| 释义 |
fluoro-|fluːərəʊ|
1. Used as comb. form of fluorine (rarely of fluoride), chiefly in the names of chemical compounds, as fluoroaˈcetamide, CH2F·CONH2, a stable, toxic, fluorinated derivative of acetamide with strong insecticidal properties; ˈfluoroform [ad. F. fluoroforme (Meslans 1890, in Compt. Rend. CX. 717): see chloroform], a gas (CHF3) that is almost completely inert both chemically and physiologically and is the fluorine analogue of chloroform; ˌfluorohydroˈcortisone = fludrocortisone; ˈfluorotype Photogr. [-type], an old positive process in which paper sensitized with sodium fluoride was used.
1909Jrnl. Chem. Soc. XCVI. ii. 297 The author has determined the heats of formation of the following compounds... *Fluoroacetamide, 249·55 cal. 1958Nature 28 June 1810/2 Fluoroacetamide is as effective as the more dangerous sodium fluoracetate as a systemic insecticide. 1964New Statesman 20 Mar. 438/3 Last month the government banned the sale of fluoroacetamide as an insect control.
1890Jrnl. Chem. Soc. LVIII. ii. 724 This gas is *fluoroform, CHF3. 1950N. V. Sidgwick Chem. Elements II. vii. 1130 A guinea-pig put into a 50 per cent. air-fluoroform mixture..did not know that the gas was there.
1954Fried & Sabo in Jrnl. Amer. Chem. Soc. LXXVI. 1455/2 9α-*Fluorohydrocortisone acetate..was obtained in about 50% yield. Ibid. 1456/1 Deacetylation of I [sc. 9α-fluorohydrocortisone acetate] with sodium methylate afforded 9α-fluorohydrocortisone. 1970W. Modell Drugs of Choice 1970–71 xxxii. 511 All patients with Addison's disease now can be satisfactorily managed with oral therapy using 10 mg. of hydrocortisone 2 to 3 times a day, plus 0·1 mg. of 9-alpha-fluorohydrocortisone (fludrocortisone) a day or every other day.
1844R. Hunt Res. Light 106 It has been found that the fluate of soda has the property of quickening the sensibility of bromidated papers to a very remarkable extent; and from this quality a new process, which I would distinguish by the name of the *Fluorotype, results. 1955H. & A. Gernsheim Hist. Photogr. iii. xi. 124 Fluorotype derives its name from the fluoride of sodium used in preparing the paper... The exposure was only half a minute and the picture was developed with protosulphate of iron.
2. Used as combining form of fluorescence, as in fluorometer, etc. |