What's the difference between cleaning and purifying?

Cleaning


Definition:

  • (p. pr. & vb. n.) of Clean
  • (n.) The act of making clean.
  • (n.) The afterbirth of cows, ewes, etc.

Example Sentences:

  • (1) Squadron Leader Kevin Harris, commander of the Merlins at Camp Bastion, the main British base in Helmand, praised the crews, adding: "The Merlins will undergo an extensive programme of maintenance and cleaning before being packed up, ensuring they return to the UK in good order."
  • (2) After four years of existence, many evaluations were able to show the qualities of this system regarding root canal penetration, cleaning and shaping.
  • (3) Other recommendations for immediate action included a review of the Nursing and Midwifery Council and the General Medical Council for doctors, with possible changes to their structures; the possible transfer of powers to launch criminal prosecutions for care scandals from the Health and Safety Executive to the Care Quality Council; and a new inspection regime, which would focus more closely on how clean, safe and caring hospitals were.
  • (4) I usually use them as a rag with which to clean the toilet but I didn’t have anything else to wear today because I’m so fat.” While this exchange will sound baffling to outsiders, to Brits it actually sounds like this: “You like my dress?
  • (5) From the treatment group 23 patients could be assessed: 2 had discontinued clean intermittent self-catheterization due to urethral hemorrhage, 2 died during the observation period and 1 was lost to followup.
  • (6) The corresponding hydrides, mono-n-butyltin hydride, di-n-butyltin hydride, tri-n-butyltin hydride, monophenyltin hydride, diphenyltin hydride triphenyltin hydride, are detected by electron-capture gas chromatography after clean-up by silica gel column chromatography.
  • (7) Gassmann, whose late father, Vittorio , was a critically acclaimed star of Italian cinema in its heyday in the 1960s, tweeted over the weekend with the hashtag #Romasonoio (I am Rome), calling on the city’s residents to be an example of civility and clean up their own little corners of Rome with pride.
  • (8) Will the rate of late (four to five years) wound infection after operations done in a clean-air enclosure be lower than that after procedures done in a "normal" operating-room environment using preoperative, operative, and postoperative antibiotics?
  • (9) While there has been almost no political reform during their terms of office, there have been several ambitious steps forward in terms of environmental policy: anti-desertification campaigns; tree planting; an environmental transparency law; adoption of carbon targets; eco-services compensation; eco accounting; caps on water; lower economic growth targets; the 12th Five-Year Plan; debate and increased monitoring of PM2.5 [fine particulate matter] and huge investments in eco-cities, "clean car" manufacturing, public transport, energy-saving devices and renewable technology.
  • (10) Several studies have found that pollution and climate change disproportionately affect the poor , which means boosting clean energy generation and cutting pollution could also simultaneously reduce global inequality .
  • (11) The Clean Air Act (CAA) Amendments of 1990 was signed into law by President Bush on November 15, 1990.
  • (12) She followed that with a job at Bibendum – she still talks of Simon Hopkinson, "such an elegant cook, so particular and clean and efficient", with deep reverence – and another at Roscoff in Northern Ireland.
  • (13) Data support the use of clean intermittent catheterization under the conditions used in this study, including the use of a sterile catheter each day and careful monitoring of infection and technique.
  • (14) During this period, the microbial flora of the isolator was unchanged, and the time required to clean the cages was reduced by 50%.
  • (15) Rayburn, who was also told by his jobcentre he would lose his benefits if he did not work without pay, said he spent almost two months stacking and cleaning shelves and sometimes doing night shifts.
  • (16) Although a clean step response or the ensemble average of several responses contaminated with noise is needed for the generation of the filter, random noise of magnitude less than or equal to 0.5% added to the response to be corrected does not impair the correction severely.
  • (17) Nick Nuttall, a spokesman for UNEP, said the latest findings should encourage more governments to follow moves by some politicians to invest billions of dollars in clean energy and efficiency as a way of curbing greenhouse gases.
  • (18) And that is why we have taken bold action at home – by making historic investments in renewable energy; by putting our people to work increasing efficiency in our homes and buildings; and by pursuing comprehensive legislation to transform to a clean energy economy.
  • (19) A government-commissioned review into the RET, headed by the businessman and climate change sceptic Dick Warburton, concluded that while it has largely achieved its aims and helped create jobs in clean energy, it should be either wound back or cut off entirely.
  • (20) The studies allow the interpretation that retention of food in the diverticula is not the reason for the bacterial miscolonization of the duodenum and the biliary tract, but in patients with diverticula a disturbed self-cleaning mechanism is present.

Purifying


Definition:

  • (p. pr. & vb. n.) of Purify

Example Sentences:

  • (1) Competition with the labelled 10B12 MAb for binding to the purified antigen was demonstrated in sera of tumor-bearing and immune rats.
  • (2) Previous attempts to purify this enzyme from the liquid endosperm of kernels of Zea mays (sweet corn) were not entirely successful owing to the lability of partially purified preparations during column chromatography.
  • (3) The nuclear origin of the Ha antigen was confirmed by the speckled nuclear immunofluorescence staining pattern given by purified antibody to Ha obtained from a specific immune precipitate.
  • (4) The quaternary structure of ribonucleotide reductase of Escherichia coli was investigated, with the use of purified B1 and B2 proteins and bifunctional cross-linking agents.
  • (5) Western blot analysis of these mitochondria using an antibody against carnitine palmitoyltransferase II purified from beef heart demonstrates a 68-kDa protein, which under ischemic conditions apparently is decreased by 2 kDa.
  • (6) ASF-II was purified to apparent homogeneity by using concanavalin A-agarose affinity chromatography, DEAE-cellulose chromatography, alumina gel adsorption, and isoelectric focussing techniques.
  • (7) The enzyme was solubilized by Triton X-100 and purified approximately 480-fold by gel filtration and affinity chromatography on alanine methyl ketone-AH-Sepharose 4B.
  • (8) The DNA untwisting enzyme has been purified approximately 300-fold from rat liver nuclei.
  • (9) heterografts of GW-39, a CEA-producing colonic tumor of human origin, was demonstrated in radioimmunoassay using radioiodinated CEA purified from GW-39.
  • (10) Four new monochain phospholipases were purified from the Oxyuranus scutellatus (taipan) venom.
  • (11) By growing purified human cytotrophoblasts under serum-free conditions and manipulating the culture surface, we were able to disassociate morphologic from biochemical differentiation.
  • (12) Lysates of cells were compared to purified DNA as PCR template.
  • (13) 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.
  • (14) Proliferation of quiescent hematopoietic stem cells, purified by cell sorting and evaluated by spleen colony assay (CFU-S), was investigated by measuring the total cell number and CFU-S content and the DNA histogram at 20 and 48 hours of liquid culture.
  • (15) Adult nonpregnant female rhesus monkeys fed purified diets containing 100 or 4 ppm zinc for 1 yr were mated then studied through midgestation.
  • (16) Monoclonal antibodies (mAbs) against the soluble form (S-COMT) of catechol-O-methyltransferase (COMT, EC 2.1.1.6) were produced using a purified preparation of the enzyme from pig liver as antigen.
  • (17) Transcription studies in vitro on repression of the tryptophan operon of Escherichia coli show that partially purified trp repressor binds specifically to DNA containing the trp operator with a repressor-operator dissociation constant of about 0.2 nM in 0.12 M salt at 37 degrees , a value consistent with the extent of trp operon regulation in vivo.
  • (18) The specificity of the assay was established by competitive displacement of 125I-labeled arginine-rich protein from its antiserum by arginine-rich protein and lipoproteins containing this protein, but not by rat albumin or other purified apolipoproteins.
  • (19) To augment the in vitro expansion of LAK cells, we added highly purified human recombinant interleukin-2, phytohemagglutinin and accessory cells (Uc cells) to the LAK culture system, with which huge number of LAK cells (LAK-L) were generated from originally small number of peripheral blood lymphocytes of cancer patients.
  • (20) This enzyme was purified to homogeneity and exhibited an apparent molecular weight of 36,000 on sodium dodecyl sulfate gels and 180,000 on a TSK G-3000SW column in the presence of Triton X-100.

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