• 本文将杨基荧光酮十六烷基三甲基铵胶束五色体系应用流动注射分析,建立了测定微量锗快速方法

    A new method for the flow injection spectrophotometric determination of germanium using salicylfluorone in the presence of cationic surfactant cetyltrimethylammonium bromide has been developed.

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  • 如同所有电视液晶显示器的塑料外壳经过溴化阻燃剂处理,内部线路各种有毒重金属

    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.

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  • 直接合成苯作了系统研究对文献方法进行了系列的改进

    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.

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  • 制备新型的试剂——阴离子交换树脂

    The bromine was supported on a kind of ion exchange resin.

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  • 十六烷甲基苯氧乙基溴化能力起泡泡沫稳定性比较弱具有泡和作用

    The emulsibility, producing bubble ability and the foam stability for PDPB are weaker, and it has definite effect on disappeared and restrained bubbles.

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  • 分析厂目前供冷方式存在问题,对单效型机的技术参数运行费用进行全面的分析比较。

    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.

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  • 部分是以基于锌粉-体系、非映选择性的炔丙基反应关键步骤,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.

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  • 基础上研究Q0合成方法,形成新的、简便溴化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%.

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  • 建立带有能谱仪扫描电子显微镜(SEM -EDXA)测定麦草细胞壁分布方法。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.

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  • 种方法:作芳试剂,将4-氯代四氢苯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%.

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  • 在以四丙基模板廉价法TS-1分子筛合成,抑制骨架的形成大挑战。

    Non-framework titanium species are the undesirable companions in the synthesis of TS-1 which used tetrapropylammonium bromide as cheap template.

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  • 研究硝酸钠存在下十六烷基吡啶-溴化体系浮选分离行为金属离子分离条件

    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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  • 研究硝酸钠存在下十六烷基吡啶-溴化体系浮选分离行为金属离子分离条件

    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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