<?xml version="1.0" encoding="iso-8859-1"?>
<rss version="2.0" xmlns:sy="http://purl.org/rss/1.0/modules/syndication/" xmlns:admin="http://webns.net/mvcb/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
<channel>
<title>Signal to noise</title>
<link>http://www.scientistsolutions.com/t22941-signal+to+noise.html</link>
<description>purpus of singal to noise and meaning of drift and noise in hplc Life Science Discussion</description>
<language>en-us</language> 
<managingEditor>sci7feed@sci7.nojunkorherepleasespam.com</managingEditor>
<sy:updatePeriod>hourly</sy:updatePeriod>
<sy:updateFrequency>1</sy:updateFrequency>
<sy:updateBase>2005-05-05T12:00+00:00</sy:updateBase>
<item>
<title>Signal to noise</title>
<link>http://www.scientistsolutions.com/t22941-signal+to+noise.html</link>
<description><![CDATA[Noise is the random variations in the instrrument signal.  Every instrument has some noise that is caused by the components in the instrument.  <br />Drift is a regular change in the signal, usually toward a higher or lower signal value.  The amount of change is more than the noise.<br />The signal-to-noise ratio (S/N) tells us how big a signal is compared to the noise.  When this ratio is larger than some value (usually 3), we have some confidence that what we are observ...]]></description>
<pubDate>Sat, 28 Apr 2012 12:23:06 GMT</pubDate>
</item>
<item>
<title>Signal to noise</title>
<link>http://www.scientistsolutions.com/t22941-signal+to+noise.html</link>
<description><![CDATA[sir can u explain meaning  of drift and  noise, other one is purpus of signal to noise ration in hplc]]></description>
<pubDate>Wed, 25 Apr 2012 09:39:32 GMT</pubDate>
</item>
</channel></rss>
