In response to inquiries from a number of French-speaking customers, we have translated some of our downloadable methods into French. These versions are now available on our web site methods section. Please don't hesitate, however, to contact us for a paper or electronic version of any of the following methods:

   - RAW03-10F : Radium dans l'eau ;
   - SRW01-13F : Strontium 89, 90 dans l'eau ;
   - NIW01-10F : Nickel 63/59 dans l'eau ;
   - ACW11-01F : Radioactivité Alpha Totale dans l'eau ;
   - VBS01-11F : Guide d'utilisation de la boîte d'aspiration sous vide (VBS) ;

Watch our web site for additional French versions of our methods in the coming months.

Most common radiochemical procedures require our usual 2 mL pre-packed cartridges or columns. Depending on the application and/or the matrix you are working with, this quantity of the resin may not be sufficient and a larger column would be needed. Several customers have requested that we supply these larger sized columns to save them time and to ensure that the columns meet Eichrom's quality standards.

We now supply 5, 8 and 10 mL pre-packed columns and corresponding reservoirs.

Examples of larger column applications:

Analysis of trace amounts of Pu, Am and Np in uranium metal:
5 or 10 mL UTEVA Resin columns are used as guard columns to remove the bulk of U from the sample; afterwards Np, Pu and Am can be separated on standard 2 mL TEVA Resin and TRU Resin cartridges or columns.

Analysis of Sr-90 in soil:
In order to meet the required detection limits for Sr-90 in environmental samples, soil samples of 10g and more may need to be analysed. To overcome the matrix effect caused by the amount of Ca present, several laboratories use 8 mL pre-packed Sr Resin columns (2.8g of resin).

Analysis of radium in water:
In Eichrom's Radium in Water method (RAW03, see inside article), a 10mL cation exchange column is used to pre-concentrate the sample in place of the traditional sulfate precipitation. For your convenience we now provide 10 mL pre-packed cation exchange resin columns.