What's the difference between component and impurity?

Component


Definition:

  • (v. t.) Serving, or helping, to form; composing; constituting; constituent.
  • (n.) A constituent part; an ingredient.

Example Sentences:

  • (1) The femoral component, made of Tivanium with titanium mesh attached to it by a new process called diffusion bonding, retains superalloy fatigue strength characteristics.
  • (2) Following in vitro C activation in NHS by delta IgG, the 40 KD C4d component increased markedly.
  • (3) Sequence variation in the gp116 component of cytomegalovirus envelope glycoprotein B was examined in 11 clinical strains and compared with variation in gp55.
  • (4) Results show diet, self-control and parts of insulin-therapy to be problematic treatment components.
  • (5) Family therapists have attempted to convert the acting-out behavioral disorders into an effective state, i.e., make the family aware of their feelings of deprivation by focusing on the aggressive component.
  • (6) The specific limited trypsinolysis of bacteriophage T7 RNA polymerase (T7RP) was performed in the presence of various components of the polymerase reaction and some GTP-analogs--irreversible inhibitors of the enzyme.
  • (7) One of the main components was confirmed to be caffeic acid which had inhibitory effect on renal failure in mice by Ac1-P.
  • (8) This paper has considered the effects and potential application of PFCs, their emulsions and emulsion components for regulating growth and metabolic functions of microbial, animal and plant cells in culture.
  • (9) CRF-ir cells were for the most part concentrated in the medial parvocellular component of PVN.
  • (10) We conclude that the rat somatosympathetic reflex consists of an early excitatory component due to the early activation of RVL-spinal sympathoexcitatory neurons with rapidly conducting axons and a later peak that may arise from the late activation of these same neurons as well as the early activation of RVL vasomotor neurons with more slowly conducting spinal axons.
  • (11) Mixtures of 2 components involving kappa-casein were more readily dephosphorylated than alphas- and beta-casein mixtures.
  • (12) Histone mRNA, labeled with 32P or 3H-methionine during the S phase of partially synchronized HeLa cells, was isolated from the polyribosomes and purified as a "9S" component by sucrose gradient sedimentation.
  • (13) Our results on humoral and cellular components of immunity in dependence of age, according to SENIEUR protocol admission criteria are presented.
  • (14) Normal cultured human epidermal melanocytes and melanoma cells derived from three different malignant melanomas were examined for synthesis of extracellular matrix components before and after treatment for one day with interferon-gamma, tumor necrosis factor-alpha, or both.
  • (15) Mild, significant improvement was noted in one of the hearing components, "attenuation," and an adverse effect was shown on "distortion," owing to noise.
  • (16) Two-dimensional SDS-PAGE (non-reduced and then reduced) analyses of HSV-1-infected HEL cells treated with the cleavable cross-linker DTBP demonstrated that molecules that comigrated with gC were the only components of these high Mr complexes.
  • (17) In subsequent experiments, both components were found to be significant and additive predictors of face recognition with no residual effect of typicality.
  • (18) Digestion of cytoplasmic components of horny cells was observed by electron microscopy, but both cell membranes and desmosomes remained intact.
  • (19) In the presence of high external Cl, a component of outward current that was inhibited by the anion channel blocker diphenylamine-2-carboxylate (DPC) appeared in 70% of the cells.
  • (20) A key component of a career program should be recognition of a nurse's needs and the program should be evaluated to determine if these needs are met.

Impurity


Definition:

  • (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%.