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Part 4 of this series looks at different types of funnels for vacuum filtration – e.g. Buchner and Hartley funnels. Read on to see how to choose the right funnel and achieve the perfect seal. Funnels for Vacuum...

Part 3 of this series describes various filter paper cone folding techniques. Read on to see the options for getting a good seal over your conical funnel. Folding method Comments Quadrant folded Fold the paper into...