<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I read a very old post from you answering questions about
preventing Alexa 488 from fading. In it you said your samples last longer if
you seal them. How do you seal them? Do you use nail polish? <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thanks very much,<o:p></o:p></span></font></p>