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3 - UPLC_Work_Practical_Considerations

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Running U-HPLC: <strong>Practical</strong> <strong>Considerations</strong><br />

Injector design examples<br />

Flow-Through variable injector design<br />

0.040<br />

0.030<br />

0.020<br />

AU<br />

0.010<br />

0.000<br />

-0.010<br />

loop<br />

Alliance 2695 and H-Class <strong>UPLC</strong><br />

Mounting of the loop<br />

MUST BE PROPER!!<br />

5.605.705.805.906.006.106.206.306.40<br />

Minutes<br />

Typical problem with bad peek<br />

connections<br />

First blank 0.1 %<br />

Second blank 0.01 %.<br />

.<br />

ACQUITY fixed loop injector design<br />

(Rheodyne)<br />

Shula Levin, Waters Israel<br />

loop<br />

With proper Peek<br />

connections<br />

First blank

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