Separation funnel or conical bottomed settling beaker.
Conical glass separation funnel with a content of 250 ml with Teflon or ground glass stopcock at the base of the cone.
At least 5 g (accurate to 0,01 g) of the sample shall be transferred into a separation funnel or conical bottomed settling beaker and treated with at least 50 ml of tetrachloroethylene (4.3.1).
Separation funnel pieces shall be disassembled before cleaning.
Separation funnel pieces and glassware shall be pre-washed manually and then washed in a washing machine.
Extraction using a separating funnel (4.2.3
Combine the three ether extracts in one separating funnel containing 50 ml of water.
Combine the three ether extracts in one separating funnel containing 50 mL of water.
Run the lower acid layer into a 250 ml separating funnel.
Centrifuge for two minutes and decant the ethyl acetate phase through a glass fibre filter (4.6), into a 500 ml separating funnel.
The stirrer is then switched off and the digestion fluid is poured through the sieve into the sedimentation funnel.
The stirrer is then switched off and the digestion fluid is poured through the sieve into the sedimentation funnel.
The stirrer is then switched off and the digestion fluid is poured through the sieve into the sedimentation funnel.
A phase separator module is used to separate the organic phase from the aqueous phase.
Transfer by decantation the saponification solution quantitatively by rinsing with a total volume of 250 ml water to a 1000 ml separating funnel (4.2.3) or to the extraction apparatus (4.8).
Transfer the eluate obtained in (5.4.2) into a 1 litre separating funnel. Rinse the conical flask with 5 to 10 ml methanol (3.2) and combine the washings with the contents of the separating funnel.
Simply take a pipette (or a separating funnel) and remove the top layer piece by piece and collect it in a new container.
The digestion fluid is allowed to stand in the funnel for 30 minutes.
Shake the separating funnel vigorously for two minutes and allow the phases to separate.
Allow the layers to separate and transfer the upper layer to the separating funnel as before.
Shake the separating funnel vigorously for two minutes and allow the phases to separate.
Shake the separating funnel vigorously for two minutes and allow the phases to separate.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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