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Ion Exchange Resins Applications

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    Analysis of Methylimidazoles in Caramel Colored Carbonated Beverages

    Caramel colorings are used as additives in a broad range of food and beverage products to impart a desired color, but have no nutritional or preservative function. Recently, the potential hazard to humans of ammonia- and ammonia-sulfite-process caramel colorings was raised, because they contain the by-product 4-methylimidazole, which is a potential carcinogen.1 The methylimidazole compounds are difficult to analyze due to their polar nature and low molecular weight. Traditional reversed phase techniques are...

    By Merck KGaA, Darmstadt, Germany based in Darmstadt, GERMANY.

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    Resin technology solutions for the pharmaceutical industry

    Purolite pharmaceutical resins are used in drug formulations as Active Pharmaceutical Ingredients (APIs) or excipients. They meet the demands of the American (USP), European (Ph.Eur.), British (BP) and Japanese (JP) pharmacopoeias. Drug Master Files are held for each, single, listed pharmaceutical product manufactured in Purolite’s facilities. Pharmaceutical resins used in extraction and purification processes or for the production of water for injectables meet the requirements of both the US Food and Drug...

    By Purolite Corporation based in Bala Cynwyd, PENNSYLVANIA (USA).

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    Resin technology solutions for the metals plating industry

    Ion exchange resins and synthetic adsorbents can be used in the metal plating industry to remove impurities, allowing recycling of the plating liquor. Treatment of effluents removes toxic metals, allowing safe disposal of the waste liquor.

    By Purolite Corporation based in Bala Cynwyd, PENNSYLVANIA (USA).

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    Resin technology solutions for the power industry

    Purolite manufactures ion exchange resin products specific to power industry requirements to keep plants running safely, effectively and efficiently. Both fossil and nuclear power plant operations require exceptional water purity before it enters critical systems. Our ion exchange resins are specifically developed to remove impurities contributing to scale formation and corrosion, and are purified to the highest specification to ensure water and steam circuits meet operating chemical expectations. Our ion...

    By Purolite Corporation based in Bala Cynwyd, PENNSYLVANIA (USA).

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    Resin technology solutions for the potable and groundwater industry

    Purolite is at the forefront in meeting the new challenges of purifying water for potable water use. We continue to develop specialized ion exchange resins and adsorbent solutions focused on reducing waste and operating costs. The wide variety of contaminants needing removal often requires a customized approach.

    By Purolite Corporation based in Bala Cynwyd, PENNSYLVANIA (USA).

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    Resin technology solutions for the semiconductor - electronics sector

    Purolite ion exchange resins for ultrapure water are specially manufactured to meet the precise needs of the electronics industry for wafer and microchip production. These needs require the highest possible water quality (less than 1 ppb Total Organic Carbon (TOC) and greater than 18.2 MΩ·cm resistivity, with minimum rinse times), while eliminating contamination of the high purity circuits when ion exchange resin is first installed.

    By Purolite Corporation based in Bala Cynwyd, PENNSYLVANIA (USA).

  • Analysis of Methylimidazoles in Caramel Colored Carbonated Beverages

    Caramel colorings are used as additives in a broad range of food and beverage products to impart a desired color, but have no nutritional or preservative function. Recently, the potential hazard to humans of ammonia- and ammonia-sulfite-process caramel colorings was raised, because they contain the by-product 4-methylimidazole, which is a potential carcinogen.1 The methylimidazole compounds are difficult to analyze due to their polar nature and low molecular weight. Traditional reversed phase techniques are...

    By MilliporeSigma based in Bellefonte, PENNSYLVANIA (USA).

  • Industrial water Gold and Silver

    Cyanidation is still the most widely used method to leach gold, using sodium or calcium cyanide as lixiviant. An anionic gold-cyanide complex is formed that is extractable by basic resins. Other metals present in the ore, such as silver and base metals ( copper, nickel, cobalt, zinc, iron, etc. ) are also leached in cyanide media. Selective ion exchange resins are designed to preferentially adsorb the mono-valent gold-cyanide species.

    By PuriTech Ltd based in Herentals, BELGIUM.

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