Routine Direct Pathogen DNA/RNA Extraction with Magnetic Bead Purification
IVD6672 follows a direct extraction workflow. No/low-cell-content samples can proceed into bead-tube lysis, while cell-rich, sputum or tissue-derived inputs may require clarification, DTT liquefaction or debris removal before the processed sample enters magnetic bead purification.
1. Workflow structure
This workflow separates the direct sample lysis / bead-tube disruption stage from the downstream magnetic bead purification path. It is intended as a practical companion to the product manual rather than a replacement for the official protocol. The workflow is best interpreted as a routine direct pathogen DNA/RNA extraction route for no/low-cell-content biological samples.
2. Time interpretation
Protocol times stated in the product manual are retained where applicable. Steps without explicit timing are estimated for an experienced operator, including pipetting, tube transfer, centrifuge or magnetic-rack handling, supernatant / filtrate removal and tube or column repositioning. For short protocol ranges, the timeline uses the midpoint. For long or optional protocol ranges, the displayed standard timeline uses the shortest reasonable path, while the note and total-time range indicate where extended handling may apply. Cumulative time runs continuously from the first step to final elution across all workflow sections.
3. Workflow characteristics
IVD6672 uses a direct magnetic bead purification workflow rather than a host-background depletion or pathogen enrichment route. The sample is disrupted in a bead tube with Proteinase K, clarified when required, and then purified through MagPure particle binding, MW1 / MW2 washing, drying and NFW elution.
4. Practical considerations
The key handling point is choosing the correct front-end conditioning for the sample matrix. Cell-rich samples should be clarified before extraction, sputum requires DTT liquefaction, and tissue samples may require debris removal after the 55°C incubation. In routine no/low-cell samples, avoiding carryover debris into the magnetic binding step is more important than modifying downstream wash steps.