What's the difference between adulteration and purification?

Adulteration


Definition:

  • (n.) The act of adulterating; corruption, or debasement (esp. of food or drink) by foreign mixture.
  • (n.) An adulterated state or product.

Example Sentences:

  • (1) The means for detecting adulterated urine samples are offered, and a procedure for the management of urine-testing results is provided.
  • (2) While these results do not rule out effects of DHEA on metabolic rate or lipogenesis, they do indicate that the unpalatability of DHEA-adulterated diets may be a contributing factor in the observed effects on food intake and body weight.
  • (3) The most characteristic examples of nutritive value adulterations are presented: ascorbic and dehydroascorbic acids, other vitamins, derivatives of the insaturated fatty acids oxidation, changes in proteins.
  • (4) This paper reports a study on the application of derivative spectrum to the identification of tinglizi and its adulterants.
  • (5) Gough, as the degenerate black sheep of an English family trying to blackmail an American adulterer, would curl a long lip into a sneering smile, which became a characteristic of this fine actor's style.
  • (6) The effect during hypovolemia was evident when subjects had access to adulterated physiological saline, a solution more responsive to the PEG-induced need state, and quinine group behavior was not easily explained in terms of the tastes of quinine and saline combined together nor in terms of a posttreatment malaise effect.
  • (7) Her own debut album, 12 Stories (released on 22 October), displays the full range of her emotional acuity and wit in dissecting the strung-out, pill-addicted, adulterous heart of small-town America.
  • (8) This is a public health scandal easily on a par to those of the 1980s and 1990s and reminds me of the outrage over food adulteration and contamination in the mid 19th century.
  • (9) The absence of a significant creatinine concentration in a specimen can be used as an indication of direct or indirect adulteration of the urine specimen by dilution or replacement with water.
  • (10) Laboratory rats were exposed to chow adulterated with either 500 or 1000 ppm Aroclor 1254 for 30 days.
  • (11) Another unintentional source of poisoning is its use as an adulterant in heroin for "street" use.
  • (12) It is suggested that the citric: isocitric acid ratio can be used to detect adulterated products.
  • (13) To obtain a definitive identification of the adulterant it was necessary to also examine the electrophoretic mobility of myoglobin in sodium dodecylsulphate gels.
  • (14) We did not clearly establish the mechanism, but this case is unique since adulterants and contaminants were excluded unlike all previously reported patients.
  • (15) Direct toxicity or hypersensitivity to heroin or an adulterant is considered in the pathogenesis of myolysis.
  • (16) The intake of the adulterated fluid was near zero during food deprivation, and when a vegetable and fruit diet was available.
  • (17) All animals reduced their food intake in response to the dietary adulteration, with evidence of a dose-response effect, but this response did not differ as a function of litter size.
  • (18) These multiple mechanisms of action combined with the deleterious effects of often-present adulterants give rise to an unpredictable, variable, and potentially life-threatening cardiovascular response to cocaine administration.
  • (19) In experiment 2, pups were tested with dam's artificially adulterated food.
  • (20) In May 1981 a new disease caused by widespread food poisoning with adulterated rape-seed oil appeared in Spain.

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.