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radiochemical purity
相关语句
  放化纯度
    The labeled complex 131I-YP13, 131I-mPEG-YP13 and 131I-YR13 were isolated and purified by RP-HPLC. The radiochemical purity was estimated to be better than 95%.
    RP-HPLC分离纯化YP13、mPEG-YP13和对照随机十三肽YR13(YEDIKPKTSLAFR)131I标记产物,放化纯度大于95%.
短句来源
    (1) Sodium gluconate or tartrate were selected as chelate agent respectively, (2) The radiochemical purity was determined every an hour from Ih to 6h after labeling, (3) the pH value of acetate buffer from 3.8 to 5.8, (4) the volume of l88Re perrhenate from 50?
    (2)分别在标记后1、2、3、4、5、6h测定放化纯度; (3)乙酸缓冲液pH值从3.8至5.8;
短句来源
    (2) When the keeping time of reaction was 5h, the radiochemical purity of 188Re-BSA was (91.6 ? 3.35)%, (3) When the pH value of acetate buffer was 5.0, the radiochemical purity of l88Re-BSA was (95.2 ?.6)%, (4) When the volume of l88Re perrhenate was 100?
    (3)乙酸缓冲液pH值5.0时~(188)Re标记牛血清白蛋白放化纯度达到(95.2±0.6)%; (4)淋洗液体积100μL时~(188)Re标记牛血清白蛋白放化纯度为(88.9±5.1)%;
短句来源
    The labelling efficiency ismore than 9 2%in the optimum condition(using ethanol as reaction medium,100℃,20 min ) andthe radiochemical purity of ̄(125)I- lipiodol is above 98%as detemined by TLC and HPLC.
    用乙醇为反应介质,在100℃下标记反应20min,回收率达92%,经纸色层法及高压液相色谱(HPLC)测定, ̄(125)I-碘化油的放化纯度>98%;
短句来源
    A specific radioimmunoassay(RIA) for thyrocalcitonin(CT) is developed and applied to the measurment of serum. CT is iodinated according to the method of ch T and purified by Sephadex G 50. The specific activity of 125 I CTB more than 9.5 TBq/g,the radiochemical purity is more than 95% and the excessive antibody binding is (85-91)%.
    采用氯胺T法对人降钙素(hCT,以下简称CT)进行125I标记,用SephadexG-50柱分离纯化,得到比活度>9.5TBq/g、放化纯度>95%、与过量抗体结合率为(85—91)%的125I-CT。
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  “radiochemical purity”译为未确定词的双语例句
    In all the 220 times of determination for the radiochemical purity of a portion of imaging agents, there were 15 times in which the labeling efficiency was lower than 90% and only 3 times in which the radiolabeling failed.
    经对部分显像剂做的220次放化纯测定得:其中15次标记率小于90%,3次标记失败.
短句来源
    The results show that 99 Tc m ECD prepared by EDTA ligand exchange reaction is very stable, the radioactivity doesn ,t influence the radiochemical purity and lipophilic fraction, the best pH limits is ranged from 5 to 8, and 360 μg EDTA amounts with 2~6 mL volume is suitable.
    结果表明,用EDTA交换法标记99Tcm-ECD时,放射性浓度对标记影响不大,pH5~8范围宽,容易标记,EDTA用量为360μg和反应体积在2~6mL为宜;
短句来源
    Tc m CACPPA is prepared by the reduct ion of stannous chloride with Na 99 Tc mO - 4 in aqueous soluti on a t pH8.5 ̄9.5,the labeling yield and radiochemical purity are over 90% determined by TLC and HPLC.
    在pH8.5~9.5的水溶液中,采用氯化亚锡还原法制备99Tcm-CACPPA,TLC和HPLC检测其标记率和放化纯均大于90%。
短句来源
    g, (3) the vitro stability of l88Re-octreotide was analyzed by using human serum as challenging agent, and the radiochemical purity was determined from 1h to 48 hours after labeling.
    (3)标记完成0.5h后分别加入人血清或生理盐水50μL,室温下放置48h以测定标记物体外稳定性。
短句来源
    5 min, 30 min, 1 h, 3 h and 6 h later, imaging results and radioactivity in tissues were obtained too. All data of in vivo biodistribution were analyzed by the statistic software of SPSS 12.0.Results: The radiochemical purity of 99mTc-HYNIC-AnnexinⅤreached 99%. Cyclophosphamide treatment significantly increased the tumor uptake(percentage activity of injected dose per gram of tissue [%ID/g])of 99mTc-HYNIC-AnnexinⅤ.
    4. 为明确化疗药物是否会改变肿瘤的血供,从而影响 99mTc-HYNIC-AnnexinⅤ 在肿瘤部位的积聚,根据实验方法 3 中所确定的化疗后显像的适宜时间,给荷瘤小鼠尾静脉注射 99mTc-DTPA-HSA,测定其体内各组织器官的血流分布情况。
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  radiochemical purity
The optimal amounts of DMAE (25 μl in 50 μl of ethanol) and tC18 (0.1 g) were found, providing a high radiochemical yield of the labeled choline (85%, corrected for radioactive decay) and radiochemical purity of more than 99.5%.
      
With 166Ho-albumin microspheres as example, an algorithm was developed for evaluation of the radiochemical purity of the preparation.
      
It was found that the radiochemical purity of the preparation, which is primarily determined by impurities of rare-earth elements, can be estimated from the content of 152mEu.
      
A simple "dry" procedure was developed for isolation of 186Re with a yield no less than 85% and radiochemical purity no worse than 99.99%.
      
The radiochemical purity of a 131I preparation (the iodide fraction) was determined by ascending paper chromatography using a mixture of sodium iodide, sodium iodate, and sodium carbonate as a carrier and aqueous methanol as an eluent.
      
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The results of more than 7909 imaging of various organs which have been carried out on domestic gel-type 99Mo-99mTc generators in the last seven years, are presented in this paper. In all the 220 times of determination for the radiochemical purity of a portion of imaging agents, there were 15 times in which the labeling efficiency was lower than 90% and only 3 times in which the radiolabeling failed. In comparison with labeling capability of nuclear fission generators, it is showed that there are no evident...

The results of more than 7909 imaging of various organs which have been carried out on domestic gel-type 99Mo-99mTc generators in the last seven years, are presented in this paper. In all the 220 times of determination for the radiochemical purity of a portion of imaging agents, there were 15 times in which the labeling efficiency was lower than 90% and only 3 times in which the radiolabeling failed. In comparison with labeling capability of nuclear fission generators, it is showed that there are no evident differences between the eluent's labeling efficiency of the two kinds of generators.

介绍了国产凝胶型~(99)Mo-~(99m)Tc发生器的7年来完成的7907例各脏器显像.经对部分显像剂做的220次放化纯测定得:其中15次标记率小于90%,3次标记失败.经与裂变发生器标记性能的比较证明,两种发生器洗脱液标记率间无明显差异.

PURPOSE 99mTc labelled polyclonal human immunoglobulin G (HIG) is a novel agent for detecting infection and in flammation. We report the preparation, quality control, pharmacology and preliminary clinical evaluation of this imaging agent. METHODS After modification of HIG and purification, the HIG kit was formulated and lyofilized. Labelling yield and radiochemical purity were determined by TLC-SG, PC and Sephadex G-50 column chromatography.Animal models for pharmacologic experiments were mice, rats and...

PURPOSE 99mTc labelled polyclonal human immunoglobulin G (HIG) is a novel agent for detecting infection and in flammation. We report the preparation, quality control, pharmacology and preliminary clinical evaluation of this imaging agent. METHODS After modification of HIG and purification, the HIG kit was formulated and lyofilized. Labelling yield and radiochemical purity were determined by TLC-SG, PC and Sephadex G-50 column chromatography.Animal models for pharmacologic experiments were mice, rats and rabbits. RESULTS The labelling yield was 99%immediately after mixing HIG with 99mTc and more than 90% of radioactivity was retained after keeping the labelled product at room temperature 24 hours post labelling. There were good accumulation and high T/ B ratio in animal models (rats and rabbits bearing turpentine and Staphylococcus aureus induced inflammatory or infectious foci). CONCLUSIONS The results showed that this new agent is nearly ideal for localization of infectious / inflammatory lesions.

研制一种特异性亲炎症或感染部位的示踪定位显像剂99mTc标记的人多克隆免疫球蛋白G(HIG).方法:用2-亚氨基硫烷修饰HIG,制备冷冻干燥99mTc标记一步法药盒,测定该药盒及其标记产物99mTc-HIG的理化性质、生物性能,初步试用于临床.结果:室温下该药盒经与99mTcO混合后,立即得到标记年大于99%的99mTc-HIG,标记方法简单便利;标记后室温保存24小时,放化纯度仍大于90%,产物稳定性好;在炎症/感染动物模型上,示踪剂定位明确.T/B值高;药盒的各项技术指标符合药典体内诊断试剂的规定.结论:经初步临床试用,诊断价值肯定,特别适合于我国国情.

An isotopic exchange method has been used to label lipiodol with  ̄(125)I.The labelling efficiency ismore than 9 2%in the optimum condition(using ethanol as reaction medium,100℃,20 min ) andthe radiochemical purity of ̄(125)I- lipiodol is above 98%as detemined by TLC and HPLC. The labellingprocess does not change the chemical structure of lipiodol. The ̄(125)I- lipiodol is stable at least in onemonth at room temperature.

介绍了利用同位素交换反应制备肝癌治疗剂 ̄(125)I-碘化油。用乙醇为反应介质,在100℃下标记反应20min,回收率达92%,经纸色层法及高压液相色谱(HPLC)测定, ̄(125)I-碘化油的放化纯度>98%;经红外光谱分析,放射性碘标记并不改变碘化油的分子结构,并且标记物稳定性好,室温下放置一个月,标记物放化纯度无明显降低。

 
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