Tetraycline and Miconazole were selected for the study because they exhibit unusually high levels of carryover under conventional needle wash procedures. Removal of these compounds to acceptable levels is an indication of the effectiveness of the 719D External Needle Wash under severe conditions.
| Typical Autosampler LC-MS Carryover Performance for Tetracycline | Injected 20 µL of 50ppm Tetracycline Standard followed by 20 µL injections of mobile phase as blank |
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| Typical Carryover Performance of the 719D with External Needle Wash for Tetracycline |
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