(n.) The condition or quality of being impure in any sense; defilement; foulness; adulteration.
(n.) That which is, or which renders anything, impure; foul matter, action, language, etc.; a foreign ingredient.
(n.) Want of ceremonial purity; defilement.
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%.
Purity
Definition:
(n.) The condition of being pure.
(n.) freedom from foreign admixture or deleterious matter; as, the purity of water, of wine, of drugs, of metals.
(n.) Cleanness; freedom from foulness or dirt.
(n.) Freedom from guilt or the defilement of sin; innocence; chastity; as, purity of heart or of life.
(n.) Freedom from any sinister or improper motives or views.
(n.) Freedom from foreign idioms, or from barbarous or improper words or phrases; as, purity of style.
Example Sentences:
(1) Fluorination with [18F]acetylhypofluorite yields 6-[18F]fluoro-L-dopa with 95% radiochemical purity; fluorination of the same substrate with [18F]F2 yields a mixture of all three structural isomers in a ratio of 70:16:14 for 6-, 5-, and 2-fluoro compounds.
(2) We have compared two new methods (a solvent extraction technique and a method involving a disposable, pre-packed reverse phase chromatography cartridge) with the standard method for determining the radiochemical purity of 99Tcm-HMPAO.
(3) The purity and configuration of each isomer of the free acid and N-chloroacetylated derivative were ascertained by: (a) paper chromatography in five solvent systems, (b) elemental analysis, (c) Van Slyke nitrous acid determination of alpha-carbonyl carbon, and (d) Van Slyke ninhydrin determination of alpha-carbonyl carbon, and (e) optical rotation.
(4) The observed purity under the selected conditions ranges from 80%-99% and is in accordance with the estimates of the purities made on the basis of the simultaneously recorded pulse shapes.
(5) When PMC purified to greater than 99% purity were cultured in methylcellulose with IL-3 and IL-4, approximately 25% of the PMC formed colonies, all of which contained both berberine sulfate-positive and berberine sulfate-negative mast cells.
(6) The Nazi party’s office of racial purity claimed that the Jewish character was essentially drug-dependent.
(7) It is suggested that more attention be paid to the 'purity' of scales if meaningful interpretation is to be made in treatment assessment.
(8) Based on the ratio of plasma membrane marker enzyme activity determined in the nuclear preparation, the purity of the isolated nuclei was ascertained.
(9) In contrast to high-purity commercial concentrates, fibronectin was considerably concentrated.
(10) The curiously double nature of the virgin in this tale, her purity versus her duplicity, seems unquestionably related to the infantile split mother, as elucidated by Klein--a connection explored in an earlier paper.
(11) Using 14C-labelled nitrous bases as starting substrates, labelled nucleosides and nucleotides can be obtained with the 75-80% yield that have radioactive purity of 95-99%.
(12) Purity was controlled by disc electrophoresis on polyacrylamide e gels at pH 4.3 and by two dimensional immunoelectrophoresis, respectively.
(13) The enzyme obtained by this procedure has both the biochemical and the spectral properties of EPO and shows a reasonable degree of purity, as judged by its rz value.
(14) Intact Golgi apparatus have been isolated with good purity from rat testis by a simplified sucrose gradient technique.
(15) Finally the higher purity degree of monoclonal antibodies in the cell culture supernatant is also a major advantage of serum free media.
(16) Once availed of the fallacy that athletes are role models, there’s a certain purity that feels almost quaint in an era of athlete as brand.
(17) A sensitive and specific analytical method was developed to determine the enantiomeric purity of naproxen.
(18) It imposes a standard of logical reductionism and methodological purity that not only violates the nature of psychoanalytic knowledge, but imposes an invalid standard of verification and scientific confirmation.
(19) Under these conditions, 79--100% of the cells were removed, yielding epithelial fractions of 65--90% purity.
(20) The purity of each sample was assured by measurement of the protein concentration of each sample and comparison of this parameter to known normal values for perilymph, serum, and CSF.