hno

A hydride generation atomic fluorescence spectrometry method was developed for the determination of trace lead in traditional chinese medicines. Samples were pretreated with a high pressure digestion using HNO 3-H 2O 2 system following the interval flow precedure.

采用HNO3-H2O2体系和高压釜消解中药样品，以AFS-2202a型双道原子荧光分光光度计和断续流动的氢化物发生法，测定了中药葶苈子和黄连中的铅。

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Nitric acid: Inorganic compound, colourless, fuming, highly corrosive liquid, chemical formula HNO 3.

硝酸: 一种无机化合物, 无色 、 冒烟 、 高度腐蚀性的液体, 化学式为HNO3.

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Glyoxal is prepared with waste liquid propellant HNO 3-27 S and ethanal.

利用报废的液体推进剂硝酸-27S和乙醛制备乙二醛.

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Sub boiling water was employed to make up of solution and ultra pure HNO 3 was used to digest samples in order to decrease blank and error.

采用亚沸高纯水配制各种溶液，使用65%的工艺超纯硝酸消化，以降低空白，减少误差。

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When Fe 3 + and UO 22 + coexist in the MMH-HNO 3 system, they accelerate the oxidization of MMH significantly.

当Fe3+与UO22+同时存在时,对含HNO3体系MMH的 氧化分解起显著加速作用.

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Carbons were altered by various methods including HNO 3 oxidation and air oxidation and treatment in inert gases of high temperature, respectively.

分别对碳进行硝酸、空气氧化及惰性气氛下高温处理。

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The extraction mechanism and separation process of lanthanum and actinium were studied in HDEHP ( kerosene )-HNO 3 system.

研究了在HNO_ 3体系中,P_ ( 204 ) 萃取La和 Ac的 机理及影响La, Ac萃取分离因素,给出了La, Ac分配的数学模型.

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Homogeneous nanoporous silica films colloidal silica derived by sol-gel process of tetraethylorthosilicate ( TEOS ) catalyzed with HNO 3.

以HNO3为催化剂,用正硅酸乙酯 ( TEOS ) 溶胶 - 凝胶工艺制备纳米多孔二氧化硅薄膜.

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A hydride generation atomic fluorescence spectrometry method has been developed for the determination of trace lead in traditional Chinese medicines. A high pressure digestion using HNO 3 H 2O 2 system was applied for the pretreatment of traditional Chinese medicine samples and the interval flow precedure was used.

应用AFS2202a型双道原子荧光分光光度计和断续流动的氢化物发生技术，采用HNO3H2O2体系和高压釜消解中药样品测定了中药党参、黄芪、巴戟天中的铅。

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