Betekenis van:
filtrate

Voorbeeldzinnen

1. a aliquot part of the filtrate in ml.
2. The filtrate is ready for determination by HPLC.
3. Wash the residue in cold water until a neutral filtrate is obtained. Check that the filtrate does not contain any oil or fats.
4. Filter on ash-free filter paper and collect the filtrate in a 250 ml volumetric flask.
5. Pipet an aliquot of filtrate into a 50 ml calibrated flask.
6. Place the filtrate in the cooled crucible, evaporate until dry, ash and weigh.
7. If the ammonia content of the sample exceeds 0,6 %, dilute the initial filtrate.
8. Filter through a dry filter and collect the filtrate in a small ground-necked flask.
9. Wash the residue in cold water until a neutral filtrate is obtained.
10. Check that the filtrate does not contain any oil or fats.
11. If the ammonia content of the sample exceeds 0,6 %, dilute the initial filtrate. CONWAY CELL
12. Pipette 2 ml of the sample filtrate into each of two 25 ml graduated flasks, and 2 ml of the blank test filtrate into each of two other 25 ml flasks.
13. Filter the solution through a filter paper and retain the filtrate for the liquid-liquid partition step (5.3).
14. After acidifying the filtrate with hydrochloric acid, clarifying and filtering, the optical rotation is measured as in the first determination.
15. Take a quantity of clear filtrate appropriate for the presumed content of volatile nitrogenous bases (100 ml is usually suitable).