硼氢化钾

以HNO3H3PO4H2O分解样品，选用20%的磷酸作反应介质；硼氢化钾浓度控制在2%。

Thus , in a conical flask with small funnel , sample is decomposed by HNO_3-H_3PO_4-H_2O_2 , using phosphoric acid of 20 % as reaction medium , concentration of potassium borohydride is controlled at 2 % .

研究了硼氢化钾－硝酸银分光光度法测定3861双金属重整催化剂中砷含量时共存组分的影响.讨论了硫脲络合掩蔽剂的用量及加入顺序.消除了2mg铂的干扰；

Determination of arsenic in 3861 bimetallic reforming catalyst by potassium borohydride-silver nitrate spectrophotometry is described , the influence of coexistence components on this method are discussed .

以涂敷二氧化钛（TiO2）的蜂窝状堇青石（2MgO2.Al2O3.SiO2）为载体，用水热合成法负载铁盐，经500℃焙烧及硼氢化钾（KBH4）浸渍后，合成了Fe/TiO2/堇青石催化剂。

Fe / TiO2 / cordierite catalyst was synthesized with TiO2-coated cordierite as a carrier , supporting iron by hydrothermal synthesis , then baking at 500 ℃ and soaking in kalium borohydride ( KBH4 ) .

硼氢化钾还原-分光光度法测定植物性食物中的硒

Spectrophotometric Determination of selenium in the vegetable food with potassium borohydride reduction

硼氢化钾&铜试剂银盐法测定咸鱼中的砷

Determination of Arsenic in Brinish Fish by Potassium Borohydride-cupron Silver Salt Method

硼氢化钾在新香料合成中的应用

Application of potassium borohydride in the synthesis of aroma chemicals

硼氢化钾对酯和羧酸的还原反应的研究

Study on the Experiment of Ester and Carboxylic Acid Reduction with Potassium Borohydride

硼氢化钾对β-硝基苯乙烯的选择性还原

Selective Reduction of β - Nitrostyrene with Potassium Borohydride

研究了硼氢化钾对酯和羧酸的还原作用。

The effect of potassium borohydride on ester and carboxylic acid reduction was introduced .

指出了现行文献中对硼氢化钾（钠）还原酯和羧酸作用的欠妥说法。

It was pointed out that the effect was not properly explained in the present textbooks .

硼氢化钾-高锰酸钾滴定法测铁研究

Determination of iron kbh_4-kmno_4 titration method

冷原子荧光光度法测定人奶中的汞&硼氢化钾直接还原法

Determination of Mercury Content in Human Milk by Cold Atomic Fluorescence Spectrometry with Potassium Borohydride Reduction

研究了以硼氢化钾修饰的雷尼镍催化剂催化松油醇加氢制备二氢松油醇的反应。

The hydrogenation of terpineol to dihydroterpineol catalyzed by Raney Nickel modified by potassium borohydride was studied .

硼氢化钾还原-原子荧光光谱法测定室内装饰装修用涂料中汞

Determination of Mercury in Coatings of Indoor Decorating and Refurbishing Materials by Potassium Borohydride Reduction-Atomic Fluorescence Spectrometry

在硼氢化钾存在的情况下，钼酸钠就能催化乙炔还原为乙烯的反应。

In the presence of potassium borohydride , sodium molybdate can catalyze the reduction of acetylene to ethylene .

结果表明，还原剂的选择和搅拌强度对催化剂的活性有明显影响，与硼氢化钾和葡萄糖相比，甲醛是一种优良的制备银催化剂的还原剂；

Compared with KBH and glucose , formaldehyde is a good reducing agent for the silver catalyst preparation .

结果革除文献中用到的有毒溶剂苯，以硼氢化钾替代了价格贵且易潮解的硼氢化钠，降低了成本；

Results Poisonous benzene was changed into chloroform and the expensive sodium borohydride was replaced with potassium borohydride .

硼氢化钾还原-气相分子吸收光谱仪测定水中的总汞及其不确定度的评定

Determination of Total Mercury in Water by Potassium Hydroborate Reduction-Gas Molecules Absorption Spectrometer and Evaluation of Its Uncertainty

接着用硼氢化钾还原和乙酰化反应得4-甲基-4-苯基-2-戊醇乙酸酯。

The ketone was treated with reduction by using potassium borohydride and acetylation to 4-methyl-4 - phenyl - 2-pentyl acetate .

认为一些金属离子、非金属离子在酸性介质中与硼氢化钾（钠）作用及金属锌等强还原剂作用生成氢化物。

The authors considered that some metallic and nonmetallic ions acted with boron hydrogen Potassium in acid media and formed hydride .

通过对反应条件的改进，以硼氢化钾/三氯化铈代替氢化锂铝，不仅降低了成本，而且简化了操作；

KBH_4 / CeCl_3 was used as reduction reagent replacing LiAlH_4 , which reduced the cost and simplified the experiment process .

在盐酸介质中，以硼氢化钾作还原剂，将汞转化为汞化氢。

This mathod is to transform mercury into mercury-hydride in a media of hydrochloric acid using potassium borohydride as a reducing agent .

以乙二醇为溶剂、硼氢化钾为还原剂制备了溶剂稳定的铜纳米颗粒。

Solvent-stabilized copper nanoparticles were successfully synthesized by using a system of glycol with a reducing agent of KBH_ ( 4 ) .

考虑到经济性问题，提出了由硼氢化钾或钠作为还原剂的合成路线。

Based on consideration of economical problem , a synthetic route by sodium or potassium borohydride as reducing agent is put forward .

使用硼氢化钾处理粗山梨醇，能够降低山梨醇的还原糖含量，提高了产品质量；

The treatment of raw sorbierite using potassium borohydride can decrease the content level of reducing sugar and raise the product quality .

方法：使用硼氢化钾代替锌汞齐还原羰基，通过乙酰化反应对丹参素及其衍生物进行结构修饰。

Methods : Carbonyl group was reducted with potassium borohydride in stead of zinc amalgam ; the danshensu and its derivatives were acetylated .

本文介绍了硼氢化钾还原氢化法&原子吸收快速测定海洋沉积物和悬浮物中痕量砷的方法。

A method for rapid determination of Arsenic in Marine sediments and suspended matters by hydride generation and atomic absorption spectrophotometer is described .

极低浓度硼氢化钾还原连续流动冷原子荧光法测定土壤中痕量汞

Determination of Trace Mercury in Soil by Continuous Flow Cold Atomic Fluorescence Spectrometry Using Extremely Low Concentration of Potassium Tetrahydroborate as Reducing Agent

荧光测量是建立在用硼氢化钾还原砷，并将砷的气体氢化物导入电加热石英管中原子化的基础上。

Fluorescence measurement is based on the reduction of arsenic by potassium borohydride and introduction of its gaseous hydride into the electrically heated silica tube .

用微量移液器加入待测溶液和硼氢化钾溶液，在反应杯中发生氢化物并导入石英管进行原子化。

Sample and KBH_4 solutions are introduced into the reaction cup with micro pipettes sequentially , then hydride generated is guide into quartz cell for atomization .