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   衍生物气相色谱法 的翻译结果: 查询用时:0.214秒
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衍生物气相色谱法
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  “衍生物气相色谱法”译为未确定词的双语例句
     Determination of Furfural in Furfuryl Alcohol Gross Product by Gas Chromatography of β-Cyclodextrin Derivative
     β-环糊精衍生物气相色谱法测定糠醇粗产物中糠醛含量
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     Analysis of the Saccharide Composition obtained from Digestion of Amur Silver Grass with Sulfate Process by Gas Chromatography of Acetylated Aldononitriles
     应用糖腈乙酰酯衍生物气相色谱法研究荻的糖类组分及其在硫酸盐蒸煮过程中的变化
短句来源
     Derivative Gas Chromatographic Analysis of Fructooligosaccharide in Fermented Sucrose
     衍生物气相色谱法测定蔗糖发酵液中的寡果糖
短句来源
     After hydrolysis,SP-2 was found by GC to consist of only one kind of monosaccharide,viz. glucose. Infrared spectrum indicated that SP-2 has β glycosidic linkage of D glycopyranoside.
     将多糖组分SP - 2水解后 ,用糖腈乙酸酯衍生物气相色谱法分析鉴定得单一葡萄糖 ,红外光谱显示SP - 2为 β D 吡喃糖苷键构成。
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  相似匹配句对
     Determination of commercial glycerin by gas chromatography——acetylated derivative method
     气相色谱法分析工业甘油——乙酰衍生物
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     Chemical Derivatives from Sucrose
     蔗糖化学衍生物
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     PYROLYTIC-GAS CHROMATOGRAPHY
     热解-气相色谱法
短句来源
     Derivative Gas Chromatographic Analysis of Fructooligosaccharide in Fermented Sucrose
     衍生物气相色谱法测定蔗糖发酵液中的寡果糖
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     The Synthesis of Glycyrrhetinic Acid Derivatives
     甘草次酸衍生物的合成
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  derivative gas chromatography
The problems of derivative gas chromatography of the alkanolamines have been discussed.
      


Trifluoracetic acid (TFA) was applied for the hydrolysis of milled sugarcane skin lignin (MSL) and enzymatically isolated sugarcane skin lignin (ESL). The component of carbohydrate remained in both MSL and ESL was determined through aldononitrile derivatives by gas chroma-tography. The time of preparing aldononitrile derivatives was much less than that published before[l5], and the accuracy of results is higher than that of the original standard by preacetylated inositol and by using integrator connected with...

Trifluoracetic acid (TFA) was applied for the hydrolysis of milled sugarcane skin lignin (MSL) and enzymatically isolated sugarcane skin lignin (ESL). The component of carbohydrate remained in both MSL and ESL was determined through aldononitrile derivatives by gas chroma-tography. The time of preparing aldononitrile derivatives was much less than that published before[l5], and the accuracy of results is higher than that of the original standard by preacetylated inositol and by using integrator connected with gas chromatograph. The response factors of arabinose, xylose, mannose, glucose and galactose are determined. The recoveries of the monosacc-harides in the analysis are all over 90%.

本文应用三氟乙酸水解磨甘蔗本素及磨甘蔗酶解本素,用糖腈乙酰酯衍生物气相色谱法对木素残留的碳水化合物组成进行了测定和研究。通过改进用肌醇乙酰酯为内标,气相色谱联用计算积分机,测定了鼠李糖、阿拉伯糖、木糖、甘露糖、葡萄糖、半乳糖等的校正因子,并缩短了衍生物制备时间和提高了定量分析的准确性。测得各单糖的回收率均在90%以上。

The Componont and molar ratio of the glucomannan isslated from Szechwan konjac flower was identified and determined. It is found that the glueomannan is only composed of D-glucose and D-mannose with D glucose:mannose=1:2

用单糖的三甲基硅烷化(TMS)衍生物的气相色谱法测定四川磨芋多糖的组成,确定该多糖的组成为葡萄糖和甘露糖,摩尔比为1:2。

Nostoc Commune as raw material,after refluxing with methyl alcohol for 5 h to remove fatty materials,was extracted 3 times by water at 98 ℃ for 3.8 h.The combined raffinate was concentrated under vacuum,protein removed by proteolytic enzyme once and by Sevag method 7 times,and dialyzed by distilled water for 2 d.By adding 3 times volume of φ (CH 3CH 2OH)=95% alcohol,polysaccharides were precipitated and freeze dried.Then the dried mass was dissolved in boiling water,three water soluble polysaccharides(SP-1,SP-2...

Nostoc Commune as raw material,after refluxing with methyl alcohol for 5 h to remove fatty materials,was extracted 3 times by water at 98 ℃ for 3.8 h.The combined raffinate was concentrated under vacuum,protein removed by proteolytic enzyme once and by Sevag method 7 times,and dialyzed by distilled water for 2 d.By adding 3 times volume of φ (CH 3CH 2OH)=95% alcohol,polysaccharides were precipitated and freeze dried.Then the dried mass was dissolved in boiling water,three water soluble polysaccharides(SP-1,SP-2 and SP-3) were obtained by QAE-sephadex-A-25 chromatography.SP-2 was shown to be homogenenous by sephadex G-100 chromatography and acetate film electrophoresis.Molecular weight of SP-2 was estimated to be 8 82×10 4 by HPLC.After hydrolysis,SP-2 was found by GC to consist of only one kind of monosaccharide,viz. glucose.Infrared spectrum indicated that SP-2 has β glycosidic linkage of D glycopyranoside.Results of biological activity tests showed that at concentration of 0 5,5 and 2 mg/L,SP-2 increased the germination rate of the seeds of Brassica juncea,cockscomb and Lycopersicum esculentum by 14%,12% and 9% respectively as compared with the controls.

以普通念珠藻为原料 ,用甲醇脱脂 ,再用水作提取剂 ,控制温度 98℃ ,提取 3次 ,每次 3 8h ,合并提取液 ,减压浓缩 ,用蛋白酶法脱蛋白 1次 ,Sevag法脱蛋白 7次 ,用蒸馏水透析 2d ,醇析后冷冻干燥 ,热水溶解 ,经QAE -sephadex -A - 2 5柱层析 ,得SP - 1、SP - 2和SP - 3三个多糖组分。SP - 2经sephadexG - 10 0柱层析及醋酸纤维薄膜电泳证明为均一组分 ;经高效凝胶色谱法测定其相对分子质量为 8 82× 10 4 ;将多糖组分SP - 2水解后 ,用糖腈乙酸酯衍生物气相色谱法分析鉴定得单一葡萄糖 ,红外光谱显示SP - 2为 β D 吡喃糖苷键构成。生物活性实验表明 ,SP- 2的质量浓度分别为 0 5、5、2mg/L时 ,芥菜籽、鸡冠花籽、番茄种子的发芽率分别比对照组增长 14%、12 %、9%

 
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