Betekenis van:
reflux condenser

reflux condenser
Zelfstandig naamwoord
    • condenser such that vapor over a boiling liquid is condensed and flows back into the vessel to prevent its contents from boiling dry

    Hyperoniemen


    Voorbeeldzinnen

    1. Fit a reflux condenser to the Erlenmeyer flask.
    2. Cylinder of at least 270 ml with a reflux condenser, suitable for boiling.
    3. Fit the reflux condenser and heat at approximately 75 °C for 30 minutes.
    4. 150 ml saponification flask fitted with a reflux condenser having ground-glass joints
    5. 100 or 250 ml round bottomed flask fitted with a reflux condenser.
    6. Fit a reflux condenser to the Erlenmeyer flask. Boil for exactly 10 minutes.
    7. Cover the beaker with a watch glass or fit the conical flask with a reflux condenser.
    8. 250 ml Erlenmeyer flask with standard ground-glass joint and with reflux condenser.
    9. Fit a reflux condenser to the Erlenmeyer flask and immerse the latter in a boiling water bath.
    10. Fit a reflux condenser to the flask and immerse the latter in a water bath at 50 oC for 30 minutes.
    11. Then add 25 ml potassium hydroxide solution (3.4) through the condenser (4.3) and allow to reflux for a further 25 min. with stirring under a slow stream of nitrogen.
    12. Then add 25 ml potassium hydroxide solution (3.4) through the condenser (4.3) and allow to reflux for a further 25 min., with stirring under a slow stream of nitrogen.
    13. In the case of products with a high lactose content, such as powdered milk serum or skimmed milk powder, proceed as follows after adding 80 ml of ethanol (3.5). Fit a reflux condenser to the flask and immerse the latter in a water bath at 50 oC for 30 minutes.
    14. Add 3 glass beads to the mixture in the flask (prepared in accordance with 5.3.2.1 or 5.3.2.2) and boil with continuous bubbling under reflux for 23 hours. On completion of hydrolysis, wash the condenser down with 5 ml of citrate buffer (3.24).
    15. Pipette 50 ml of the filtrate (corresponds to 2,5 g of the sample) into a 250 ml Erlenmeyer flask, add 2,1 ml of hydrochloric acid (3.1) and shake vigorously. Fit a reflux condenser to the Erlenmeyer flask and immerse the latter in a boiling water bath.