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再溶解

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When the first purification alcohol extract first enrichment, then add water to dissolve acid, then the acid fluid, finally using organic solvent basification extraction, the organic solvent extraction layer to get concentration, total alkaloid.

纯化时首先把醇提取液先浓缩,然后加入酸水进行溶解,接着再把得到的酸水液碱化,最后用有机溶剂萃取,萃取得到的有机溶剂层再进行浓缩,就得到总生物碱。

In this 'lithification' process, the originally precipitated phases undergo dissolution, reprecipitation, and isotopic re-equilibration with ambient pore fluids.

在这个所谓的岩化过程,最初沉淀的沉积物经历了溶解,再沉淀,与周围孔隙中的流体进行的同位素再平衡分馏等过程。

DIP THE TERMINAL WITHIN 7mm FORM THE EDGE INTO FLUX FOR 5 TO 10 SECONDS THEN ADJUSTING THE SOLDERING TEMPERATURE TO 230±0.5℃,WIPE THE SOLDERING DREGS AND BURNED FLUX FROM THE MELTED SOLDER,NEXT DIP THE TERMINAL 5mm FROM THE EDGE ,DIP TIME 3±0.5SECONDS.

将端子前端7MM处浸入溶剂中5-10秒,并调整焊锡温度到230±5℃,然后溶解溶剂,使溶液完全燃烧,再拭去端子上的溶剂残渣,再将端子前端5MM处浸入溶剂3±0.5秒,然后拿出使其自然冷却25.4秒±6.4秒后,再将溶剂洗去,经上述步骤后,导线需符合下列情形

Adenosine was used as the raw material, dissolved in triethyl phosphate and then esterified with thiophosphoryl chloride under 0~5℃ for 8h without water and oxgen, in alkaline condition provided by 2,6-dimethylpyridine, introducing thiophosphoryl ester to adenosine.Then superfluous triethylamine was added and reacted under 5℃ for 1h to synthesize rough 5'-AMPS.The unpurified product was appled to a DEAE Sephadex A-25 column and eluted with triethylammonium bicarbonate.

用腺苷为起始原料,溶解于磷酸三乙脂中后,在无水无氧环境中及2,6-二甲基吡啶提供的碱性条件下与三氯硫磷以0~5℃下发生酯化反应8h,将硫代磷酸酯引入腺苷,然后再与过量三乙胺在5℃下反应1h,合成粗产品,再用碳酸氢三乙胺作洗脱液,过DEAE Sephadex A-25凝胶柱纯化。

Results of HE dye after cerebral alchemic reperfusion showed: Cortex was infiltrated by neutrophil; Cells of corpus striatum and cortex of parietal lobe were stained light; the number off cells obviously reduced; the feature of cells necrosis, such as cells swelling, nuclear fragmentation and lysis et al, would be observed.

HE染色结果显示:脑缺血再灌注后,皮质区中性白细胞浸润,纹状体外侧和顶叶皮质细胞染色淡,细胞数明显 NF-。B在脑缺血再灌注后脑组织局部炎症反应中的作用减少,出现细胞肿胀,胞核碎裂和溶解等细胞坏死特征。

The result indicated that the reacting mixture containing dioxane 11.3mL/g HDCA which had been added ethyl chloroformate drop wise should be keep at 10℃ for 30min, then, rising to 15℃ for another 20min in the step of forming mixed anhydride ,and 1.5mol/L NaOH was used to dissolve taurine before aminolysis, and crude product was recrystalled by acetone in purifying process.

结果表明,形成混酐时,二氧六环用量为11.3ml/g HDCA,滴加氯甲酸乙酯后先在10℃反应30min,再在15℃下反应20min;用1.5mol/L的NaOH水溶液溶解牛磺酸后再进行氨解;粗产品用丙酮重结晶。

METHODS: 15 g/L silk fibroin solution was made by degumming, salvation and dialysis. Chitosan was dissolved in 2% acetic acid solution to prepare 25 g/L chitosan-acetic acid solution. Two solutions were mixed to prepare six silk fibroin/chitosan solutions, and mass ratio was 10: 0, 5: 5, 4: 6, 3: 7, 2: 8, 0: 10. These solutions were separately sucked in a 24-well plate. Following exhausting gas vacuole at 4 ℃, precooling was performed at -20 ℃ for 12 hours, followed by cryodesiccate for 30 hours.

通过脱胶、溶解、透析这3个主要步骤制成质量浓度为15 g/L的丝素溶液,将壳聚糖溶解在2%的醋酸溶液中制成25 g/L的壳聚糖-乙酸溶液,然后将两者混合,配制成丝素/壳聚糖质量比分别为10∶0,5∶5,4∶6,3∶7,2∶8,0∶10的6种溶液,分别吸入24孔板中,4 ℃排出气泡后,-20 ℃预冷冻12 h,再冷冻干燥30 h。

Degummed Bombyx mori silk was dissolved in a ternary solvent system of CaCl2/CH3CH2OH/H2O in 1∶2∶8 mole ratio at 60℃,and lyophilized SF was dissolved in 98% formic acid to obtain regenerated SF solution for electrospinning.

将脱胶后的桑蚕丝溶解在摩尔比为1:2:8 的60℃CaCl2/CH3CH2OH/H2O三元体系中,将该溶液冷冻干燥后溶解在98%的甲酸中得到再生丝素溶液,对其进行静电纺丝。

The rough control of TTA is carried out in the smelt dissolving tank and the fine adjustment, either after the dissolving tank or after the green liquor clarifier.

在熔渣溶解槽内粗略调整 TTA。流出溶解槽或绿液滤清器后,再对 TTA 进行微调。

However, there are many problems in this process, such as the keratin molecular weight being relatively low, the keratin molecular being easy to become globular protein, and difficult to be stretched along the fiber axis during spinning process.

废弃羊毛的再生利用一直为人们所关注,目前基本沿用化学溶解再成形的方式,但存在溶解后角蛋白分子量低,分子蜷缩成团,不易取向伸直,难以纺丝成形等诸多瓶颈。

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