英语人>网络例句>碘化 相关的搜索结果
网络例句

碘化

与 碘化 相关的网络例句 [注:此内容来源于网络,仅供参考]

For a dye regenerated system composed of eosin ethyl ester iodonium salt (EOEtIPh2) triethylamine, the efficiency of sensitization is 4 times higher than of single system EOEtIPh2, at mean time the number of active radicals is also multiplicated and thus this system is of importance in practical application.

由乙基曙红碘翁盐/三乙胺组成的染料再生体系的染料敏化效率比单一体系高4倍左右,同时使活性自由基的数量增殖,这种体系在实际应用方面具有重要意义。

1M of iodide was optimized parameter of electrolyte in this research. Furthermore, the TiO2 film gave a higher conversion efficiency than the TiO2 film nontreated by 4-tertbutylpyridine, which increased 13% by surface treatment with 4-tertbutylpyridine.

在碘浓度为0.1M时为此实验电解液之最佳参数,另外TiO2薄膜电极通过4-叔丁基吡啶的处理,染料敏化太阳能电池之转换效率较未处理电极高出了13%。

Due to the exploitation and utilization of deep groundwater in northern Shandong plain, a lot of environmental problms have been occurred,such as,the regional deep groundwater depression is continuously enlarging,in some area,deep groundwater exhausted and water quality is becoming more and more saltish,as well as land subsidence was aggravated and endemic appeared in some major towns.The reason is that the groundwater exploitation is most concentrated in towns areamabd tge exploiting methods is much more irrational.

摘 要:鲁北平原在深层地下水开发利用过程中,由于开采地段过于集中在城镇,加上不合理开采等因素,出现了区域性深层地下水超采漏斗不断扩大、部分地段地下水资源枯竭和水质咸化问题严重、重点城镇地面沉降加剧及饮用高氟高碘地下水引发的地方病呈上升趋势等诸多水环境问题。

This article uses the tetramethyl ammonium hydroxide∕methyl iodide for methyl esterification and the method of temperature program ,determine the content of lactic acid, ethanoic acid, propionic acid, butyric acid.

使用四甲基氢氧化铵/碘甲烷对青贮料浸出液进行甲酯化反应,采用程序升温的方法,同时测定青贮料中乳酸、乙酸、丙酸、丁酸的含量。

The results show that the crude fat in corn bran is 5.99%, the protein is 4.86%, the crude fiber is 12.45%. The physico-chemical indexes of corn bran oil are as following: d(superscript 20℃ subscript 4℃) 0.9135, IV 112.4gI/l00g, SV 189.1mgKOH/g, unsaponifiable matters 3.75%. The fatty acid composition of corn bran oil is: oleic acid 30.27%, linoleic acid 54.14%, palmic acid 13.68%, stearic acid 1.14%.

结果表明,玉米皮粗脂肪含量为5.99%,粗蛋白质4.86%,粗纤维含量为12.45%;玉米皮油的相对密度0.9135,皂化值189.1mgKOH/g,碘值112.4gI/100g,不皂化物3.75%;玉米皮油脂肪酸组成中,油酸30.27%,亚油酸54.14%,棕榈酸13.68%,硬脂酸1.14%。

Using classical diazotisation of anilines, 5-(4-aminophenyl)-10,15,20-triphenyl-porphyrin was converted to a series of meso-tetraarylporphyrins with different substituents, including 5-(4-hydroxylphenyl)-10,15,20-triphenylporphyrin (80%), 5-(4-chlorophenyl)-10,15,20-triphenylporphyrin (74%), 5-(4-iodinphenyl)-10,15,20-triphenylporphyrin (76%), 5-(4-hydrazinephenyl)-10,15,20-triphenylporphyrin (67%) and 5-(4-bisphenyl)-10,15,20-triphenylporphyrin (32%). Therefore an efficient way of synthesizing unsymmetrically substituted TAPs was developed.

利用芳胺的重氮化及重氮盐反应,研究了5-(4-氨基苯基)-10,15,20-三苯基卟啉上氨基官能团的转化反应,以较高产率合成了5-(4-羟基苯基)-10,15,20-三苯基卟啉(80%)、5-(4-氯苯基)-10,15,20-三苯基卟啉(74%)、5-(4-碘基苯基)-10,15,20-三苯基卟啉(76%)、5-(4-肼基苯基)-10,15,20-三苯基卟啉(67%)和5-(4-联苯基)-10,15,20-三苯基卟啉(32%)等一系列含单个para-取代基的meso-四芳基卟啉,为合成不对称取代的芳基卟啉提供一条有效途径。

Because of its simpler faceting structure, larger inclusions are sometimes more visible to the unaided eye, so diamonds cut in this shape usually need to be higher clarity (I1 or I2 clarities should probably be avoided).

由于它结构简单面化,有时更夹杂较大的肉眼可见,这个钻石形等,通常需要削减高清晰度(中间体或碘clarities或许可以避免)。

According to the results and data reported, it was given that the catalysis activity of iodine in acid and alcohol esterfication is not high.

将实验结果与文献数据综合分析,得出了碘作为催化剂在酸醇直接酯化反应中的催化活性不高。

In the medium of H2SO4 with KBr as the catalyst, the color of Cresol Red oxidized by iodate can be faded, and the degree of color fading is proportional to the concentration of iodine and the linear range of determination is 20 μg/25 mL~50 μg/25 mL.

在硫酸介质中、在溴化钾催化条件下,碘酸根对甲酚红有褪色作用,且褪色的程度与碘酸根的量有关,碘定量测定的线性范围为20μg/25mL~50μg/25mL,检出限为6.57×10-1μg/25mL,回收率为98.1%~104.2%。

Based on the comparison of the infrared spectra of polyamide homologues, on the changes in the infrared spectra of deuterated and iodine-treated samples of polycaprolactam, and also on the observations of the infrared dichroism of drawn film , the main absorption bands of polycaprolactam in the region 400 cm(-1)-1400cm-1, which are rather structure sensitive, have been assigned as follows: 1370 cm-1 band-VC-N;, 1265 cm-1 and 1205 cm-1 bands-; 1170 cm-1 band-VC-N; 730 cm-1 band-γCH2 of (CH2)n w...

根据对聚酰胺类高聚物红外光谱的类比和对聚酰胺6试样进行氘化和碘处理后红外光谱的改变,以及根据对拉伸过的聚酰胺6薄膜试样的偏振红外光谱的观察,我们对聚酰胺6红外光谱中400cm~(-1)—1400cm~(-1)之间的主要吸收带,作了如下解释:1370cm~(-1)吸收带为ν_;1265cm~(-1)和1205cm~(-1)吸收带为δ_+ν_;1170cm~(-1)吸收带为ν_;730cm~(-1)吸收带为γ_(CH_2)[当(CH_2)_n的n≥4时];690cm~(-1)吸收带为δ_;580cm~(-1)吸收带亦为δ_。

第21/23页 首页 < ... 15 16 17 18 19 20 21 22 23 > 尾页
推荐网络例句

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.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。

There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.

双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。