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related substances
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     Result: The linear range for the content of thiamphenicol was 20.29 -203.9 μg · mL-1 ,r =0.9999(n =7) and for Its related substances was 2.072 -20. 72 μg · mL-1 ,r = 0. 9998(n =7).
     结果:含量测定的线性范围为20.29—203.9 μg·mL~1,r=0.9999(n=7); 有关物质测定的线性范围为2.072—20.72μg·mL-1;
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     The detection limits of tiotropium bromide and its three related substances were 4.1 ng,5.0 ng,2.08 ng and 0.96 ng,respectively.
     噻托溴铵和3个有关物质的检测限为4.1 ng和5.0 ng、2.08 ng、0.96 ng。
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     The linearity was obtained in the rang of 20~500μg·ml-1 of Methyclothiazidum,Y=11364X-4392 r=0.9999 and 1~40μg·ml-1 of related substances,Y=3.14e+004X-1.57e+004 r=0.99999.Conclusion:The method was simple and accurate,the established method can be used for determination of Methyclothiazidum and related substances.
     甲氯噻嗪:线性范围20~500μg·ml-1,Y=11364X-4392r=0.9999; 有关物质:线性范围1~40μg·ml-1,Y=3.14e+004X-1.57e+004r=0.99999。
短句来源
     The concentrotions of torasemide in torasemide tablets wer e 99.8 0 %,100.10 %,(100.40 %) and the related substances in torasemide tablets were 0.58 %,0.45 %,0.39 % ,respec tively.
     3批样品的标示百分含量(%)分别为99.80,100.10,100.40,有关物质的百分含量分别为0.58,0.45,0.39。
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     The detection limits for related substances——p-aminophenol and cis-tramadol hydrochloride were 6.4 and 4.5ng, with the average recoveries of 99.6% and 100.7%, respectively.
     有关物质对氨基酚和顺式盐酸曲马多的检测限分别为6.4和4.5ng,平均加样回收率分别为99.6%和100.7%。
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  相关物质
     The linear range of related substances is 0.08~0.49μg/ml, r=0.9995, and the average recovery 100.4%.
     两性霉素B相关物质在浓度为0.08~0.49μg/ml范围内线性关系良好,相关系数为0.9995; 平均回收率为100.4%;
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     Analysis and determination of penicillin V and related substances
     青霉素V及相关物质的分析测定
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     RESULTS Thirteen related substances in ampicillin and 9 related substances in amoxicillin were determined.
     结果 确定了 13种氨苄西林的相关物质及 9种阿莫西林的相关物质 ,并定量分析了实际样品中的相关物质
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     Objective To study the HPLC method for the determination of amphotericin B and it's related substances.
     目的建立HPLC法测定两性霉素B含量及相关物质
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     AIM: To investigate the effect of rotating clinostat simulated weightlessness on the expression of differentiation related substances in rat osteosarcoma osteoblast like cells (ROS17/2.8).
     目的 :观察回转器模拟失重对大鼠骨肉瘤成骨样细胞 (ROS17/ 2 .8)分化相关物质表达的作用 .
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     The related substances were calculated by enternal standard. Results:The linear range of 6-MP metabolites in Red Blood Cell:6-TGN,6-TIMP,6-MeMP were 50~2 000 ng/8×10 8RBC, r s=0 885 5~0 987 1. RSD of peak height of within-day and between-day for replicate injections were 0 2%~1 2% and 1 1%~2 1%,respectively.
     结果 :红细胞内 6 -TGN、 6 -TIMP、 6 -MeMP的浓度在 5~ 2 0 0 0ng/ 8× 10 8红细胞范围内线性关系良好 ,rs=0 885 5~ 0 9871,天内RSD为0 2 %~ 1 2 % ,天间RSD为 1 1%~ 2 1%。
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     The number of related substances in cefmeno-xime hydrochloride is 14~15 and the total amount is 1.00%~1.58%.
     盐酸头孢甲肟杂质数目为14至15个,总量为1.00~1.58%。
短句来源
     Result:The calibration curve was linear in the range of 1.0-5.0 μg(r=0.9999)for determination of its related substances with high concentration,0.1- 0.5μg(r=0.9998)for substance with average concentration and 0.01-0.04μg(r=0.9967)for substance with low concentration.
     结果:该法线性范围为1.0-5.0μg(r=0.9999),0.1-0.5μg(r=0.9998)和0.01-0.04μg(r=0.9967)。
短句来源
     Methods The related substances were separated on ODS C18 column(5 μm,6.0 mm×250 mm) at 30 ℃ with a flow rate of 1.0 mL·min-1,1.25 g·L-1 of potassium dihydrogen phosphate-methanol was used as mobile phase,a gradient elution was performed(V∶V =90∶10-70∶30).
     方法采用ODS C18色谱柱(250 mm×6 mm,5μm),以1.25 g. L-1磷酸二氢钾-甲醇(体积比为90∶10~70∶30)为流动相进行梯度洗脱,柱温为30℃,流速为1.0 mL.
短句来源
     The related substances were determined by HPLC with C18 column(250 mm×4.6 mm,5 μm),and with methanol-0.03 mol/L KH2PO4(60∶40) as mobile phase.
     采用HPLC法,使用C18柱(250 mm×4.6 mm,5μm),以甲醇-0.03 mol/L磷酸二氢钾溶液(60∶40)为流动相。
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I have made use of these resins in the preparation of overprint varnish, ornaments, synthetic marble and other related substances.
      
The well-resolved absorption spectra of D-xylose, D-ribose, D-arabinose, D-lyxose and other related substances in the spectral region between 0.3 and 2.0 THz are measured using terahertz time-domain spectroscopy (THz-TDS) at 295 K.
      
High performance liquid chromatography of chlortetracycline and related substances on poly(styrenedivinylbenzene)copolymer
      
Separation and quantitation of nicergoline and related substances by high-performance liquid chromatography/atmospheric pressure
      
The detection limits of nicergoline and its related substances were 5 to 10 ng each at a signal-to-noise ratio of 4.
      
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(1) The activity of a carboxypeptidase from swine kidney was mainly localized in the mitochondria. This enzyme was unstable to lipid-dissolving substances. The usual method of detaching enzymes from mitochondria could not, however, be applied to the solubilization of this enzyme owing to the ease of inactivation.(2) The richest source of this enzyme was kidney, especially swine kidney. Enzyme activity was also high in liver, but totally absent in lung, spleen, brain and heart. The distribution of this...

(1) The activity of a carboxypeptidase from swine kidney was mainly localized in the mitochondria. This enzyme was unstable to lipid-dissolving substances. The usual method of detaching enzymes from mitochondria could not, however, be applied to the solubilization of this enzyme owing to the ease of inactivation.(2) The richest source of this enzyme was kidney, especially swine kidney. Enzyme activity was also high in liver, but totally absent in lung, spleen, brain and heart. The distribution of this enzyme in the organs of various animals tested was found to be rather similar.(3) Carbobenzoxylglycyl-L-phenylalanine seemed to be the best of the substrates tested, followed by chloroacetyltyrosine. The values of K_M for these substrates were respectively 0.022 M and 0.2 M.(4) There appeared to be a definite stereospecificity for this enzyme which required L-configuration in the terminal amino acid with free carboxyl group. Carbobenzoxyl-L-alanyl-D-phenylalanine was completely unattacked. The hydrolysis of carbobenzoxyl-D-alanyl-L-phenylalanine was about three times slower than that of carbobenzoxyl-L-alanyl-L-phenylalanine.(5) Enzyme activity was inhibited by excess substrate. In the case of the substrate carbobenzoxyl-L-alanyl-L-phenylalanine the optimum concentration was nearly 0.04 M. Increasing the concentration to 0.08 M reduced the rate of hydrolysis to nearly on half. Both the reaction product carbobenzoxylglycine and a closely related substance carbo-benzoxyl-L-phenylalanine were found to be competitive inhibitors. For these inhibitors the measured values of K_i were separately 0.03 M and 0.0073 M.

(1)猪腎羧肽酶的活力主要集中在細胞內的綫粒体上,对脂溶性的物貭很不稳定,采用一般使酶自綫粒体上脫离的方法,都导致酶的失活。(2)酶含量在腎脏中最丰富,其次是肝,在其他肺、脾、心、脑等組織中并不存在。在所測定的不同动物中酶的分布情况大致相同,但以猪腎中的含量最高。(3)在所测定的底物中最好的作用底物是cbz-甘-L-苯丙,其次是氯乙酰酪氨酸,并分別求得K_M为0.022M和0.2M。(4)酶具有光学(?)构体的专一性,对羧基末端的氨基酸必需是L型;不作用于cbz-L-丙-D-苯丙。cbz-D-丙-L-苯丙虽能水解,但速度約低于cbz-L-丙-L-苯丙的三倍。(5)过量底物有抑制作用,cbz-甘-L-苯丙的最适浓度为0.04M,当浓度增高至0.08M时,活力降低一半左右。此外产物cbz-甘-和类似化合物cbz-L-苯丙有明显的竞爭性抑制作用,K_i分別求得为0.03M和0.0073M。

This paper is the first one about research of the electronic structure ofexplosives and related substances by means of quantum chemistry. Using DJS-6electronic computer made in China, the electronic structure of the amino-benzene nitroderivatives has been computed in terms of the SHMO method,and their molecular diagrams have been constructed. The all valenceelectron SCF-CNDO/2 calculation has been completed for explosive TATB(1, 3, 5-triamino-2, 4, 6-trinitrobenzene) which has special thermal stabilityand...

This paper is the first one about research of the electronic structure ofexplosives and related substances by means of quantum chemistry. Using DJS-6electronic computer made in China, the electronic structure of the amino-benzene nitroderivatives has been computed in terms of the SHMO method,and their molecular diagrams have been constructed. The all valenceelectron SCF-CNDO/2 calculation has been completed for explosive TATB(1, 3, 5-triamino-2, 4, 6-trinitrobenzene) which has special thermal stabilityand resistance to initiation by shock. The data obtained by the CNDO/2method and the molecular diagrams agree well with each other and areexcellently consistent with some recent reports abroad. This research isuseful to explanation of the classical organic experimental rules, to deeperunderstanding of the properties of these explosive compounds (for example,excellent thermal stability of TATB) and to giving instruction to doingorganic syntheses.

本文是用量子化学方法研究炸药及其相关物的电子结构的第Ⅰ报。使用国产DJS-6电子计算机,对苯胺类硝基衍生物进行SHMO计算,建立它们的分子图;对典型耐热和难以撞击起爆的炸药分子TATB(1,3,5-三胺基-2,4,6-三硝基苯),实现了全价电子的SCF-CNDO/2计算。这些分子图和CNDO/2数据,彼此良好相符;与近年来国外某些报导,也完全一致;能够解释经典有机的许多经验规律;对深入理解和研究这些物质的性质(例如TATB的热稳定性等)以及指导有机合成均有所助益。

Based on research results so far available of organic geochemistry, coal petrology and coal chemical-technology, a systematic exposition is made of the first coalification jump ( geochemical bituminization ) of humic coals, an exposition in which enough evidence is provided that crude oil is formed from humic coals under certain conditions and that the highly-volatile bituminous coals stage is the main period for coal-formed oil. Comprehensive studies of coal-formed oil and other related substances, according...

Based on research results so far available of organic geochemistry, coal petrology and coal chemical-technology, a systematic exposition is made of the first coalification jump ( geochemical bituminization ) of humic coals, an exposition in which enough evidence is provided that crude oil is formed from humic coals under certain conditions and that the highly-volatile bituminous coals stage is the main period for coal-formed oil. Comprehensive studies of coal-formed oil and other related substances, according to the authors, are very important, especially at present, hoth theoretically and practically

本文根据已取得的有机地球化学、煤岩学和化学工艺学的大量资料,全面阐述了腐植烟煤第一次煤化作用的跃变(地球化学沥青化作用),从而证明了腐植煤在一定条件下是可以自然形成石油,高挥发分烟煤期是煤成油重要阶段的客观事实。特别是在当前,研究“煤成油”及其有关问题不仅有重要的理论意义,而且也有很大的实用价值

 
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