Monitoring & Testing Downloads

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    Fast GC Brochure

    The primary aim of Fast GC is to maintain (compared to conventional GC) sufficient resolving power in a shorter time. Fast GC uses column and instrument improvements in combination with optimized run conditions to provide 3- to 10-times faster analysis times, while still providing acceptable resolution. Fast GC can be accomplished by manipulating a number of the analysis parameters, such as ...

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    Elix - High-Throughput Water Purification System - Brochure

    Laboratories around the world are evolving continually to keep pace with growing research requirements, new ways of sharing scientific information, the trend toward connectivity, and increasingly stringent environmental regulations. Adapting space and equipment to meet these new needs can be challenging for all ...

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    DSD-DNPH Passive Sampling Device: Product Flyer

    High Efficiency Diffusive Sampler for the Determination of Aldehydes and Ketones in Indoor and Ambient Air. Specified in OSHA Method 1007 for Determination of Aldehydes. Fast sampling rates due to radial design. High capacity – up to 7 days (not recommended for STEL). Stable blank data – important for LOQ. Easy extraction relative to badges and other passive samplers. Stable for wind, ...

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    Installation and Maintenance Instructions for 0.53mm ID Fused Silica Capillary Columns

    These instructions cover instrument preparation, column installation, leak checking, gas flow setting procedures, and maintenance requirements for 0.53mm ID capillary columns in packed column (equipped with capillary column conversion hardware) and capillary column GC systems. This information and your instrument’s instruction manual will enable you to properly install and maintain these ...

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    Supel™ Tox FumoniBind Data Sheet

    Supel™ Tox FumoniBind cartridges provide rapid cleanup of whole grains and cereals for the detection of fumonisins (B1 and B2) prior to use in HPLC analysis ...

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    SupelMip Brochure

    MIP Technologies AB, Lund, Sweden, is a world leading company in the development of molecularly imprinted polymers (MIPs). The company is a pioneer in the commercial applications of MIPs, holds important patents, and maintains cutting-edge research activities in the area. The company’s mission is to provide innovative products based on molecularly imprinted polymers that serve ...

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    Solid Phase Extraction Products: Improve Sensitivity and Increase Throughput

    Solid phase extraction is a form of digital (step-wise) chromatography designed to extract, partition and/or adsorb one or more components from a liquid phase (sample) onto stationary phase (sorbent or resin). Over the last twenty years, SPE has become the most powerful technique available for rapid and selective sample preparation (prep) prior to analytical chromatography. SPE extends a ...

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    ATIS (Adsorbent Tube Injector System) Operation Manual

    ATIS™ OPERATION MANUAL Adsorbent Tube Injector System T702019A 1 Introduction The Adsorbent Tube Injector System (ATIS) is a sample preparation device that provides a quick and efficient way to transfer calibration standards or samples onto an adsorbent tube. The ATIS employs the technique of flash vaporization to vaporize the sample in a continuous flow of inert gas. The inert ...

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    Analysis of Isocyanates Using the ASSET™ EZ4-NCO Dry Sampler

    3Order: 800-325-3010 (U.S.) 814-359-3441 (Global) Analysis of Isocyanates Using the ASSET™ EZ4-NCO Dry SamplerJamie Brown, Emily Barrey, Olga Shimelis and Kristen Schultzkristen.schultz@sial.comIntroductionIsocyanates are used as a raw material to produce a number of products such as automotive paints, rigid and spray foam insulation and furniture, to name a few. Personal exposure can occur ...

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    Supel™ Tox Tricho Data Sheet

    Supel Tox TrichoCat. No. 55308-UT712123©2012 Sigma-Aldrich Co.SUPELCOBellefonte, PAThis Data Sheet Contains Important Information About The Product.DescriptionSupel™ Tox Tricho cartridges provide rapid cleanup of grains and complex matrices for the detection of Type A and B Trichothecenes prior to use in HPLC, GC, and other analysis methods. Whereas affinity col-umns and other SPE cartridges ...

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    Determination of Additives in Beverages Using Ascentis® Express Columns

    Beverages, such as sodas and energy drinks, can include a number of polar ingredients, which are easily soluble in the water matrix of the drinks. These ingredients include sweeteners (sugars and sugar substitutes), caffeine, vitamin supplements, amino acids, organic acids, and plant extracts. Because the analytes are already in solution, there is no need for extensive sample preparation. ...

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    Dioxin & PCB Analysis Brochure

    The Supelco Dioxin Prep system provides a highly effi cient means of extracting and isolating dioxins, furans, and PCBs from stack gases, wastewater, soil, food, blood, and milk. The prep system design reduces solvent usage, decreases sample preparation time by 1-2 days, and results in extraction recoveries greater than 85%. The convenient multi-layer silica gel column is key to the extraction ...

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    ASSET EZ4-NCO Dry Sampler for Isocyanates - Brochure

    Isocyanates are used in the production of polyurethane (PUR) materials, one of the most widely used plastics in the world. Workers who are exposed to these compounds are at risk for respiratory disorders, asthma and other health conditions. Particulates form incomplete reactions with the reagent as well as isocyanate monomers and oligomers being measured, which results in prevention of ...

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    ASSET™ - EZ4-NCO - Dry Sampler for Isocyanates Brochure

    ASSET™ EZ4-NCO Dry Sampler for IsocyanatesProviding Ultimate Sensitivity for Vapor Phase and Particulate IsocyanatesIsocyanates are used in the production of polyurethane (PUR) materials, one of the most widely used plastics in the world. Workers who are exposed to these compounds are at risk for respira-tory disorders, asthma and other health risks. Particulates form incomplete reactions with ...

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    Analysis of Pesticides in Beef Kidney

    Reporter 31.1 |6sigma-aldrich.com/foodFood and Beverage AnalysisReduce Matrix Background and Improve Overall Analyte Recovery for the Analysis of Pesticides in Beef KidneyKatherine K. Stenerson and Jennifer Clausjennifer.claus@sial.comThe exposure of farm animals to agricultural pesticides continues to be a major concern among food producers. For example, in the case of organochlorine ...

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    Supel™ Tox AflaZea Data Sheet

    Supel™ Tox AflaZea cartridges provide rapid cleanup of whole grains, feeds, TMR samples, peanuts, peanut products, oils, spices, and aqueous solutions for the detection of aflatoxin and zearalenone to 1 ppb prior to use in HPLC, GC, and other analysis methods. Whereas affinity columns and other SPE cartridges utilize a 3-step bind and elute procedure, the Supel Tox AflaZea cartridge employs ...

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    Sample Collection and Analysis of Carbonyls: Improve Detection of Trace Level Contaminants in Air

    Achieve sensitive and reliable results with air sampling media for a wide range of applications in various configurations for solvent desorption, thermal desorption, passive and whole air sampling from Supelco. Ensure low background for carbonyl sampling with products that are produced to the highest quality standards in a carbonyl controlled manufacturing environment that are complemented by ...

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    Formaldehyde and Acetaldehyde Determination in Air Using Fully Automated On-Line Desorption and Analysis of DNPH Cartridges

    Airborne aldehydes and ketones are collected by passing air through a cartridge containing 2,4-dinitrophenylhydrazine (DNPH). Carbonyl compounds react with the DNPH to form hydrazones, which are immobilized on the cartridge. These compounds can be easily eluted from the cartridge with acetonitrile and analyzed by HPLC with UV detection. Traditionally, this analysis including the workup contains a ...

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    GC Column Selection Guide

    An optimized chromatographic separation begins with the column. The selection of the proper capillary column for any application should be based on four significant factors: sationary pahse, column I.D., film thickness, and column length. The practical effects of these factors on the performance of the column are discussed briefly on this document, in order of importance. Note that this ...

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    Exceptional Recoveries of Planar Pesticides from Spinach and Fresh Oregano - Applications Note

    Recently a “Quick, Easy, Cheap, Effective, Rugged, and Safe” (QuEChERS) cleanup method has been developed with the use of Supel QuE Verde, a sorbent combination containing an improved graphitized carbon black (GCB), Z-Sep+, and primary-secondary amine (PSA). This sorbent combination has been shown to provide improved recovery of planar pesticides over current QuEChERS sorbents while ...

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