titraten.

Brit.

/ˈtʌɪtreɪt/, U.S.

/ˈtaɪˌtreɪt/

Origin: Probably formed within English, by conversion; perhaps modelled on a German lexical item. Etymon: titrate v.

Etymology: Probably < titrate v. (compare -ate suffix¹), perhaps after German Titrat (1857 or earlier). Compare earlier titration n. Compare also titrant n.

Chemistry.

A solution of unknown concentration which is (to be) tested by means of titration.Contrasted with titrant.

ΚΠ

1878 Chem. News 12 July 25/1 Ignition transforms the titrate into carbonate.

1941 H. J. S. Sand Electrochemistry & Electrochemical Anal. III. i. i. 4 Indicating..the number of mols of titrant added per unit volume of titrate by t.

2009 Methods Enzymol. 468 412 A typical titration requires approximately 1.8–2.0 mL of titrate at a concentration of 1–2 µM. The titrant will typically be at a concentration 10–20 times that of the titrate.

This entry has been updated (OED Third Edition, March 2019; most recently modified version published online March 2022).

titratev.

Brit.

/tʌɪˈtreɪt/,

/ˈtʌɪtreɪt/, U.S.

/ˈtaɪˌtreɪt/

Origin: Formed within English, by derivation; perhaps modelled on a German lexical item, or perhaps modelled on a French lexical item. Etymons: titre n., -ate suffix³.

Etymology: < titre n. + -ate suffix³, perhaps after German titrieren (1851 as titriren) or its model French titrer (1851 or earlier).

1. transitive. Chemistry. To determine the concentration of (a solution or constituent of a solution), by adding measured volumes of a reagent of known concentration, until the point is reached at which a reaction just begins or ceases to occur (often marked by a change in colour of the reagent or of an added indicator). Also occasionally intransitive.

ΘΚΠ

the world > matter > chemistry > chemical assay or analytical chemistry > analyse chemically [verb (transitive)] > by process of specific types of chemical analysis > analyse by titration

titrate1860

1860 [implied in: Q. Jrnl. Chem. Soc. 12 40 The distillate may be caught in a titrated acid solution, and the quantity of ammonia formed estimated, from which the nitric acid present may be calculated. (at titrated adj. 1)].

1861 Philos. Trans. (Royal Soc.) 151 546 Care was taken to operate on such a quantity of nitrogenous material that the number of septems of the alkali representing its nitrogen should be sufficiently large to render the constant errors of titrating, reading, &c., inappreciable.

1862 Med. Times & Gaz. 8 Nov. 489/1 In order to titrate the baryta-water, diluted oxalic acid is used.

1870 G. E. Davis in Eng. Mech. 4 Mar. 605/2 In titrating iron solutions, the ferrocyanide is not used.

1899 J. Cagney tr. R. von Jaksch Clin. Diagnosis (ed. 4) i. 4 Tauszk weighs the blood used, and titrates with tropæolin or litmus.

1940 Jrnl. Amer. Chem. Soc. 62 2166/1 At suitable intervals..metaphosphoric acid was added to quench the reaction, and the samples were titrated.

1982 G. C. Hill & J. S. Holman Chem. in Context: Lab. Man. & Study Guide 19 Titrate the liberated iodine against standard 0.1 M sodium thiosulphate adding about 2 cm ³ of starch indicator when the iodine colour is pale yellow.

2006 Biophysical Chem. 124 19/1 Mixtures of phytic acid and Ca²⁺..were titrated alkalimetrically.

2. transitive. Medicine. To regulate (a physiological parameter) or treat (a disorder or patient) by means of incremental changes in the dose of a drug or other therapeutic agent; to adjust (dosage or treatment) in this way to achieve a desired response or outcome. Also in extended use and figurative: to adjust or control (something) carefully.

ΚΠ

1949 Proc. Soc. Exper. Biol. & Med. 72 721/2 Further studies are in progress..to attempt to ‘titrate’ the minimal dosage of cortisone necessary to inhibit the growth of granulation tissue in the rabbit.

1957 Med. Clinics N. Amer. May 872 A 1 per cent solution may be given intravenously by slow drip while titrating the blood pressure.

1973 O. Sacks Awakenings 28 Health..reduced to a level, something to be titrated or topped up in a mechanical way.

1977 Ann. Internal Med. 86 200/1 Each week another tablet can be added in a process of titrating the patient to the most effective and tolerable dose.

1998 S. Fried Bitter Pills i. ii. 50 Diane was encouraged to regulate—or ‘titrate’—the dose herself.

2008 New Yorker 7 July 46/2 In giving his dancers psychological cues, Morris is trying to convey a specific emotion. Elsewhere, though, he titrates emotion, controls its flow.

Derivatives

tiˈtratable adj. able to be measured by titration.

ΘΚΠ

the world > matter > chemistry > chemical assay or analytical chemistry > [adjective] > of specific types > of or relating to titration > capable of

titratable1899

1899 A. I. Cohn Indicators & Test-papers i. 5 Strongly acid or basic substances would be titratable by means of any of the indicators.

1929 Amer. Jrnl. Physiol. 87 538 During the experiments no marked change occurred in the titratable acid concentration of the urine.

1973 Nature 14 Dec. 425/1 Calculation of the total titratable acid in the collected effluent.

2005 P. Kindstedt Amer. Farmstead Cheese iv. 73/2 The titratable acidity of fresh cow's milk is typically around 0.16 percent expressed as lactic acid.

† titrate adj. Obsolete rare precisely measured.

ΘΚΠ

the world > matter > chemistry > chemical assay or analytical chemistry > [adjective] > of specific types > of or relating to titration > of that which has been subjected to

titrate1885

1885 Athenæum 11 July 54/1 Dr. R. Dubois's apparatus for applying anæsthetics composed of titrate mixtures of chloroform and air was described on June 22nd..before the Academy of Sciences.

This entry has been updated (OED Third Edition, March 2019; most recently modified version published online March 2022).

单词	titrate
释义	titraten. Brit. /ˈtʌɪtreɪt/, U.S. /ˈtaɪˌtreɪt/ Origin: Probably formed within English, by conversion; perhaps modelled on a German lexical item. Etymon: titrate v. Etymology: Probably < titrate v. (compare -ate suffix¹), perhaps after German Titrat (1857 or earlier). Compare earlier titration n. Compare also titrant n. Chemistry. A solution of unknown concentration which is (to be) tested by means of titration.Contrasted with titrant. ΚΠ 1878 Chem. News 12 July 25/1 Ignition transforms the titrate into carbonate. 1941 H. J. S. Sand Electrochemistry & Electrochemical Anal. III. i. i. 4 Indicating..the number of mols of titrant added per unit volume of titrate by t. 2009 Methods Enzymol. 468 412 A typical titration requires approximately 1.8–2.0 mL of titrate at a concentration of 1–2 µM. The titrant will typically be at a concentration 10–20 times that of the titrate. This entry has been updated (OED Third Edition, March 2019; most recently modified version published online March 2022). titratev. Brit. /tʌɪˈtreɪt/, /ˈtʌɪtreɪt/, U.S. /ˈtaɪˌtreɪt/ Origin: Formed within English, by derivation; perhaps modelled on a German lexical item, or perhaps modelled on a French lexical item. Etymons: titre n., -ate suffix³. Etymology: < titre n. + -ate suffix³, perhaps after German titrieren (1851 as titriren) or its model French titrer (1851 or earlier). 1. transitive. Chemistry. To determine the concentration of (a solution or constituent of a solution), by adding measured volumes of a reagent of known concentration, until the point is reached at which a reaction just begins or ceases to occur (often marked by a change in colour of the reagent or of an added indicator). Also occasionally intransitive. ΘΚΠ the world > matter > chemistry > chemical assay or analytical chemistry > analyse chemically [verb (transitive)] > by process of specific types of chemical analysis > analyse by titration titrate1860 1860 [implied in: Q. Jrnl. Chem. Soc. 12 40 The distillate may be caught in a titrated acid solution, and the quantity of ammonia formed estimated, from which the nitric acid present may be calculated. (at titrated adj. 1)]. 1861 Philos. Trans. (Royal Soc.) 151 546 Care was taken to operate on such a quantity of nitrogenous material that the number of septems of the alkali representing its nitrogen should be sufficiently large to render the constant errors of titrating, reading, &c., inappreciable. 1862 Med. Times & Gaz. 8 Nov. 489/1 In order to titrate the baryta-water, diluted oxalic acid is used. 1870 G. E. Davis in Eng. Mech. 4 Mar. 605/2 In titrating iron solutions, the ferrocyanide is not used. 1899 J. Cagney tr. R. von Jaksch Clin. Diagnosis (ed. 4) i. 4 Tauszk weighs the blood used, and titrates with tropæolin or litmus. 1940 Jrnl. Amer. Chem. Soc. 62 2166/1 At suitable intervals..metaphosphoric acid was added to quench the reaction, and the samples were titrated. 1982 G. C. Hill & J. S. Holman Chem. in Context: Lab. Man. & Study Guide 19 Titrate the liberated iodine against standard 0.1 M sodium thiosulphate adding about 2 cm ³ of starch indicator when the iodine colour is pale yellow. 2006 Biophysical Chem. 124 19/1 Mixtures of phytic acid and Ca²⁺..were titrated alkalimetrically. 2. transitive. Medicine. To regulate (a physiological parameter) or treat (a disorder or patient) by means of incremental changes in the dose of a drug or other therapeutic agent; to adjust (dosage or treatment) in this way to achieve a desired response or outcome. Also in extended use and figurative: to adjust or control (something) carefully. ΚΠ 1949 Proc. Soc. Exper. Biol. & Med. 72 721/2 Further studies are in progress..to attempt to ‘titrate’ the minimal dosage of cortisone necessary to inhibit the growth of granulation tissue in the rabbit. 1957 Med. Clinics N. Amer. May 872 A 1 per cent solution may be given intravenously by slow drip while titrating the blood pressure. 1973 O. Sacks Awakenings 28 Health..reduced to a level, something to be titrated or topped up in a mechanical way. 1977 Ann. Internal Med. 86 200/1 Each week another tablet can be added in a process of titrating the patient to the most effective and tolerable dose. 1998 S. Fried Bitter Pills i. ii. 50 Diane was encouraged to regulate—or ‘titrate’—the dose herself. 2008 New Yorker 7 July 46/2 In giving his dancers psychological cues, Morris is trying to convey a specific emotion. Elsewhere, though, he titrates emotion, controls its flow. Derivatives tiˈtratable adj. able to be measured by titration. ΘΚΠ the world > matter > chemistry > chemical assay or analytical chemistry > [adjective] > of specific types > of or relating to titration > capable of titratable1899 1899 A. I. Cohn Indicators & Test-papers i. 5 Strongly acid or basic substances would be titratable by means of any of the indicators. 1929 Amer. Jrnl. Physiol. 87 538 During the experiments no marked change occurred in the titratable acid concentration of the urine. 1973 Nature 14 Dec. 425/1 Calculation of the total titratable acid in the collected effluent. 2005 P. Kindstedt Amer. Farmstead Cheese iv. 73/2 The titratable acidity of fresh cow's milk is typically around 0.16 percent expressed as lactic acid. † titrate adj. Obsolete rare precisely measured. ΘΚΠ the world > matter > chemistry > chemical assay or analytical chemistry > [adjective] > of specific types > of or relating to titration > of that which has been subjected to titrate1885 1885 Athenæum 11 July 54/1 Dr. R. Dubois's apparatus for applying anæsthetics composed of titrate mixtures of chloroform and air was described on June 22nd..before the Academy of Sciences. This entry has been updated (OED Third Edition, March 2019; most recently modified version published online March 2022). < n.1878v.1860
随便看	unwithheld unwithholden unwithholding unwithit unwithsayable unwithstandable unwithstood unwitless unwitness unwitnessed unwits unwitship unwitted unwitten unwitter unwitterness unwittily unwitting unwittingly unwittingness unwitty unwive unwived unwives unwiving