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高氯酸

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objective:to make a comparative analysis of the total saponins content in polygalaceae phloem and xylem parts to guide clinical treatment.methods:we determined the polygalaceae total saponins content at the 575 nm with oleanolic acid as a reference substance and vanillin-perchoric acid as a developer by using uv-visible spectrophotometry.results:the total saponins content of xylem parts was 3.33%,and that of polygalaceae phloem was 0.69%.conclusion:the total saponins content in polygalaceae xylem parts is much more than that of phloem parts,the total saponins in polygalaceae mainly exists in xylem parts.

目的:对远志原药材木部及皮部中总皂苷含量进行比较分析,用以指导临床用药。方法:以齐墩果酸为对照品,香草醛-高氯酸为显色剂,采用紫外-可见分光光度法在575 nm处测定远志总皂苷含量。结果:以此方法对远志木部及皮部中总皂苷含量进行比较、分析,为远志皮部总皂苷含量为3.33 %、木部总皂苷含量为0.69 %。结论:远志中皮部总皂苷含量远远大于木部,远志总皂苷主要存在于根皮中。

Results illustrated that Fe2O3 can catalyze pyrotechnical reagent with potassium perchlorate, and the addition is better with crystallization method.

利用绝热加速量热仪分别研究了氧化铁对含高氯酸钾烟火药剂、氧化铜对含硝酸钾烟火药剂的催化作用。

The maximal reaction rate of pyrotechnical reagent with potassium perchlorate added with Fe2O3 by crystallization method is 8.10 min-1, which is 4.09 times of that without catalyst. The time to maximal rate is 8.52 min, which is lower than that without catalyst by 92.8%. It was also found that CuO can catalyze pyrotechnical reagent with potassium nitrate, and the addition is better with mixing method.

结果表明,氧化铁对含高氯酸钾的烟火药剂具有催化作用,以结晶添加法催化效果最佳;此药剂的最大反应速率为8.10 min-1,是不含催化剂药剂的4.09倍;到达最大反应速率时间为8.52 min,比不含催化剂的药剂降低了92.8%。

A salt of tungstic acid .

高氯酸形成的一种盐。

The experimental condition of acetylating method for determining priminary alcohol and secondary alcohol catalyzed by perchloric acid in the medium of analytically pure ethylacetate is proposed.

提出了以高氯酸为催化剂,分析纯乙酸乙酯为介质,乙酰化法测定伯、仲醇的实验条件,实现了对经典方法的改进,简化了操作程

Studied the changes of nucleotide and metabolizing products contents in muscle under high pressure.

:高压处理绵羊肌肉中核苷酸及其代谢产物的含量变化和降解机理的研究,是采用高氯酸提取方法,利用高效液相色谱对其进行分析。

Methods Anhydrous acetic acid as solvent, 0.1 mol/L perchloric acid as titrant, crystal violet solution as indicator to establish non-aqueous titrations and ODS column as stationary phase, methanol and a mixture of 0.025 mol/L sodium phosphate monobasic and 0.02 mol/L sodium dedecyl sulfate (80:20) adjusted with phosphoric acid to a pH (4.8±0.1J as mobile phase, 220 nm as detective wavelength to establish HPLC-UV method for determination of piperazinylethylestrone drug substance; FMOC-CL as a derivatization reagent, FD as a detector to establish an HPLC method with derivatization and column switching for determination of piperazinylethylestrone in dog plasma.

分别采用无水冰醋酸为溶剂,0.1mol/L高氯酸为滴定液,结晶紫指示液指示终点的非水滴定法和HPLC-UV法测定哌嗪雌酚酮原料药含量;以FMOC-CL为衍生化试剂,采用柱切换柱前衍生化萤光检测的HPLC法测定狗血浆中哌嗪雌酚酮含量。

Two complexes of alkaline-earth metals perchlorate with phenyl-acetylmethylene sulfoxide(C6H5SOCH2 COCH3) have been synthesized and characterized by elemental analysis and IR spectra.

本文选取苯基乙酰甲基亚砜(C6H5SOCH2COCH3)作为配体与碱土金属的高氯酸盐反应得到配合物的单晶,对它们进行了元素分析及红外光谱表征,它们的化学式为[ML6](ClO4)2(M=Ca、Sr;L=C6H5SOCH2COCH3)。

The mechanisms for AP of the main compositions of composite propellants with additives such as ammonium oxalate, strontium carbonate and AO/SC were studied by FTIR and DSC.

采用傅里叶变换红外吸收光谱和差示扫描量热法研究了草酸铵,碳酸锶及复配的草酸铵/碳酸锶等添加剂对复合固体推进剂主要组分高氯酸铵的作用机理。

Through these we find the characterization of ammonium sulfate and aniline ratio, hydrochloride and perchlorate (HCLO4) concentration, polyvinylpyrrolidone and polyvinyl alcohol of Concentration on the morphology and conductivity polyaniline films have great impact.

通过这些表征我们发现过硫酸铵与苯胺摩尔比、盐酸和高氯酸(HCLO4)的浓度、聚乙烯吡咯烷酮和聚乙烯醇的浓度对聚苯胺薄膜形貌和电导率有很大的影响。

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This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

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