supernatant
IPA: supɝnˈætʌnt
noun
- The liquid that lies above a sediment or precipitate; supernate
- Material that floats on the surface of a liquid
adjective
- (chiefly of a liquid) Lying or floating above a denser fluid, or above a solid sediment or precipitate (which has been separated by crystallisation, centrifugation etc.).
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Examples of "supernatant" in Sentences
- This final supernatant was the nuclear extract.
- Discard the supernatant using a vacuum aspirator.
- C. produces a precipitate and supernatant solution.
- THere will be two parts the supernatant and the pellet.
- The supernatant was collected and the procedure repeated.
- A supernatant liquid enriched in urokinase is collected .
- The resultant supernatant contained the periplasmic contents.
- After such treatment, the factor is contained in the supernatant.
- The supernatant was discarded and the pellet was washed with PBS.
- Remember, they are probably making an extract of the supernatant, anyway.
- The cell culture supernatant was regularly tested for reverse transcriptase activity.
- Filter cleaning starts with drainage of the supernatant water and dewatering of the top part of the sand bed.
- Missing supernatant drainage system ® long drainage periods for dewatering the filter box will affect the biology in the sand bed
- The crude oil is left to stand for three days and the clarified supernatant oil (35.8 kg) is poured off leaving 11.2 kg of sediment
- Depending on the filter design, flow rates may have to be adjusted accordingly or the layer of supernatant water on the filter will get too high.
- Following 5-10 min at 90°C, the hemoglobin in crude Fraction I was "cooked" and precipitated like mud, and the activity remained soluble in the supernatant.
- The top should be covered by a layer of coarse stones to shade the supernatant water and thus prevent algal growth often experienced in pretreated water exposed to the sun.
- This is also true for the recommended inlet controlled slow sand filters which compensate the progressive headloss development by a gradual increase of the supernatant water level.
- Filter cleaning must be carried out once the supernatant water has reached its maximum permissible level; i.e., when maximum filter resistance of about 1 meter is attained for the designed filtration rate.
- In practice, the stock of supernatant water is drained through the filter at a continuously declining flow rate during the night and in the morning hours, the filter is refilled with pretreated water to reassume normal operation.