(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%.
Potash
Definition:
(n.) The hydroxide of potassium hydrate, a hard white brittle substance, KOH, having strong caustic and alkaline properties; -- hence called also caustic potash.
(n.) The impure potassium carbonate obtained by leaching wood ashes, either as a strong solution (lye), or as a white crystalline (pearlash).
Example Sentences:
(1) The purpose of this study was to determine the clinical, epidemiological and evolutive characteristics of interdigital and plantar intertrigo of the feet among people working in a coking plant, a potash mine and a motorcar factory.
(2) Fast "inactivation" of the potassium current is seen with patch pipettes fabricated from soft glass (soda glass or potash lead glass), and is probably caused by block of the potassium channels by di- or multivalent cations released from the glass.
(3) The prevalence of pleural calcification and pneumoconiosis in talc workers with 15 or more years of employment was higher than in potash miners.
(4) When rotary (drum) filters are used for phase splitting and rotary driers for drying the moist potash fertilizers the emission rate of chlorohydrogen lies between 300 and 1,000 mg m-3.
(5) The Palestinian economy could earn $918m (£571m), 9% of 2011 GDP, if minerals such as potash and bromine were harvested from the Dead Sea.
(6) The GCA RDM 101-1 has been evaluated using aerosols of coal, Arizona road dust, silica, potash, and rock (copper ore) particles.
(7) Symptoms were only slightly more prevalent in talc workers when compared to potash miners.
(8) From January 1986 through 1990, 70 children (42 boys, 28 girls) with esophageal stricture resulting from ingestion of caustic potash underwent simultaneous esophagectomy and colonic interposition utilizing the transhiatal esophageal approach.
(9) Danakali’s managing director Paul Donaldson said , “The Danakil region of East Africa is recognised as an emerging potash [potassium salts] province, and to date over 10bn tonnes of potassium bearing salts have been identified.” Online intelligence magazine Geeska Afrika explained : “Eritrea has many benefits it can offer potential investors.
(10) The mine, which sits on protected moorland overlooking Whitby and Robin Hood’s Bay, aims to produce up to 20m tonnes a year of a potassium-rich mineral called polyhalite, a type of potash fertiliser described by Sirius as a “fertiliser of the future”.
(11) On the basis of investigations in the potash mining industry of GDR were formulated the starting conditions for experiments in a simulation chamber.
(12) Three commonly used fertilizers, urea, single superphosphate and muriate of potash, induced chromosome and chromatid breaks in the metaphase chromosomes of bone marrow cells of fertilizer-fed Swiss albino mice, Mus musculus.
(13) A small corner of one of Britain’s most stunning national parks will be dug up to make way for a £1.7bn potash mine after locals were wooed with promises of more than 1,000 jobs – and the idea of restoring the proud mining heritage of the north-east of England.
(14) Cells from hardened formalin-fixed human hearts were isolated with potash lye.
(15) Two examples are a potash mine in the North York Moors National Park, which is expected to create up to 2,000 jobs, and the new Hitachi plant in Newton Aycliffe constructing superfast trains, which aims to bring in 730 workers.
(16) The dispute followed the collapse this month of a Russia-Belarus sales cartel that controlled two-fifths of the $20bn global market for potash, an ingredient used in mineral fertilisers.
(17) The method was compared with Beohringer's method (n = 50) using hydrolysis of alcoholic potash.
(18) Derek Quinn, who has just retired after 34 years at North Yorkshire’s existing potash mine, in nearby Boulby, said: “From what I understand, I think it will be excellent for the area.
(19) After a four-year planning wrangle, members of the North York Moors National Park Authority were cheered on Tuesday when they narrowly gave the green light to UK firm Sirius Minerals – via its subsidiary York Potash – to dig a mile-deep shaft under heavily protected moorland overlooking Whitby and Robin Hood’s Bay.
(20) The cutaneous sensitivity to benzalkonium chloride, sodium lauryl sulphate and potash soap was determined in 54 monozygotic and 46 dizygotic twin pairs.