碘的

In the hydrocarbylation reaction,bromoethane was used instead of the expensive iodoethane with the yield 90% and the cost was reduced.

在烃化反应中，以溴乙烷代替价格昂贵的碘乙烷，收率达90％，降低了生产成本。

Iodomethane is a widely used and important intermediate in the fine chemical industry.

碘甲烷作为重要的精细化工中间体在实验室、工业生产中应用广泛。

This paper optimized the reaction condition for alcohol-halogen acid method and dimethyl sulfate method based on reviewed the main means which iodomethane can be synthesized.

在综述碘甲烷常用制备方法的基础上，对醇氢卤酸法及硫酸二甲酯法进行了条件优化及对比总结。

An unreported compound 2-cyclopropylbenzimidazolium salt was obtained from 2-cyclopropyl benzimidazole and iodomethane.

以邻苯二胺和环丙基甲酸为原料，以多聚磷酸为催化剂，在微波辐射下合成了环丙基苯并咪唑，用碘甲烷季胺化得到未见文献报道的环丙基苯并咪唑盐，通过苯并咪唑盐与Grignard试剂加成后水解反应制备环丙基甲基酮。

Conclusion］ the improved iodometric method can be used for rapid screening of sulfur dioxide in foods.

结论］ 改良碘量法可以作为食品中二氧化硫残留的快速筛检方法。

In Chapter 2, the principles and processes of steady-state oxygen permeation measurement and double iodometric titration are described.

第二章 详细介绍了本论文中所采用的实验方法和设备，包括稳态氧渗透测量法、双碘滴定法测量氧非化学计量、气氛淬火等。

The paper studied the assay of copper in the mixture of gold and copper with iodometric method , and the practice.

研究了采用碘量法快速测定混合金铜精粉中的铜量，并应用于实践，测定结果令人满意，可在1h内完成分析测定。

The oxygen nonstoichiometry was measured by Iodometric method.

用碘量法测量了LSFM中的非化学计量氧值。

The film-electrode method for the determination of BOD_5 was compared with the iodometric method through the precision experiment.

随着环境监测技术的发展，膜电极法测定5 d生化需氧量将逐步替代碘量法。

Methods］ improved iodometric method and gb method were used as parallel examination of sulfur dioxide in 94 water-solubility foods and 99 non-water-solubility foods.

方法］ 随机采取水溶性食品94件和水不溶性食品99件，分别用改良碘量法和国标法进行检测，比较两种方法检测食品中二氧化硫的符合性。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。