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TrisKem International SAS is an independent French medium size enterprise of a capital of 40.000 Euros1. It develops, produces and commercialises chemical products, laboratory consumables and associated accessories for radiation protection and the monitoring of pollutants and radioactivity levels in the environment1. TrisKem International is commercializing its products in more than 40 countries in Europe, Africa, Russia and ex-CIS, China and the Middle-East2.

The registered office of TrisKem International is located in Bruz at the Campus of Ker Lann, in the south of Rennes, the capital of Brittany2.

The production laboratory is accommodated by the Ecole Nationale Supérieure de Chimie de Rennes (ENSCR), on the Campus of Beaulieu and is operational since March 20072,3.

History After running the European branch of Eichrom for about 10 years and being in charge of the technical and administrative development, Dr. Michaela Langer, had the opportunity to buy the resin activity of Eichrom Europe and the right to produce extraction chromatographic resins (‘Eichrom Resins’) in Europe. Therefore she and her associate Céline Vignaud decided to create Eichrom Environment in January 20074.

Eichrom Environment becomes TrisKem International on June 1st 20085 with the aim to continue to provide the same high-level quality and technical support, but also to emphasis the research and development efforts which will be undertaken to respond to new and future needs in radiation protection and environmental monitoring4, 5.

TrisKem International is ISO 9001 certified since July 20075. The certification includes production, sales and trade of laboratory consumables, technical support and R&D.

Products

Triskem Resins are used for: •	the analysis of precious samples (environmental monitoring, radiation protection, bioassay) •	the recuperation of high value elements (production of radio metals  for medical use and recuperation of their respective target materials) •	the high precision determination of isotope ratios (dating/geochronology) •	the recovery of particular elements before effluent release •	quality control of final and intermediary products in numerous industries including radiopharmacy

TrisKems main product line consists of extraction chromatographic resins which allow the separation of radionuclides (e.g. actinides and fission products) and stable elements from various samples and matrices such as environmental, food, medical and bioassay samples as well as waste samples6-13.

A wide choice of different extraction chromatographic resins with strongly varying selectivities are existing due to the availability of extractants with different functionalities

-	Acidic extractants: e.g. HDEHP as used in the LN Resin which is used for the separation of lanthanides6 from various environmental samples for analytical purpose -	Basic extractants: e.g. Aliquat 336® as used in the TEVA Resin which is used for the separation of tetravalent actinides7 like Pu or Th or the separation of Tc8 from various sample types for analytical purpose -	Neutral extractants: e.g. TBP/CMPO as used in the TRU Resin which is used for the separation of actinides like U, Pu, Am, Np and Th for analytical purpose7 -	Crown-ethers: e.g. 18-crown- derivates as used in the SR resin which is used for the determination of radiostrontium in environmental, water or food samples10, 11, Sr/Rb and U-Pb dating12, and the verification of the origin of food products13

By combining several resins complex separation problems might be solved7, 12.

Extraction chromatographic resins have become a standard technology in radiochemistry used by international accredited laboratories and monitoring agencies and also has found entry into various national and international norms14 - 17.

Further to extraction chromatographic resins TrisKem International also commercializes anion and cation exchange resins, specialized chelating ion exchange resins and consumables for chromatography and sample preparation for liquid scintillation counting (LSC) and alpha spectrometry.

Cooperations

TrisKem International is official re-seller for Eichrom Technologies LLT in Europe, Africa, Russia and ex-CIS, China and the Middle-East. It is distributor for Meridian Biotechnologies (liquid scintillation consumables) and Nucfilm GmbH (selective extractive discs for Ra and U determination via alpha spectrometry). It further is commercial agent for Raddecs Pyroliser series (combustion furnaces and consumables for the determination of H-3, C-14, Cl-36 and I-129 in environmental and decommissioning samples).

References 1)	http://www.rennes-atalante.fr/annuaire-entreprise-innovante/fiche-annuaire/triskem-international.html, accessed 22/03/12 2)	 « WTC Rennes Bretagne, une marque qui s’affranchit des frontières ». Ekoscopie, edition special September 2009, CCI Bretagne 3)	« TrisKem International SAS : une implantation réussie ». ENSCR info #1, Avril 2010 4)	« Innovation – Creation de a societe Eichrom Environment ». Lettre économique de Bretagne, 31 janvier 2007 5)	« Eichrom Environment becomes TrisKem International ». RADIOCHEMISTRY IN EUROPE - THE NEWSLETTER of the DIVISION of NUCLEAR and RADIOCHEMISTRY, Issue 42, November 2008 6)	Christian Pin and JoséFrancisco Santos Zalduegui: “Sequential separation of light rare-earth elements, thorium and uranium by miniaturized extraction chromatography: Application to isotopic analyses of silicate rocks”. Analytica Chimica Acta, Volume 339 (1–2), 1997, 79–89 7)	Sherrod L. Maxwell: “Rapid Analysis of Emergency Urine and Water Samples”. Journal of Radioanalytical and Nuclear Chemistry, Vol. 275 (3), 2008, 497–502 8)	Martin McCartney et al.: “Development of a novel method for the determination of 99Tc in environmental samples by ICP-MS”. J. Anal. At. Spectrom., 14(12), 1999, 1849-1852 9)	Zulauf, Alexander et al.: „Characterization of an extraction chromatographic resin for the separation and determination of 36Cl and 129I”. Journal of Radioanalytical and Nuclear Chemistry, 286(2), 2010, 539 - 546 10)	E. Philip Horwitz, Renato Chiarizia, Mark L. Dietz: “ A NOVEL STRONTIUM-SELECTIVE EXTRACTION CHROMATOGRAPHIC RESIN”. Solvent Extraction and Ion Exchange, 10 (2), 1992, 313-336 11)	Nóra Vajda, Chang-Kyu Kim: “ Determination of radiostrontium isotopes: A review of analytical methodology”. Applied Radiation and Isotopes, 68(12), 2010, 2306–2326 12)	Christian Pin et al. : « Precise determination of Rb, Sr, Ba, and Pb in geological materials by isotope dilution and ICP-quadrupole mass spectrometry following selective separation of the analytes”. J. Anal. At. Spectrom., 18, 2003, 135-141 13)	G. Fortunato et al. : “Application of strontium isotope abundance ratios measured by MC-ICP-MS for food authentication”. J. Anal. At. Spectrom., 19, 2004, 227-234 14)	ISO 18589-5:2009: Measurement of radioactivity in the environment -- Soil -- Part 5: Measurement of strontium 90 15)	ISO 18589-4:2009 Measurement of radioactivity in the environment -- Soil -- Part 4: Measurement of plutonium isotopes (plutonium 238 and plutonium 239 + 240) by alpha spectrometry 16)	DOE Methods Compendium: RP800(A) “SEQUENTIAL SEPARATION OF AMERICIUM AND PLUTONIUM BY EXTRACTION CHROMATOGRAPHY”., 1999 17)	ASTM D5811 – 08: Standard Test Method for Strontium-90 in Water, 2008