What's the difference between impure and pure?

Impure


Definition:

  • (a.) Not pure; not clean; dirty; foul; filthy; containing something which is unclean or unwholesome; mixed or impregnated extraneous substances; adulterated; as, impure water or air; impure drugs, food, etc.
  • (a.) Defiled by sin or guilt; unholy; unhallowed; -- said of persons or things.
  • (a.) Unchaste; lewd; unclean; obscene; as, impure language or ideas.
  • (a.) Not purified according to the ceremonial law of Moses; unclean.
  • (a.) Not accurate; not idiomatic; as, impure Latin; an impure style.
  • (v. t.) To defile; to pollute.

Example Sentences:

  • (1) Two other impurities are pyrene derivatives but their acyl chains probably are not decanoic acid.
  • (2) No impurities in the technical grade ether influenced the responses.
  • (3) The UV and IR absorption spectra of compounds present in the eluate were compared with those of model compounds that were assumed to exist in the gel as impurities after the polymerization (monomers and oligomers of hydroxyethyl methacrylate, decomposition products of initiators).
  • (4) Chloramphenicol, dinitrophenol, and impurities present in some brands of agar all appear to inhibit the growth-medium-dependent branch of excision-repair.
  • (5) The combined results describe the depth of segregation of DMS blocks in Avcothane, the presence of DMS within the topmost 20 A in Biomer, and similar impurities in the model polymers.
  • (6) An impure sample of PLC inhibited sperm penetration, while a more purified preparation did not.
  • (7) A liquid chromatographic (LC) method was adapted for the determination of epinephrine and related impurities in intravenous and cardiac injections; ultraviolet (UV) and electrochemical detectors (EC) were used in series.
  • (8) The determination of potency or shelf life, impurity limit testing, and study of reaction mechanisms are considered as different aspects of drug stability.
  • (9) Isolated cytochrome c oxidase was fractionated by native-gel electrophoresis in Triton X-100, and a preparation of enzyme almost completely free of the usual impurities was recovered.
  • (10) Although these are worst case calculations, a consistent approach should be reconsidered to limit the additional effective dose equivalent from impurities to e.g.
  • (11) As little as 50 nmol of a protein may be quantified and an impurity peak of molecular weight ca.
  • (12) Not all impurities were found in every lot of drug investigated, and none of the impurities exceeded a concentration of 1% of the meperidine present.
  • (13) Skin impurities and fatty hair associated with acne were side effects in 22.5% of 378 patients during the first evaluation and in 10.8% of 369 patients at the second evaluation.
  • (14) The organic solvent soluble impurities exhibited strong mutagenic activity for TA98 and slight activity for TA100.
  • (15) Following this order the absorbents can be used for purification of human albumin from non-specific impurities taking into account stronger adsorption of albumin or impurities.
  • (16) Trace amounts of an impurity commonly produced in the synthesis of 1,2-distearoyl-3-sn-phosphatidylcholine, 1,3-distearoyl-2-sn-phosphatidylcholine, are found to dramatically reduce the rate of loss of small vesicles at 21 degrees C.
  • (17) It is shown on the basis of calculations of energy sublevels of the hyperfine structure that the effect of the geomagnetic field upon the impurity atoms in the volume of living cells should be considered in relation to the value of geomagnetic field induction pulses delta B.
  • (18) Contamination of cells by impurity atoms that may leach from electrodes was measured by atomic-absorption spectrophotometry and found to be negligible.
  • (19) Results presented here indicate that N-nitroso compound impurities are absent from the majority of the products tested.
  • (20) Eight of the proteins (L9, L11, L13, L21, L22, L35', L37 and L39) had no detectable contamination; the impurities in the others were no greater than 9%.

Pure


Definition:

  • (superl.) Separate from all heterogeneous or extraneous matter; free from mixture or combination; clean; mere; simple; unmixed; as, pure water; pure clay; pure air; pure compassion.
  • (superl.) Free from moral defilement or quilt; hence, innocent; guileless; chaste; -- applied to persons.
  • (superl.) Free from that which harms, vitiates, weakens, or pollutes; genuine; real; perfect; -- applied to things and actions.
  • (superl.) Ritually clean; fitted for holy services.
  • (superl.) Of a single, simple sound or tone; -- said of some vowels and the unaspirated consonants.

Example Sentences:

  • (1) We have confirmed this directly by showing that pure CCK is a potent inhibitor of gastric emptying.
  • (2) Proving that not all teens are content with being part of a purely digital community, Adele Mayr attended a YouTube meet-up in London’s Hyde Park.
  • (3) A cytogenetic and anatomopathologic study of an embryo of 24 mm crown-rump length showing pure triploidy (69,XXY) is reported.
  • (4) Of the three patients with a pure or predominantly endometrioid pattern treated with diethylstilbestrol, two had a marked clinical response.
  • (5) In case of biliary and pancreatic duct obstruction with pure pancreatic reflux, both oedema and inflammatory infiltrations were evident, whereas, in the presence of biliary reflux too, more serious histological features were detected.
  • (6) Pure bile gave 32 correct diagnoses (67%) and 14 diagnoses of inadequate material (29%), which contained few nondegenerated cells and made microscopic diagnosis unreliable.
  • (7) Enzyme activities were measured on nitrocellulose blots by using pure enzyme preparations as well as Triton X-100-solubilized membranes.
  • (8) A critical attitude towards the use of silicone breast implants, when these are used for purely cosmetic purposes, is recommended at present.
  • (9) An attempt to eliminate the age effect by adjusting for age differences in monaural shadowing errors, fluid intelligence, and pure-tone hearing loss did not succeed.
  • (10) Of the two major forms of cytotactin (220 and 200 kDa), the larger form predominated during development of the mouse brain and also predominated in mixed neuron-glia cultures but not in pure glial cultures.
  • (11) Embryonal carcinomas were found in 15 tumours, two being of pure type and the remaining 13 a part of mixed tumours.
  • (12) While the precise function of the MIRP is not known, the availability of this protein in pure and biologically relevant quantities will allow further studies to elucidate its pathobiologic function.
  • (13) Differential plating yielded relatively pure populations of chromaffin cells that demonstrated excellent viability if processed within 2 hours after cessation of the gland's circulation.
  • (14) Homogenates of these cells in chloroform-methanol solution showed an identical absorption spectrum with pure bilirubin dissolved in the same solution.
  • (15) An autopsy on the next day revealed pure pulmonary alveolar hemorrhage without leukemic infiltration or inflammation.
  • (16) 0.5 to 1 gram pure Bismuth per day and person leaves the patients naturally by faeces.
  • (17) Moreover, exposure to a pure 60 Hz electric field or to a magnetically-induced electric field of identical strength resulted in similar changes in calcium transport.
  • (18) Pure sarcomas of the esophagus are exceedingly rare.
  • (19) Confirmation of the identity of the clone was provided by a match between the amino acid sequence predicted from the cDNA sequence and the actual amino acid sequence determined for a tryptic peptide fragment of one of the pure glycoproteins.
  • (20) Six were benign, 11 malignant fibrous, and 3 pure malignant histiocytomas.