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<div><font color="#1F497D">Dear All,</font></div>
<div><font color="#1F497D"> </font></div>
<div><font color="#1F497D">We are planning to add the following 2 new instrument categories to L05. Let me know by end of the week if there are any issues.</font></div>
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<td><font size="2"><span style="font-size:10pt;">PREF TERM</span></font></td>
<td><font size="2"><span style="font-size:10pt;">ALT TERM</span></font></td>
<td><font size="2"><span style="font-size:10pt;">DESCRIPTION</span></font></td>
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<td><font size="2"><span style="font-size:10pt;">Thermal ionisation mass spectrometers</span></font></td>
<td><font size="2"><span style="font-size:10pt;">TIMS</span></font></td>
<td><font size="2"><span style="font-size:10pt;">Instruments that measure isotopic ratios using thermal ionisation. Purified samples are heated to cause ionisation of atoms. Subsequently, ions are focused into a beam by an electromagnet and then separated into
individual beams based on their mass/charge ratio. </span></font></td>
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<td><font size="2"><span style="font-size:10pt;">Isotope ratio mass spectrometers</span></font></td>
<td><font size="2"><span style="font-size:10pt;">IRMS</span></font></td>
<td><font size="2"><span style="font-size:10pt;">Instruments that measure isotopic ratios using an electron ionisation source. Atoms in purified samples are ionised using a beam of electrons under vacuum. Subsequently, ions are focused into a beam by an electromagnet
and then separated into individual beams based on their mass/charge ratio. </span></font></td>
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<div><font size="2"><span style="font-size:10pt;"> </span></font></div>
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<div><font color="#1F497D">Many thanks and best regards,</font></div>
<div><font color="#1F497D"> </font></div>
<div><font color="#1F497D">Gwen.</font></div>
<div><font color="#1F497D"> </font></div>
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<div><font color="#1F497D"> </font></div>
<div><font color="#1F497D">---</font></div>
<div><font color="#1F497D">Dr Gwenaëlle Moncoiffé</font></div>
<div><font color="#1F497D">Marine Data Scientist</font></div>
<div><font color="#1F497D">British Oceanographic Data Centre</font></div>
<div><font color="#1F497D">Natural Environment Research Council</font></div>
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<div><font face="Times New Roman" size="3"><span style="font-size:12pt;"><u> ________________________________ </u></span></font></div>
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