<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta name="Generator" content="Microsoft Exchange Server">
<!-- converted from rtf -->
<style><!-- .EmailQuote { margin-left: 1pt; padding-left: 4pt; border-left: #800000 2px solid; } --></style>
</head>
<body>
<font face="Calibri" size="2"><span style="font-size:11pt;">
<div>Dear All,</div>
<div> </div>
<div>We are proposing to add 2 new instrument categories to L05:</div>
<div> </div>
<div>Preferred term: Ion chromatography analysers</div>
<div>Description: Instruments that use ion chromatography to separate ions and polar molecules based on their affinity to an ion exchanger resin. Sample solutions pass through a pressurized chromatographic column where ions are absorbed by the resin and subsequently
eluted using an ion extraction liquid. The retention time of different species determines the ionic concentrations in the sample. </div>
<div> </div>
<div>Preferred term: Proton transfer reaction mass spectrometers</div>
<div>Description: Instruments that ionise trace gas molecules by proton transfer from protonated water, H3O. Ions of specific mass-to-charge ratios are then quantified in a quadrupole or time-of-flight mass spectrometer.</div>
<div> </div>
<div>Please let me know if you have any comments or issues about these 2 new categories or their definitions. If all is well then I'll add them to L05 on Friday. </div>
<div> </div>
<div>Many thanks</div>
<div> </div>
<div>Gwen</div>
<div> </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>
<div><font color="#1F497D"> </font></div>
<div><font color="#1F497D"> </font></div>
<div> </div>
<div><font face="Times New Roman" size="3"><span style="font-size:12pt;"><u> ________________________________ </u></span></font></div>
<div><font face="Times New Roman" size="3"><span style="font-size:12pt;">This message (and any attachments) is for the recipient only. NERC is subject to the Freedom of Information Act 2000 and the contents of this email and any reply you make may be disclosed
by NERC unless it is exempt from release under the Act. Any material supplied to NERC may be stored in an electronic records management system. </span></font></div>
<div><font face="Times New Roman" size="3"><span style="font-size:12pt;"><u> ________________________________ </u></span></font></div>
</span></font>
</body>
</html>