本文将锗一水杨基荧光酮一溴化十六烷基三甲基铵胶束五色体系应用于流动注射分析,建立了测定微量锗的快速方法。
A new method for the flow injection spectrophotometric determination of germanium using salicylfluorone in the presence of cationic surfactant cetyltrimethylammonium bromide has been developed.
如同所有的电视一样,液晶显示器的塑料外壳经过溴化阻燃剂处理,内部线路用了各种有毒重金属,如镉,铬,锑,铍。
As with all TVs, LCDs have plastic shells treated with brominated flame retardants and wiring that has various toxic heavy metals such as cadmium, chromium, antimony and beryllium.
对直接溴化法合成六溴苯作了系统的研究,并对文献方法进行了一系列的改进。
A detailed study for the synthesis of hexabromobenzene by means of direct bromination has been conducted, and some modifications to the classical method were proposed.
制备了一种新型的溴化试剂——载溴阴离子交换树脂。
十六烷二甲基苯氧乙基溴化铵的乳化能力、起泡力和泡沫稳定性都比较弱,具有一定的消泡和抑泡作用。
The emulsibility, producing bubble ability and the foam stability for PDPB are weaker, and it has definite effect on disappeared and restrained bubbles.
分析了燕化化工一厂目前的供冷方式及存在的问题,对单效型溴冷机的技术参数、年运行费用等进行了全面的分析比较。
In this paper, the way of providing cold energy and the existing Problem were discussed, the specification and annual operation cost of the single-action on liBr-Refrigeratory were thoroughly studied.
第一部分是以基于锌粉-溴丙炔体系的、非对映选择性的炔丙基化反应为关键步骤,合成天然及类天然产物。
The first part describes the syntheses of natural products and natural-like products by means of diastereoselective propargylation as the key step.
在此基础上,研究了溴化Q0的合成方法,形成了一条新的、简便的溴化Q0的合成路线,收率达86%以上。
On the base of the results, a new synthetic route of brominated Q0 was reported. The method was more favorable for the preparation of Q0, and the yield was above 86%.
建立了一种用带有能谱仪的扫描电子显微镜(SEM -EDXA)测定麦草细胞壁木素分布的方法。讨论了溴化、切片厚度和样品座对定量测定的影响。
A method has been developed for the determination of lignin distribution in wheat straw cell walls by scanning electron microscopy coupled with energy dispersive X-ray analysis (SEM-EDXA) technique.
第一种方法:用液溴作芳化试剂,将4-氯代四氢苯酐芳化为4-氯代苯酐,收率达到89%,纯度大于99%;
The first route was using the liquid bromine to aromatize the 4-chlorotetrahydrophthalic anhydride to 4-chlorophthalic anhydride, The yield was 89%, and the purity was more than 99%.
在以四丙基溴化铵为模板剂的廉价法TS-1分子筛合成中,抑制非骨架钛的形成是一大挑战。
Non-framework titanium species are the undesirable companions in the synthesis of TS-1 which used tetrapropylammonium bromide as cheap template.
研究了硝酸钠存在下,溴化十六烷基吡啶-溴化钾体系浮选分离铂的行为及与一些金属离子分离的条件。
The floatation separation behavior of Pt(IV) by KBr-Cetylpyridinium bromide System in the presence of NaNO3 and the conditions for the separation of Pt(IV) from other metal ions were studied.
研究了硝酸钠存在下,溴化十六烷基吡啶-溴化钾体系浮选分离铂的行为及与一些金属离子分离的条件。
The floatation separation behavior of Pt(IV) by KBr-Cetylpyridinium bromide System in the presence of NaNO3 and the conditions for the separation of Pt(IV) from other metal ions were studied.
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