column manufacturer Articles

  • Tips to maintain your HPLC & UHPLC systems and columns

    Recently, Ade Kujore (Cecil Instruments), Tracie Brombos (GenTech Scientific) and I were asked by Angelo De Palma, a well-respected writer for Lab Manager magazine, to contribute to an article about maintaining and caring about your laboratory instruments. Here are my tips/best practices for column and HPLC/UHPC/UPLC system maintenance. Maintaining your ...


    By Waters Corporation

  • EHC: Former Pesticide Manufacturing

    ProjectFormer Pesticide ManufacturingConfidential ClientSoutheast USA Summary A pilot study was conducted to determine the applicability of deep in situ DARAMEND® bioremediation* for treatment of soil containing volatile organic compounds (VOCs) and organochlorine pesticides (OCPs). A total of 43,590 lbs of DARAMEND® was injected into four injection points. The ...


  • Lower Detection Limits with Ground-Breaking Column Technology

    Rxi technology unifies outstanding inertness, low bleed, and high reproducibility into a single high performance column line. Take variation out of the equation and get the most consistent results for trace-level analysis with Rxi columns. phases available Rxi-1ms Rxi-1HT Rxi-5ms Rxi-5Sil MS Rxi-5HT Rxi-XLB ...


    By Restek Corporation

  • How ‘Peer Review’ is Important to Manufacturers

    Untitled Document The Federal Office of Management and Budget’s (OMB) office of Information and Regulatory Affairs (OIRA) has issued a proposed guidance that is intended ...


    By Bergeson & Campbell, P.C.

  • Manufacturers face challenges with pharmaceutical impurities

    Pharmaceutical manufacturers may face various challenges when attempting to meet the United States Pharmacopeia (USP) requirements for residual solvents (volatile organic chemicals).Residual solvents in pharmaceuticals are trace level impurities of volatile organic compounds in final products or excipients. In general, residual solvents originate from manufacturing processes related to the ...


  • Influence of the reflux ratio in a distillation column in the unsaturated polyester resins process

    The Mexican chemical industry is facing new standards of ecological protection regulated by SEMARNAP (Department of Social Development) and norms imposed by SE (Department of Energy) that require the industry to adjust their processes to use the minimum amount of energy. In particular, the industries that create polyester resins from glycols generate streams of polluted liquids, which are causing ...


    By Inderscience Publishers

  • Rxi-624Sil MS Exceptionally Inert, Low Bleed Columns for Volatiles Analysis

    - Optimized selectivity for volatiles and polar compounds ensures good separations. - Highly inert columns improve accuracy and allow lower detection limits, even for active compounds. - Most thermally stable 624 column available; low bleed, fully MS compatible. While mid polarity 624 columns are widely used for analyzing polar analytes and volatile organic compounds (VOCs), not all columns ...


    By Restek Corporation

  • Wastewater Quality Improvement in Plastics Manufacture: ICI Olefines

    ICI Olefines is saving $2.4 million per annum on its waste disposal while easily passing stringent new wastewater quality standards at its Port Botany Olefines Plant. The 87% cost reduction was accompanied by a 95% reduction in the petroleum hydrocarbons in the plant’s effluent. The improved performance eliminated the need for a new wastewater treatment plant that would have cost the company $4 ...


  • Tri-NOx Multi-Chem Wet Scrubber. Case Study of Our NOx Scrubber in an Automotive Manufacturing Plant

    Toyota Auto Body of California, Inc. (TABC) manufactures 170,000 truck beds per year at its Long Beach, CA facility. The company also makes catalytic converters, and generates NOx at several points within that process. A Tri-NOx scrubber has controlled those emissions with exceptional efficiency since its installation in 1988 To accommodate increased demand, the plant sought Tri-Mer's assistance ...


    By Tri-Mer Corporation

  • Former textile manufacturing facility DNAPL source zone green ERD Remediation Cannon Knitting Mills, Hamilton, Ontario Canada case study

    Project Highlights ERDENHANCED PRS Pilot Study >99.6% reduction in PCE concentrations in 7-months. ERDENHANCED PRS PILOT STUDY >95% reduction in TCE >81% reduction in cis-DCE ERDENHANCED >93% reduction in PCE molar mass during evaluation period ERDENHANCED program sponsored by City of Hamilton and Ministry of Environment ...

  • 70-min amino acid analysis of physiological samples

    Pickering Laboratories specializes in the manufacturing of cation-exchange columns and eluants for amino acid analysis. Post-column derivatization with Ninhydrin offers unmatched selectivity and reproducibility of the analysis for most challenging matrixes. Pinnacle PCX post-column derivatization system allows analysts to combine eluant gradient capabilities of modern HPLC instruments with column ...


    By Pickering Laboratories, Inc.

  • 30-minute amino acid analysis of hydrolyzed samples

    Pickering Laboratories specializes in the manufacturing of cation-exchange columns and eluants for amino acid analysis. No other tech¬nique has been shown to match the reproducibility and selectivity of ion-exchange analysis with post-column Ninhydrin detection. Nor is there a chromatography technique that provides as much information; the 570/440 nm signal ratio for each amino acid is a ...


    By Pickering Laboratories, Inc.

  • News on Air 2013, Volume 2: Products for Separation

    Supelco® has developed the most extensive line of special purpose columns designed for industry specific applications; including environmental and industrial hygiene. These columns are manufactured to deliver high resolution, great analyte response, low bleed and long column life; allowing analysts to achieve the analytical performance they require. In this issue, you will find easy-to-read ...


    By Sigma-Aldrich Co., LLC

  • New Inventory Update Rule Reporting Heads Our Way

    The U.S. Environmental Protection Agency (EPA) proposed important revisions to the Toxic Substances Control Act (TSCA) Inventory Update Rule (IUR). This column explains why chemical manufacturers and other stakeholders must be aware of the proposal and prepare now for its ...


    By Acta Group

  • The development of cation-exchange chromatography in free amino acids analysis

    Although it was not called a liquid chromatograph, the first such instrument was introduced in late 1959 by Beckman Instruments and was designated the M.S. Amino Acid Analyzer in honour of Moore and Stein. Inject valves had yet to be invented, the buffer switching valves were glass stopcocks and the column temperature was controlled by circulating water baths. Two positive displacement pumps ...


    By Pickering Laboratories, Inc.

  • Determining pesticides in dietary supplements with QuEChERS extraction, cartridge SPE, and GCxGC-TOFMS

    Regulatory requirements are driving the development of new multiresidue pesticide methods for dietary supplements. Minimizing matrix interference is critical for data accuracy. The novel approach employed here combines QuEChERS extraction, cartridge SPE cleanup, and GCxGC-TOFMS analysis, and results in good recoveries across a range of compounds found in these complex matrices. ...


    By Restek Corporation

  • Chromatography Tips

    No.1 Gas Chromatography Tips  Our Founders and engineers of the company had accumulated more than 60 years experience in the research and development of HPLC instrumentation; HPLC column technology; mass spectrometer installation, training and services; chemical and biochemical separation, detection and quantification, Proteomics and cancer biomarker research and ...


    By AcuTech Scientific Inc.

  • Low thermal mass gas chromatography – Analysis at MACH speed

    Gas Chromatography (GC and GC/MS) analysis has been the mainstay for the analysis of regulated organic contaminates in the environmental field. Numerous advancements have occurred in GC instrumentation that include improvements for injectors, detectors, automation, software, and GC column choices. Although many advancements have been made in GC technology, very little has changed for column oven ...


  • Amino acid analysis matrix independent analysis of free amino acids

    Pickering Laboratories specializes in manufacturing of cationexchange columns and eluants for amino acid analysis. No other techniques have been shown to match the reproducibility and sensitivity of this post-column methodology. Advantages of this method, such as absence of matrix interferences, are especially important in analysis of native samples. Pickering provides several options for the ...


    By Pickering Laboratories, Inc.

  • Analysis of Formaldehyde simple and sensitive method for analyzing free formaldehyde

    Formaldehyde is used for disinfections of industrially manufactured products. However, it is detrimental to health and its potential oncogenicity led to the current utilization of a formaldehyde donor for long-term preservation. Such donors are in hydrolytic equilibrium with formaldehyde producing free formaldehyde on exposure to moisture. This method is used to quantify the free formaldehyde ...


    By Pickering Laboratories, Inc.

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