• 标准分析方法中,采用原子荧光分光光度法测定水中所用标准溶液系列必须每次配制,给工作带来很大的不方便。

    For the standard analytical method, the series of standard solution for the determination of As, se and Hg in water by atomic fluorescence spectrophotometry must be prepared for every test.

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  • 国家名优茶水渗出物标准38%,“黔茶”牌凤冈有机系列高达42%以上,水渗出物为全国所有绿茶

    National standards for diffusion of high quality teas is 38% , while the Phoenix Hills ZnSe-rich Organic Tea Series branded "Qin Tea" can reach at 42%, the highest among all green teas in China.

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  • 1991年资源综合开发植物蛋白系列产品保健产品、富矿泉水,富

    In 1991, selenium resource development include rich selenium plant albumen serial products, health product, rich selenium tea, selenium mineral water synthetically 1991, rich selenium cigarette.

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  • 所合成系列芳香化合物电极上组装形成单分子膜。

    The heterocyclic aromatic selenium compounds synthesized here could all form self-assembled monolayers on gold electrode.

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  • 目前合成方法尚有很多不足之处,我们在总结前人经验的基础格氏试剂反应物,直接卤代烯烃反应制得一系列醚。

    Based on the former research works, we used magnesium selenolate as reactant to react with RX or styrene to synthesize a series of selenide. Followings are the main research results:1.

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  • 目前合成方法尚有很多不足之处,我们在总结前人经验的基础格氏试剂反应物,直接卤代烯烃反应制得一系列醚。

    Based on the former research works, we used magnesium selenolate as reactant to react with RX or styrene to synthesize a series of selenide. Followings are the main research results:1.

    youdao

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