What's the difference between liquid and pycnometer?

Liquid


Definition:

  • (a.) Flowing freely like water; fluid; not solid.
  • (a.) Being in such a state that the component parts move freely among themselves, but do not tend to separate from each other as the particles of gases and vapors do; neither solid nor aeriform; as, liquid mercury, in distinction from mercury solidified or in a state of vapor.
  • (a.) Flowing or sounding smoothly or without abrupt transitions or harsh tones.
  • (a.) Pronounced without any jar or harshness; smooth; as, l and r are liquid letters.
  • (a.) Fluid and transparent; as, the liquid air.
  • (a.) Clear; definite in terms or amount.
  • (n.) A substance whose parts change their relative position on the slightest pressure, and therefore retain no definite form; any substance in the state of liquidity; a fluid that is not aeriform.
  • (n.) A letter which has a smooth, flowing sound, or which flows smoothly after a mute; as, l and r, in bla, bra. M and n also are called liquids.

Example Sentences:

  • (1) All of the strains examined were motile and hemolytic and produced lipase and liquid gelatin.
  • (2) Previous attempts to purify this enzyme from the liquid endosperm of kernels of Zea mays (sweet corn) were not entirely successful owing to the lability of partially purified preparations during column chromatography.
  • (3) We have investigated a physiological role of endogenous insulin on exocrine pancreatic secretion stimulated by a liquid meal as well as exogenous secretin and cholecystokinin octapeptide (CCK-8) in conscious rats.
  • (4) Glycosyl ceramide concentration was determined by gas-liquid chromatography of the trimethylsilyl ethers of the methyl glycosides.
  • (5) A sensitive, selective and easy to use high-performance liquid chromatographic method for the determination of cicletanide, a new diuretic, in plasma, red blood cells, urine and saliva is described.
  • (6) A conventional liquid chromatograph with a low capacity column and a conductimetric detector is used to analyze aerosols of Cl-, Br-, NO-3 and SO=4 with good results.
  • (7) To further characterize the molecular forms of GnRH in each species, the extracts were injected into a high pressure liquid chromatograph (HPLC).
  • (8) Proliferation of quiescent hematopoietic stem cells, purified by cell sorting and evaluated by spleen colony assay (CFU-S), was investigated by measuring the total cell number and CFU-S content and the DNA histogram at 20 and 48 hours of liquid culture.
  • (9) High pressure liquid chromatography combined with radioimmunoassay showed marked heterogeneity of SPLI and SLI.
  • (10) After precipitation of plasma proteins by addition of methanol the samples are injected directly into the liquid chromatographic system.
  • (11) (2) The treated animals ingested less liquid and solid food than controls.
  • (12) A rapid method is described for the purification and analysis of synthetic oligonucleotides, based on reversed-phase high-performance liquid chromatography.
  • (13) Suspensions of isolated insect flight muscle thick filaments were embedded in layers of vitreous ice and visualized in the electron microscope under liquid nitrogen conditions.
  • (14) These analyses were carried out on unfractionated culture fluids and on fractions obtained by fast protein liquid chromatography separation using Superose 6 gels.
  • (15) The penetration coefficient, determined by the surface tension, contact angle and viscosity, is a measure of the ability of a liquid to penetrate into a capillary space, such as interproximal regions, gingival pockets and pores.
  • (16) Between-lot variation exceeded that of within-lot variation in 10 of the 14 liquid antacids for which this variation could be tested.
  • (17) The principle of the liquid and solid two-phase radioimmunoassay and its application to measuring the concentrations of triiodothyronine and thyroxine of human serum in a single sample at the same time are described in this paper.
  • (18) The rats were then sacrificed at either one or four hours after the injections and their brains analyzed for monoamine and metabolite content using High Performance Liquid Chromatography with Electrochemical Detection.
  • (19) It was like watching somebody pouring a blue liquid into a glass, it just began filling up.
  • (20) [8(-14)C]Inosine monophosphate formed was separated by high-voltage electrophoresis and radioactivity was measured by liquid-scintillation counting.

Pycnometer


Definition:

  • (n.) A specific gravity bottle; a standard flask for measuring and comparing the densities of liquids.

Example Sentences:

  • (1) The weight of each tissue was measured on a laboratory scale and the volume by placing the tissue in a pycnometer filled with water.
  • (2) It uses a 2-ml glass pycnometer filled with distilled water to determine a tissue sample's displacement volume.
  • (3) Our results indicate that PYC SG values are highly correlated with the glass SG standards (slope = 1.0107, r = 0.9955, p less than 0.001), and highly correlated with DG when approximately 0.120 ml tissue samples are used in the pycnometer.
  • (4) The correlation between measurements performed with this device and those performed with pycnometers is excellent.
  • (5) We observed that the specific gravity values obtained using pycnometry were highly correlated with the specific gravity standards (slope = 1.0107, r = 0.996) and with the density gradient column when tissue volumes larger than 0.120 ml were used with the pycnometer (slope = 1.0707, r = 0.9826).
  • (6) This method utilizes a 2ml glass pycnometer filled with distilled H2O to determine the displacement volume of a tissue sample and an equation to compute SG from the sample's weight and the pycnometer's weight before and after adding the sample.

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