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31 P<br />
Respponse<br />
(CPSS)<br />
CWA Analysis in Natural Samples by LC-<strong>ICP</strong>-<strong>MS</strong><br />
Right: Standards<br />
Below: Unspiked and spiked<br />
Apple Juice<br />
Column: Hamilton PRP-X100<br />
Anion Exchange g<br />
31 P<br />
Respo onse (CPS)<br />
35000<br />
30000<br />
25000<br />
20000<br />
15000<br />
30000 2 10000<br />
20000<br />
10000<br />
0<br />
1<br />
3<br />
4<br />
5 6<br />
5000<br />
0 5 10 15 20 25<br />
Time (min)<br />
From Doug Richardson, Univ Cincinnati<br />
Page 29<br />
0<br />
1<br />
2 4<br />
3<br />
7 8<br />
6 9<br />
5<br />
7 8<br />
9<br />
0 5 10 15 20 25<br />
10<br />
Apple Juice<br />
+ Spike (3ppm)<br />
Apple Juice<br />
Time (min)<br />
10<br />
Elution Order<br />
1. MPA<br />
2. H 2PO 4 -<br />
2 4<br />
3. EPA<br />
4. DMHP<br />
5. PPA<br />
6. EMPA<br />
7. IMPA<br />
8. DEHP<br />
9. IPHEP<br />
10. IBHMP<br />
ESAC April 2008
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