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Isotopx Attain ISO 9001 Accreditation – LRQ 4006785

Posted on 6th January, 2012

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High precision Nd application note on the downloads page…

Posted on 28th November, 2011

G11111, Neodymium Isotope Ratio Analysis Using The Phoenix TIMS

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Impressive Data from 2011 US Phoenix Installations

Posted on 17th November, 2011

TIMS produces absolute isotope ratio values rather than values normalized to a standard as is usual in gas IRMS. There is however always a small difference from machine to machine which explains why although modern TIMS systems can achieve a measurement precision of  less than 5ppm, accuracy specifications are usually of the order of 25 or 30 ppm. Nevertheless we would expect instruments made in the same factory within a few...

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New Application Note: 87Sr/86Sr of sub 10ng loads of NBS987

Posted on 27th September, 2011

Sub-millimeter variations in Sr isotope ratios across zoned minerals and in fluid inclusions continue to be of interest to geologists. Whilst the use of ion microprobe systems provide the best spatial resolution, TIMS coupled with micro-milling devices provide the best accuracy and precision.  Sample sizes are small – perhaps only a nanograms of Sr –...

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New Application Note – Total evaporation (TE) of 500ng U500 using Phoenix TIMS

Posted on 16th September, 2011

High sensitivity measurements of U are of crucial importance in a number of fields. Whilst atom/ion efficiency of >1% has been achieved for point source methods using carbon, for analyses of larger U loads (~500 ng) using a standard filament assembly with no carbon the typical atom/ion efficiency is in the range 0.005% to 0.01%. To test the ionization efficiency and precision achievable...

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