Page 100 - Applied Pharmacognosy
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Sample Management
❑ Insoluble substances (e.g. very small particles, precipitates).
How to solve this problem?!!
Filtration Centrifugal Separation
❑ Every sample should be ❑ Samples that are difficult
filtered before injection! to filter are purified by
❑ Use a disposable filter with a centrifugation.
pore diameter of 0.45 µm.
Syringe
Filter Sample filters 99
