| 영문 | buffer action | 한글 | 완충작용 |
|---|---|---|---|
| 설명 | 혈압, pH 등과 같이 생체의 기능 및 상태를 안정시키고자 하는 작용 : pH 7인 순수한 물에서 소량의 산 또는 알칼리를 가하면 그 양에 따라 물의 pH가 뚜렷하게 변한다. 그러나 약한 산과 그 염의 혼합용액, 또는 약한 산기와 그 염의 혼합용액으로 이루어지는 계에서는 약간의 산 또는 알칼리를 가해도 완충작용 때문에 pH는 거의 변하지 않는다. 예를 들어, 약한 산과 그 염의 혼합용액으로 이루어지는 계系에 산을 가했을 때를 생각하면, 산에 의해서 가해진 수소이온 H+은 약한 산이온과 결합하여 비해리인 산이 되어 pH가 변하지 않는다. 또 알칼리를 가했을 때는 가해진 수산이온 OH－이 H+과 결합하여 물을 만들고, 부족한 H+은 비해리 약한 산의 해리에 의해서 보충되므로써 역시 pH는 변하지 않는다. |
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| BB | bad breath; bed bath; beta blockade, beta blocker; BioBreeding [rat]; blanket bath; blood bank; bloo... |
|---|---|
| VB | vaginal bulb; valence bond; venous blood; ventrobasal; Veronal buffer; vertebrobasilar; viable birth... |
| DDD | AV universal [pacemaker]; defined daily dose; degenerative disc disease; dehydroxydinaphthyl disulfi... |
| SUS | Saybolt Universal Seconds; solitary ulcer syndrome; stained urinary sediment; suppressor sensitive |
| UB 82 | universal billing document [1982] |
| UP | Universal Precautions |
|---|---|
| UNHS | Universal newborn hearing screening |
| PBS | I--phosphate buffer solution |
| pH 7.5 | K+-phosphate buffer |
| KHB | Krebs Henseleit buffer |
buffer
| buffer | <biochemistry, chemistry> A system that acts to minimise the change in concentration of a specific chemical species in solution against addition or depletion of this species. PH buffers: weak acids or weak bases in aqueous solution. The working range is given by pKa +/ 1. Metal ion buffers: a metal ion chelator for example EDTA, partially saturated by the metal ion acts, as a buffer for the metal ion. (18 Nov 1997) |
|---|---|
| buffer capacity | <chemistry> The ability of a buffer solution to absorb added alkali or acid while maintaining the solution's pH. (09 Oct 1997) |
| buffer index | The power of a substance in solution to absorb acid or alkali without change in pH; this is highest at a pH value equal to the pKa value of the acid of the buffer pair. See: buffer capacity. Synonym: buffer index. (05 Mar 2000) |
| buffer pair | An acid and its conjugate base (anion). (05 Mar 2000) |
| buffer value | The power of a substance in solution to absorb acid or alkali without change in pH; this is highest at a pH value equal to the pKa value of the acid of the buffer pair. See: buffer capacity. Synonym: buffer index. (05 Mar 2000) |
| buffer value of the blood | The ability of the blood to compensate for additions of acid or alkali without disturbance of the pH. (05 Mar 2000) |
| buffer zone | <ecology> An area of land separating two distinct land uses that acts to soften or mitigate the effects of one land use on the other. (09 Oct 1997) |
| riparian buffer | Riparian areas that are managed to protect the aquatic and riparian ecosystem. A riparian buffer protects water quality and temperature, habitat along the banks, upland habitat for aquatic and riparian species, and some or all of the floodplain. (05 Dec 1998) |
| secondary buffer | See: Hamburger's law. (05 Mar 2000) |
| dipolar buffer | Buffer whose structure can include opposite charges. Synonym: dipolar buffer. (05 Mar 2000) |
| zwitterionic buffer | Buffer whose structure can include opposite charges. Synonym: dipolar buffer. (05 Mar 2000) |
| universal | 1. Of or pertaining to the universe; extending to, including, or affecting, the whole number, quantity, or space; unlimited; general; all-reaching; all-pervading; as, universal ruin; universal good; universal benevolence or benefice. "Anointed universal King." "The universal cause Acts not by partial, but by general laws." (Pope) "This universal frame began." (Dryden) Universal and its derivatives are used in common discourse for general and its derivatives. See General. 2. Constituting or considered as a whole; total; entire; whole; as, the universal world. "At which the universal host up dent A shout that tore Hell's concave." (Milton) 3. <mechanics> Adapted or adaptable to all or to various uses, shapes, sizes, etc.; as, a universal milling machine. 4. <logic> Forming the whole of a genus; relatively unlimited in extension; affirmed or denied of the whole of a subject; as, a universal proposition; opposed to particular; e. G. (universal affirmative) All men are animals; (universal negative) No men are omniscient. 5. Universal dial, a dial by which the hour may be found in any part of the world, or under any elevation of the pole. 6. <astronomy> Universal instrument, a contrivance used for joining two shafts or parts of a machine endwise, so that the one may give rotary motion to the other when forming an angle with it, or may move freely in all directions with respect to the other, as by means of a cross connecting the forked ends of the two shafts. Since this joint can not act when the angle of the shafts is less than 140 deg, a double joint of the same kind is sometimes used for giving rotary motion at angles less than 140 deg. 7. <botany> Universal umbel, a primary or general umbel; the first or largest set of rays in a compound umbel; opposed to partial umbel. A universal involucre is not unfrequently placed at the foot of a universal umbel. Synonym: General, all, whole, total. Origin: L. Universalis: cf. F. Universel, OF. Also universal. (10 Mar 1998) |
| universal antidote | <pharmacology> A preparation of activated charcoal that can adsorb and therefore neutralise many toxic chemicals. (09 Oct 1997) |
| universal appliance | A combination of the edgewise and ribbon arch appliance techniques, affording precise control of individual teeth in all planes of space. (05 Mar 2000) |
| universal coverage | Health insurance coverage for all persons in a state or country, rather than for some subset of the population. It may extend to the unemployed as well as to the employed; to aliens as well as to citisens; for pre-existing conditions as well as for current illnesses; for mental as well as for physical conditions. (12 Dec 1998) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|