What's the difference between distillation and purification?

Distillation


Definition:

  • (n.) The act of falling in drops, or the act of pouring out in drops.
  • (n.) That which falls in drops.
  • (n.) The separation of the volatile parts of a substance from the more fixed; specifically, the operation of driving off gas or vapor from volatile liquids or solids, by heat in a retort or still, and the condensation of the products as far as possible by a cool receiver, alembic, or condenser; rectification; vaporization; condensation; as, the distillation of illuminating gas and coal, of alcohol from sour mash, or of boric acid in steam.
  • (n.) The substance extracted by distilling.

Example Sentences:

  • (1) The target concentrations for the butane:pentane mixtures were 4500 and 1000 parts per million (ppm), while 5200 and 1200 ppm were set for the gasoline distillation fraction.
  • (2) A transient increase in the membrane potential was observed when distilled water was applied to the membrane adapted to an appropriate salt solution, which was similar to the water response observed in taste cells.
  • (3) The distribution of the kations in the hair can be changed by washing with distilled water.
  • (4) Indeed, mainstream economics is a pitifully thin distillation of historical wisdom on the topics that it addresses.
  • (5) Only a drastic osmotic shock in distillated water as a mean to disrupt mitochondrial membrane was found to strongly increase the actual rate of the rotenone-sensitive activity.
  • (6) Aggregated virus was not dispersed by one-step dilution (7,000-fold) in distilled or untreated lake water but was dispersed if phosphate-buffered saline or clarified secondary sewage plant effluent was used as diluent.
  • (7) Sections are brought to water, stained in Delafield's alum hematoxylin for 10 minutes, washed in tap water for 10 minutes, counterstained in 1% Procion brillant orange M-GS for 15 minutes and washed in distilled water for 10 minutes.
  • (8) Surfaces of the specimens made with slurry water were significantly harder than those of specimens made with distilled water.
  • (9) The sensitivity and specificity of cold air, ultrasonically nebulized distilled water mist (USM), and standard methacholine (MCH) challenges were studied in 21 children with asthma (mean age 11.5 years) and 12 normal children (mean age 14.2 years).
  • (10) We find that freeze-drying is the most reliable and easy method for molecules that withstand distilled water; freeze-etching can be successfully applied to transmembrane proteins (even in the presence of detergents or salt); the glycerol-spray technique provides an excellent alternative to the cryotechniques in particular for studies of single linear molecules.
  • (11) The effect of intravenously administered distilled water was examined alone and during alkalization in a patient with gross hematuria associated with the sickle cell trait.
  • (12) As regards method of administration, CMNX from a vial was dissolved in physiological saline or distilled water for injection, and the solution was administered by 3 to 5 minutes one shot intravenous injection (15 cases), or CMNX was diluted with large volume parenteral product and administered by 30 to 60 minutes drip infusion (10 cases).
  • (13) I quoted Cooke because, as he himself suggests, what he wrote is a pure distillation of a widely held view in US political discourse.
  • (14) Added NADH had no effect on O2 consumption at 80 mosM but sharply stimulated it when platelet suspensions were exposed to 60 mosM media by pretreatment with distilled water.
  • (15) Thai rice (25 g) was boiled with 500 ml of distilled water for 30 min.
  • (16) Acidic rinsing resulted in an immediate 90% reduction in exhaled ammonia in all subjects, and a return to 50% of baseline levels occurred within 1 h. Depletion that resulted from tooth brushing or distilled water alone was not significant.
  • (17) No growth of Coccidioides immitis occurred when fluid from infected tissue or arthrospores suspended in distilled water were plated on the surface of Sabouraud medium, solidified with refined agar, and containing 20 mg of polymyxin B per liter.
  • (18) A traction test of bodies prepared from Superpont C + B wal also to assess the range of firmness in relation to the period of storage in distilled water.
  • (19) 0-2-0-4 mM-NaCl show lower rates of net salt loss in distilled water and higher rates of net salt uptake form dilute NaCl solutions than do populations from freshwaters of ca.
  • (20) The vesicles suspended in saline retained 100 kilodalton protein of which amount is correlated with prodigiosin level, but the 100 kDa protein was found in the supernatant when the vesicles were lysed in distilled water.

Purification


Definition:

  • (n.) The act of purifying; the act or operation of separating and removing from anything that which is impure or noxious, or heterogeneous or foreign to it; as, the purification of liquors, or of metals.
  • (n.) The act or operation of cleansing ceremonially, by removing any pollution or defilement.
  • (n.) A cleansing from guilt or the pollution of sin; the extinction of sinful desires, appetites, and inclinations.

Example Sentences:

  • (1) During enzyme purification two nucleases were identified.
  • (2) Change of steps in achieved just by varying the reaction conditions without any product purification.
  • (3) Further purification of ZAB by filtration through Sephadex G-100 gave a preparation (ZAB2) which contained the common antigen as shown by the cross-reactivity of anti-ZAB2 rat serum with seven stains of N. gonorrhoeae.
  • (4) Stable factor-dependent B-cell hybridomas were used to monitor the purification of the growth factor from the supernatant of a clonotypically stimulated mouse helper T-cell clone.
  • (5) After immunoadsorbent purification, the final step in a purification procedure similar to that adopted for colon cancer CEA, two main molecular species were identified: 1) Material identical with colon cancer CEA with respect to molecular size, PCA solubility, ability to bind to Con A, and most important the ability to bind to specific monkey anti-CEA serum.
  • (6) Currently there are no IOC approved definitive tests for these hormones but highly specific immunoassays combined with suitable purification techniques may be sufficient to warrant IOC approval.
  • (7) A rapid method is described for the purification and analysis of synthetic oligonucleotides, based on reversed-phase high-performance liquid chromatography.
  • (8) The influence of exogenous mitogens (RFG, TGF beta 1 and insulin) and autocrine factor (at different step of purification) on the growth of Morris hepatoma 7777 (MH) cells was estimated by both methods.
  • (9) In a previous publication the purification and properties of two protein kinases (KI and KII) from a soluble fraction of bovine corpus luteum and the stimulation of the latter fol.
  • (10) for 48 h followed by Leydig cell isolation and purification resulted in a decrease in the maxima of hCG-induced cAMP accumulation and testosterone production by approximately 70% and approximately 55%, respectively, when compared to cells of control mice.
  • (11) These plasmids allow expression of native or truncated forms of the enzyme and easy purification of the products.
  • (12) The enzyme extracted from strains containing the recombinant plasmid was identical to N. crassa catabolic dehydroquinase by the criteria of heat stability, ammonium sulfate fractionation, immunological crossreactivity, molecular weight, and purification characteristics.
  • (13) Three triacetinases (A, B and C) were shown to undergo reciprocal conversions under storage and during some purification procedures (effect of pH, ionic strength, ion-exchange chromatography, concentration, lyophilization, etc.).
  • (14) Sindbis virus nucleocapsids were isolated from mature virions by a two-step purification method.
  • (15) The major scrapie prion protein, designated PrP 27-30, exhibited both charge and size heterogeneity after purification from infected hamster brains.
  • (16) We have used this procedure successfully during the purification of epidermal glycoproteins.
  • (17) The purification and concentration of these viruses in their monomeric forms is hazardous when conventional "tube" rotors are used since they invariably result in dissociation and aggregation of the virus particles.
  • (18) These methods can be applied to the purification and characterization of the as yet undefined secretory and circulating forms of PTHrP.
  • (19) The possibility that mammalian DNA topoisomerase II is an intracellular target which mediates drug-induced DNA breaks is supported by the following studies using 4'-(9-acridinylamino)methane-sulfon-m-anisidide (m-AMSA): (a) a single m-AMSA-dependent DNA cleavage activity copurified with calf thymus DNA topoisomerase II activity at all chromatographic steps of the enzyme purification; (b) m-AMSA-induced DNA cleavage by this purified activity resulted in the covalent attachment of protein to the 5'-ends of the DNA via a tyrosyl phosphate bond.
  • (20) These experiments may provide the basis for the expanded use of immobilized lectins for purification and characterization of hydrolases and other glycoproteins.