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  “碘-125”译为未确定词的双语例句
     The recombinant human IGF -- I was labeled by a lactoperoxidase method. The incubation mixture for RIA consisted of 50μL extracted serum samples or standard solutions200μL antibodies(final dilution 1: 10000 ) and 200μL125 Ⅰ - IGF - Ⅰ (approximately 13000cpm).
     用乳过氧化酶法以碘-125标记IGF-I,RIA反应液中含提取液(或标准液)50μL,抗体200μL(最终滴度1:10000),(125)I-IGF-Ⅰ200μL(约13000cpm),4℃反应过夜,双抗分离。
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     Study on Iodine-25 Production Technique
     125生产工艺研究
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     125, T.
     125和T.
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     THE PREPARATION OF ~(125)I-POLYVINYLPYRROLIDONE
     ~(125)——聚乙烯吡咯烷酮的制备
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     ~(125)I-SOD was purified by columnchromatography.
     ~(125)I-B.H.
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     Changes in the time-activity curves of ~(125)I-P-CIT specific binding after clomipramine injection were also examined.
     用过氧乙酸氧化标记法制备~(125)IβCIT。
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  iodine-125
Combined Fractionated External Beam Radiotherapy and Low-Dose-Rate Iodine-125 Seeds in an Experimental Tumor System
      
OBJECTIVE The purpose of the study was to examine the efficacy of treating patients with advanced gastric cancer using iodine - 125 (125I) brachytherapy.
      
For brachytherapy, iodine- 125 seeds were implanted to deliver a homogeneous dose of 40 cGy/hr for a maximum of 6000 cGy to the enhancing tumor margin.
      
This study evaluates prognostic factors influencing survival outcomes for 50 patients with permanent125 iodine-125 implants in the primary treatment of non-GBM high-grade gliomas.
      
Permanent Iodine-125 Implants in the Treatment of Low-Grade Gliomas
      
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4-Methyl-5-ethyl-2-thiouracil,m.p.211°,was prepared according to the direc- tions of Johnson and Baily.4-Methyl-5-ethyl-uracil,m.p.236°,was formed in a 81% yield from 4-methyl-5-ethyl-2-thiouracil by boiling the latter with an aqueous solution of monochloroacetic acid.4-Methyl-5-ethyl-uracil reacted with phosphorous oxychloride and phosphorous pentachloride,giving 4-methyl-5-ethyl-2,6-dichloropy- rimidine in a 79% yield.This dichloropyrimidine boiled at 145° at 23mm,at 120° at 9mm,at 130° at 10mm,or at 130°...

4-Methyl-5-ethyl-2-thiouracil,m.p.211°,was prepared according to the direc- tions of Johnson and Baily.4-Methyl-5-ethyl-uracil,m.p.236°,was formed in a 81% yield from 4-methyl-5-ethyl-2-thiouracil by boiling the latter with an aqueous solution of monochloroacetic acid.4-Methyl-5-ethyl-uracil reacted with phosphorous oxychloride and phosphorous pentachloride,giving 4-methyl-5-ethyl-2,6-dichloropy- rimidine in a 79% yield.This dichloropyrimidine boiled at 145° at 23mm,at 120° at 9mm,at 130° at 10mm,or at 130° at 11mm;and melted at 33°.This dichloropyrimidine reacted with sodium methoxide in methyl alcohol,with sodium ethoxide in ethyl alcohol,with sodium n-propoxide in n-propyl alcohol,with sodium isopropoxide in isopropyl alcohol,with sodium n-butoxide in n-butyl alcohol,with sodium isobutoxide in isobutyl alcohol,with sodium isopentoxide in isoamyl alcohol and with sodium benzoxide in benzyl alcohol,giving the corresponding 2,6-dimethoxy-pyrimidine(b.p.113°/13mm,107°/7mm,115°/15mm,or 125°/ 18mm,),2,6-diethoxy-pyrimidine(b.p. 143°/20mm),2,6-di-n-propoxy-pyrimidine (b.p.131°/5mm),2,6-di-isopropoxy-pyrimidine(b.p.114°/5mm),2,6-di-n-butoxy- pyrimidine(b.p.175°/7mm),2,6-di-isobutoxy-pyrimidine(b.p.155°/5mm),2,6-di- isopentoxy-pyrimidine(b.p.170°/5mm)and 2,6-di-benzoxy-pyrimidine (b.p.221°/ 3mm)respectively. 4-Methyl-5-ethyl-2,6-dimethoxy pyrimidine rearranged partially in the pre- sence of methyl iodide at room temperature into 2-oxy-3,4-dimethyl-5-ethyl-6- methoxy-pyrimidine, m.p.81°,the structure of which was established by its be- havior on hydrolysis in the presence of concentrated hydrochloric acid,giving 3,4-dimethyl-5-ethyl-uracil,m.p.170-171°.Nevertheless,4-methyl-5-ethyl-2,6-di- methoxy-pyrimidine rearranged with ease into the isomeric and stable configura- tion,1,3,4-trimethyl-5-ethyI-uracil(b.p.190°/7mm,m.p.99-100°)by merely heat- ing at 280°-290° for six hours.Furthermore,the partially rearranged configura- tion,like 2-oxy-3,4-dimethyl-5-ethyl-6-methoxy-pyrimidine,was only stable,however, at this lower temperature;and further transformation into the isomeric and com- pletely rearranged modification took place by heating at 335-350° for six hours. In this case,1,3,4-trimethyl-5-ethyl-uracil(m.p.99-100°)was similarly isolated.

(1)4-甲基5-乙基-2,6-二氯代嘧啶曾用磷醯氯和五氯化磷与其相应的2,6-二羟基嘧啶作用制取。(2)4-甲基-5-乙基-2,6-二氯代嘧啶与醇钠作用,极易转变成4-甲基-5-乙基-2,6-二烷氧基嘧啶。(3)4-甲基-5-乙基-2,6-二甲氧基嘧啶和2-氧代-3,4-二甲基-5-乙基-6-甲氧基嘧啶在高温时重排成其稳定构型的(或称内醯胺)的异构体:1,3,4-三甲基-5-乙基-2,6-二氧代嘧啶。另一方面,4-甲基-5-乙基-2,6-二甲氧基嘧啶用代甲烷处理并长久放置则仅仅发生部分重排作用,得到2-氧代-3,4-二甲基-5-乙基-6-甲氧基嘧啶。

4-Methyl-2,6-dichloropyrimidine was prepared by heating 4-methyl-uracil with phosphorous oxychloride in the presence of phosphorous pentachloride; and it boiled at 97° at 7 mm, at 102° at 10 mm, or at 113° at 13 mm. 4-Methyl-2,6- dichloropyrimidine reacted with sodium methoxide in anhydrous methyl alcohol, forming 4-methyl-2,6- dimethoxy-pyrimidine, which was isolated by ether extraction and pnrified by vacuum distillation. Pure 4-methyl-2,6-dimethoxy-pyrimidine boiled at 85-87° at 7 mm, or at 103° at 13 mm,...

4-Methyl-2,6-dichloropyrimidine was prepared by heating 4-methyl-uracil with phosphorous oxychloride in the presence of phosphorous pentachloride; and it boiled at 97° at 7 mm, at 102° at 10 mm, or at 113° at 13 mm. 4-Methyl-2,6- dichloropyrimidine reacted with sodium methoxide in anhydrous methyl alcohol, forming 4-methyl-2,6- dimethoxy-pyrimidine, which was isolated by ether extraction and pnrified by vacuum distillation. Pure 4-methyl-2,6-dimethoxy-pyrimidine boiled at 85-87° at 7 mm, or at 103° at 13 mm, and melted at 62-65°. It was recrystallized from petroleum ether, m.p. 65-66°. In the above reaction, there was isolated a white solid, suspending in the ethereal solution and being collected separately. This white solid, considered as a by-product, was dissolved in hot water and acidified with acetic acid, whereupon it separated in needles. After recrystallization from water, it melted at 201-202°. It was tentatively assigned to be 4-methyl-2-methoxy- uracil. Further, 2,6-dialkoxy-pyrimidines were prepared similarly as 4-methyl-2,6-dimethoxy- pyrimidine: 4-Methyl-2,6-dichloropyrimidine reacted with sodium ethylate in anhydrous ethyl alcohol, forming 4-methyl-2,6-diethoxy-pyrimidine, which boiled at 110°/11 ram. 4-Methyl- 2,6-dichloropyrimidine was treated with sodium n-propoxide in normal propyl alcohol, forming 4-methyl-2,6-di-n-propoxy-pyrimidine, which boiled at 120°/5 mm. 4-Methyl- 2,6-dichloropyrimidine reacted with sodium iso-propoxide in isopropyl alcohol, forming 4-methyl-2,6-di-isopropoxy-pyrimidine, which boiled at 103°/3 mm. The action of sodium n-butoxide in normal butyl alcohoI upon 4-methyl-2,6-dichloropyrimidnie gave 4-methyl- 2,6-di-n-butoxy-pyrimidine, which boiled at 147-148°/5 mm. The action of sodium isobutoxide in isobutyl alcohol upon 4-methyl-2,6-dichloropyrimidine gave 4-methyl-2,6- isobutoxy-pyrimidine, which boiled at 132-133°/6 mm. The action of sodium isopentoxide in isopentyl alcohol upon 4-methyl-2,6-dichloropyrimidine gave 4 methyl-2,6-di-isopentoxy- pyrimidine, which boiled at 145-146°/3 mm. 4-Methyl-2,6-dichloropyrimidine reacted with sodium benzoxide in benzyl alcohol, giving 4-methyl-2,6-dibenzoxy-pyrimidine, which boiled at 231°/6 mm. 4-Methyl-2,6-dimethoxy-pyrimidine was heated in a sealed tube at 330-350°, giving the completely rearranged isomeric compound, 1,3,4-trimethyl-uracil, which was purified by vacuum sublimation at 130° at 10 mm and then by recrystallization from 95% alcohol. The latter melted at 107-109°. Nevertheless, 4-methyl-2,6-dimethoxy-pyrimidine was dis- solved in methyl iodide, and kept at room temperature in the dark with occasional shaking; whereupon the partially rearranged product, 2-oxy-3,4-dimethyl-6-methoxy-pyrimidine, gradually separated out. After recrystallization from absolutealcohol, it melted at 134-135.5°. Its structure was established as follows: Pure 2-oxy-3,4-dimethyl-6-methoxy-pyrimidine was heated with dilute hydrochloric acid for one hour; whereupon 3,4-dimethyl-uracil, m.p. 220-221°, separated out. This partially rearranged product, 2-oxy-3,4-dimethyl-6-methoxy- pyrimidine was heated at 335-350° and was again transformed into its stable and completely rearranged modification, 1,3,4-trimethyl-uracil, which was purified by vacuum sublimation and then recrystallization from 95% alcohol. The latter melted at 109-110°.

(1)4-甲基-2,6-二氯代嘧啶與鈉醇和醇的溶液作用,可以形成相應的2,6-二烴氧基嘧啶。 (2)4-甲基-2,6-二甲氧基嘧啶加熱至高温度即可轉變成其穩定結構的異構體1,3,4-三甲基-2,6-二羥基嘧啶。另一方面,在代甲烷催化劑的影響下,部份轉變成2-氧代-3,4-二甲基-6-甲氧基嘧啶;此化合物加熱卽可發生完全的轉變作用而形成其異構體1,3,4-三甲基-2,6-二羥基嘧啶。

From the Chinese drug, Chin-kuo-lan, there have been isolated a new crystalline alkaloid and a neutral principle. The new alkaloid, which is provisionally named calystigine, crystallized from a mixture of acetone and ether in brownish prisms, with a m.p. of 203°. It has a molecular formula of C_(25)H_(23)O_6N, according to analyses of its crystalline salts, which are (1) picrate, C_(25)H_(23)O_6N·C_6H_3N_3O_7, brownish needles, m.p. 220°; (2) nitrate, C_(25)H_(23)O_6N·HNO_3, yellow needles, m.p. 233-234°; (3)hydrochloride,...

From the Chinese drug, Chin-kuo-lan, there have been isolated a new crystalline alkaloid and a neutral principle. The new alkaloid, which is provisionally named calystigine, crystallized from a mixture of acetone and ether in brownish prisms, with a m.p. of 203°. It has a molecular formula of C_(25)H_(23)O_6N, according to analyses of its crystalline salts, which are (1) picrate, C_(25)H_(23)O_6N·C_6H_3N_3O_7, brownish needles, m.p. 220°; (2) nitrate, C_(25)H_(23)O_6N·HNO_3, yellow needles, m.p. 233-234°; (3)hydrochloride, prisms, m.p. 230°; (4) hydrobromide, yellow needles, m.p. 232°; (5) perchlorate, C_(25)H_(23)O_6N·HClO_4, yellow needles, m.p. 268°; (6) methyliodide, C_(25)H_(23)O_6N·CH_3I, bright reddish needles, m.p. 238°. The neutral principle crystallized from a mixture of chloroform and ethanol in fine soft needles, having a molecular formula of C_(14)H_(16)O_4, m.p. of 191°, and a specific rotation of +32° in chloroform. It does not contain methoxyt and carbonyl groups, but reacts with bromine in acetic-acid solution to form a monobromide C_(14)H_(15)O_4Br, m.p. 214°.

從中藥金果欖(Calystigia hydraceae)中分得新植物鹼及中性物質各一種。新植物鹼暫時命名為金果欖鹼(calystigine),其分子式為C_(25)H_(23)O_(6)N,熔點202-203°,含量0.07%。此新植物鹼是一種叔胺鹼,極易與甲烷生成黄色結形的甲基季銨鹽,熔點238°。現已製得下列各種結晶鹽質:硝酸鹽,熔點233-234°;鹽酸鹽,熔點230°;氫溴酸鹽,熔點232°;高氯酸鹽,熔點268°;苦味酸鹽,熔點202°。 從金果欖中分得的中性物質,為白色針狀晶體,其分子式為C_(14)H_(16)O_4,熔點191°,[α]_D~(15)=+32°。產量約為0.92%。此中性物質對於醋酸酐和苯肼均無反應,但與溴液在醋酸中反應稜,生成一溴化物,C_(14)H_(15)O_(4)Br,熔點214°。

 
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