rf value 比移值(4) rf值(66) rf＝(1)   比移值      Results: Rf value of two constituents of the catechins were identifical with that of standard preparation (P>0.05) .      从广西绿茶中成功提取茶多酚并进一步分离出2种单体成分：EGCG、ECG，两种儿茶素成分与相应的标准品比移值无差别(P＞0.05)，该法工艺简单、得率高、成本低，是一种较为理想的分离方法。 短句来源      When the temperature under 140 degrees centigrade, the color, clarity, ultraviolet absorb peak,optical rotation,PH valueprotien content,Rf value and active rosette forming rate were not significantly change compared with those of TH before heat.But when the temperature over 150 degrees centigrade,these markers as mentioned above,except ultraviolet absorb peak were all significantly changed.      结果：加热140℃以下15min，其色泽、澄明度、紫外吸收峰、旋光度、PH值、蛋白质含量、相对比移值和活性玫瑰花形成率，与未加热样品比较，均无明显变化； 加热至150℃以上，上述指标除紫外吸收峰外，余均显著改变。 短句来源      Results: The extract from A. berebihoria showed the most effective scavenging activities on O - 2· and ·OH (32.19% and 26.05% respectively) in six aloe species. The fraction A with a Rf value of 0 497 was proved to be a pure antioxidant (Rt=15.956 min).      结果 :　龙山芦荟 (Aloe berebihoria)提取物的清除两种自由基的能力最强 ,清除率分别为 3 2 .1 9%和 2 6 .0 5 % ,经纯化得到组分 A(比移值 Rf为 0 .497) ,高压液相色谱分析为单一组分 ,保留时间 (Rt)为 1 5 .95 6 min,醋酸镁甲醇显色反应表明该物质为具有酚羟基的蒽醌类物质。 短句来源      The Rf value of single colour and combination shade of ME type reactive dye at different concentrations are measured, and the fluctuation of colour shade appearing in padding is analyzed.      测定ME型活性染料不同浓度单色及拼混的比移值,对其在轧染中出现的色光波动进行分析,有利于染色质量的提高。 短句来源   rf值      A new saponin is white powder isolated from fresh ginseng root the mp 182～183 molecular weight 588 Rf value of HTLC exceed the ginsenoside Rh 2, but oleanolic acid compare little.      从鲜人参根中分离出一种未知皂甙为白色粉末，测得其熔点mp182℃～183℃，分子量为588，其HTLC的Rf值大于人参皂甙Rh2而小于齐墩果酸。 短句来源      Normal RF value group:RF≤15%;      根据RF值进行分组:RF>15%为RF异常组; 短句来源      RF value in MD≥15dB group showed higher value than that in MD<15dB group(P<0.01); Then the eyes were divided again according to the RF value.      MD≥15dB组RF值35.73±3.69,显著高于MD<15dB组5.14±0.73(P<0.01); 短句来源      An ethanol-ethylacetate-1,2 _ dichloroethane-10%(φ) ammonia water system(4∶3∶2∶1 by volume) was used as a developing agent, and a thin layer plate of silica gel G was previously treated with 0.27 mol/L EDTA solution at pH=7. Rf value of 0.40 and 0.59 were obtained for PLX and SPLX, repectively.      用0.27mol·L -1、pH=7的EDTA溶液修饰硅胶G板 ,避免了试样与金属离子的络合作用 ; 使用乙醇 -乙酸乙酯 -1,2_二氯乙烷 -10 %(φ)氨水(体积比4∶3∶2∶1)为展开剂 ,FLX和SPLX的Rf值分别为0.40和0.59 ; 短句来源      The soluble protein content in C. dactylon pretreated by ABA for 24 h were higher than CK, and increased protein bands with Rf value 0.05,0.14,0.64 (molecular weight 196.0,148.4,31.6 kD) which were similar with that of 16 h PEG treatment.      ABA处理24h后,可溶性蛋白质种类和含量均高于CK,与PEG胁迫16h后的蛋白质谱带近似,增加了如Rf值为0.05,0.14,0.64的蛋白质谱带(分子质量196.0,148.4,31.6kD)。 短句来源 更多          rf＝      But the activity of both enzymes in 5005 still stayed in a lower level. New isoperoxidase band with Rf value 0.105 and new isosuperoxide dismutase band with Rf value 0.383 emerged in resistant inbred line 1145 after inoculation, no new isoperoxidase band was observed but it showed three new isosuperoxide dismutases bands of 5005 after inoculation.      接种诱导后抗病自交系1145产生一条新的Rf＝0．105的POD同工酶带和一条新的Rf＝0．383的SOD同工酶带，感病自交系5005没有出现新的POD同工酶带但SOD同工酶谱变化复杂，有3条新的酶带出现。 短句来源   “rf value”译为未确定词的双语例句      Seven spots of Rf value at 0.26,0.30,0.35, 0.44, 0.49 0.66, 0.79, were shown by paper-layer chromatography.      纸层析显了个斑点,R_f值为0.26、0.30、0.35、0.44、0.49、0.66、0.79。 短句来源      7 bands in PM_2 and the Rf value was 48.05%～94.81%;      PM2有7条谱带,迁移率为48 05%～94 81%; 短句来源      8 bands in PM_1 and the Rf value was 38.96%～94.81%;      PM1有8条谱带,迁移率为38 96%～94 81%; 短句来源      20 bands in PM_3 and Rf value was 2.78%～63.89%.      PM3有20条谱带,迁移率为2 78%～63 89%。 短句来源      18 bands in PM_2 and Rf value was 2.78%～67.59%;      PM2有18条谱带,迁移率为2 78%～67 59%; 短句来源 更多        查询“rf value”译词为用户自定义的双语例句     我想查看译文中含有：的双语例句 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。   rf value The fluorescent band showing a Rf value identical with synthetic 6-biopterin was eluted; gas liquid chromatography and mass spectrometry of the isolated compound were carried out. 例句来源       The isolation of an additional tocopherol with Rf value between α and γ tocopherol has been achieved in all investigated seeds. 例句来源       The LPPS had Rf value of 0.65-0.75 in Thin Layer Chromatography (TLC) using saturated phenol water solvent system. 例句来源       The least polar fraction (1) had a Rf value identical with that of cholesterol and represents the total free steroids. 例句来源       The impact of an ES delivered at an interval of 280?ms produces a PR similar to that from a HR of 150?bpm; yet, it recovers similarly to the termination of pacing at 200?bpm, eliciting a similar RF value. 例句来源       更多                    1. The Rf value of paper chromtograph of 16 Naphtols have been determinated using the filter paper made in this country and several solvent including ethyl alcohol, n-butyl-alcohol, NH,OH, pyridine, etc. 2. By means of spectrophotometric and colorimetric methods of measurement on tht azo solution of naphtol AS series. The adsorption isotherms of AS, AS-D, AS-BO and AS-SW on cotton fabrics at 30℃. were obtained. Culenlations based on Vickerstoff's equation were obtained as follow: naphtol affinit...             1.以国产滤紙,測定了16种AS的R_f值,用了若干溶剂,包括了乙醇,正丁醇,NH_4OH及吡啶等。 2.在溫度30℃,AS的偶氮溶液以光电分光度法及比色法,測定了AS,AS-D,AS-BO,AS-SW的吸附等温线,根据Vickerstoff公式Δμ=lu (D(?)(Nα)~z(?)RT)/(Dσ(Nα)_(zσ)V~(z+1)计算出AS的亲和力(Cal/mole)AS 2470 AS-D 3080 AS-BO 2760 ΔS-SW 3230 3.找出了R_F值与亲和力的关系式Δμ=-2660+RT(z+1)lu (R_f)/(1-R_f) AS-D是例外。 文摘来源          In a previous communication, we reported that after intraperitoneal injection of N-C~(14)-formylsarcolysine to normal rats, about 54.3％ of the radioactivity was excreted in the urine in five hours. In the present paper, the isolation and identification of three metabolites of N-C~(14)-formylsarcolysine in rat and mouse urine are described. Paper chromatograms (using n-butanol: acetic acid: water, 5:1:4, as the developing solvent) of urine from normal rats given N-C~(14)-formylsarcolysine usually showed thre...             正常大鼠或吉田肉瘤大鼠腹腔注射N[C~(14)]-甲酰溶肉瘤素后第一次所排尿中,最少含有三个代謝产物。代謝物1为未变的N[C~(14)]-甲酰溶肉瘤素,其含量为尿中放射性的51.5—52.7％。代謝物2为未脫掉甲酰基的含羥基化合物排出量約为尿中放射性的20.2—23.1％。代謝物3可能是C~(14)-甲酸,排出量約为尿中放射性的9.5—12.6％。自梭形細胞肉瘤B_(22)及Krebs-2腹水癌小鼠尿中亦得到相似的結果。溶肉瘤素并非N[C~(14)]-甲酰溶肉瘤素的主要代謝产物,但并不能排除N[C~(14)]-甲酰溶肉瘤素通过溶肉瘤素轉变为溶肉瘤素羟基水解物的可能性。 N[C~(14)]-甲酰溶肉瘤素在正常动物体內的代謝在质与量上与肿瘤动物者并无不同;在对N-甲敏感瘤动物(吉田肉瘤大员、Krebs-2腹水癌小员)与不敏感瘤动物(梭形細胞肉瘤B_(22)小鼠)之間亦无明显差异。 文摘来源          Vitamin U is a commonly used combined drug for treatment of ulcer of digestive nature. Its chemical name is [(3-Amino-3-carboxypropyl)dimethyl sulfomium chloride].In this paper we have used the paper chromatography with N-butanol-95% ethanol-formic acid-water (77:15:20:20) as developing agent. We have separated and identified anti-moisture granule of vitamin U,and determined Rf value of each component.After separation of vitamin U from its decomposition products, serine, glycine etc., we availed...             本文用纸层析法以正丁醇-95％乙醇-甲酸-水(77:15:20:20)为展开剂,分离鉴定了维生素U防湿颗粒,并测量了各组分的R_f值。 将维生素U与其分解产物丝氨酸、甘氨酸等分离后,利用双波长薄层扫描仪与微型色谱数据处理机联用,以外标法及相对百分含量法测定含量。本法准确、灵敏、操作简便。 文摘来源   << 更多相关文摘         相关查询: value of rf h rf value value [ rf value) value rf (radial frequency) value momentary value underbalance value overheat value safe value media value  对查询结果不满意

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