizing and validating sample preparation procedures. Metrohm AG
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Trace-Level Aliphatic Amines in Cationic Pharmaceutical Ingredients 17 Sep 2009: This application note describes a method of applying coupled-column matrix elimination to monitor low-molecular-weight aliphatic amines, widely used in the manufacturing of chemicals, pharmaceuticals, polymers, pesticides, adhesives, solvents and more. Metrohm AG
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Mercury and Arsenic Speciation Analysis by IC-ICP/MS in Tuna 05 Aug 2009: This application note demonstrates ion chromatography coupled to an ICP/MS is a powerful tool to determine different organic and inorganic species unambiguously in one single run. Owing to the absence of interconversions during sample preparation, the determination of arsenic species in biological and environmental matrices is straightforward and can be performed by traditional speciation analysis down to the sub-ppb level. Metrohm AG
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Effective HPLC Separation of Catecholamines on Newly Developed HILIC Phase 29 Jul 2009: This application note presents an effective separation of catecholamines on the newly developed NUCLEODUR® HILIC. Hydrophilic Interaction Liquid Chromatography (HILIC) is shown to be an efficient alternative to Reversed Phase or Ion Pair Chromatography, as HILIC phases run with less concentrated, LC-MS compatible buffers. MACHEREY-NAGEL GmbH & Co. KG
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Analysis of Food Samples with Ion Chromatography 27 Jul 2009: Ion chromatography (IC) as an analytical technique has experienced an impressive surge in popularity due to the simplicity and robustness of the method, the improved reliability and the great choice of columns, detectors and applications. For a sample in a homogeneous ionic form, very little sample preparation is required and results can be obtained within a matter of minutes. Metrohm AG
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Acetaldehyde, Benzene, Toluene, Ethylbenzene & Xylenes in CO2 16 Jul 2009: The BevAlert Model 8900 provides direct measurement of Acetaldehyde, Benzene, Toluene, Ethylebenzene, and Xylenes (ABTEX) in Carbon Dioxide. The instrument is utilized by Specialty Gas Manufacturers and the Food and Beverage Industry to monitor trace volatile organic compounds in CO2 used in carbonated beverages. Baseline-MOCON, Inc.
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Rapid Protein Separations Using Pre-Packed 1 mL AcroSep™ Ion Exchange Chromatography Columns 21 May 2009: Biology-based research laboratories of all types frequently need purified proteins that are not readily available and must be custom purified. The challenge for protein purification is time. Good IEX performance at high speed has several potential advantages including shorter run times on automated chromatography systems. So we believe that Pall Life Sciences 1 mL pre-packed AcroSep IEX chromatography columns are a strong addition to the chromatography product choices for separation scientists. Pall Life Sciences Laboratory Products
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Carbohydrate Analysis in Beverages 03 May 2009: To maintain product quality, manufacturers assay their products to determine whether the proper amounts of various sugars are present. This application note demonstrates a method using ion exchange chromatography in combination with pulsed amperometric electrochemical detection (PAD). Due to the improved sensitivity of EC detection, the sample can be diluted, eliminating lengthy sample preparation. ESA - A Dionex Company
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