溴化钾
- 名potassium bromide
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在酸性介质中,溴化钾存在下,碘酸根对1-(2-吡啶偶氮)-2-萘酚(PAN)有褪色作用,且褪色程度与碘酸根的量有关,从而建立了碘的光度测定新方法。
In acid media and with the existence of potassium bromide , iodate radical has fading effect on 1 - ( 2-pyridylazo ) - 2-naphthol ( PAN ), whose fading degree is relevant to the quantity of iodate radical , thus new determination method of spectrophotometry is established .
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方法:采用红外分光光度法,以无水乙醇为溶剂进行重结晶,并以高纯度溴化钾压片测定红外吸收光谱。
METHODS : The infrared spectrophotometry was adopted , in which the recrystallization was carried out with the dehydrated alcohol as the solvent and with the highly pure potassium bromide tabletting as the infrared absorption spectrum .
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报道经大剂量x辐射后溴化钾单晶的喇曼测量结果。
The results of Raman measurements of KBr single crystal after long X-irradiation are reported .
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如果只进行一个鉴别检验,应当首推红外线(IR)光谱(溴化钾颗粒)。
If only one specific identity test is performed , an IR spectrum ( KBr pellet ) is preferred .
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本文报道掺铅溴化钾单晶在液氮温度下经大剂量X射线辐照后的偏振喇曼测量结果。
The experimental results of polarized Raman scattering in KBr : Pb2 + single crystal after a long X-irradiation at 77K are reported in this paper .
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本文提出了Hg()-溴化钾-结晶紫三元配合物体系光度法测定痕量汞的新方法。
The spectrophotometric determination of trace mercury with the ternary complex system of Hg (ⅱ) KBr CV was introduced .
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以0.5M溴化钾作为支持电解质。
0.5M potassium bromide was used as supporting electrolyte .
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用解谱的方法,分别从着色氯化钾和溴化钾晶体吸收光谱中合理地分解出K、F、R、M和一些其它吸收带,并精确确定这些吸收带的光谱参数。
The K , F , R , M and some other absorption bands were reasonably resolved from the absorption spectra of the colored crystals , and their spectral parameters were accurately determined by using spectral decomposition .
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在着色溴化钾晶体中产生大量F,R,M,N类和一些新的未知色心,并给出色心形成和转化机理。
A lot of F , R , M and N type and some new unknown color centers were produced in the colored ( potassium ) bromide crystals , and the formation and transformation mechanisms of the color centers were presented .
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用溴化钾压片法测定了碱金属硅酸盐玻璃的红外光谱,所得数据与低共熔组成处SiO2偏摩尔体积的急剧变化相一致。
Infrared spectra of alkali silicate glasses were studied by the KBr method . The data thus obtained agree with the abrupt changes of partial molar volume of SiO2 at eutectic compositions .
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第三步用溴化钾作漂浮密度梯度区带离心,和第四步用蔗糖密度梯度速率区带纯化所得的HBsAg光密度单位剩余为0.32%,也就是去除了99.68%杂蛋白,回收率为73.4%。
Further purification was done by KBr buoyant-zonal density gradient centrifugation , and sucrose rate-zonal density gradient . The obtained HBsAg optic density unit of the remainder was 0.32 % , i. e. 99.68 % of other proteins were removed .
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本实验利用溴酸钾与溴化钾的氧化还原反应和还原型Vc的溴氧化脱氢反应间的速度差异,使动力学分析法与示波电位新技术相结合,提出了测定痕量Vc的新方法。
A simple , intuitive , fast and sensitive oscillographic potentiometric kinetic method for the determination of ascorbic acid ( Vitamin C ), based on the rate difference between the redox reaction of bromate with bromide and the dehydrobromination reaction of ascorbic acid with bromine , is described .
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用自行研制的电注入装置,在693K温度下施加DC1200V电压、对溴化钾晶体进行电注入并使之有效着色。
Potassium bromide crystals were effectively colored electrolytically with a lab-made electrolytic apparatus at 693 K by ( applying ) a DC 1 200 V voltage .
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聚氧化乙烯在溴化钾表面吸附后的形貌研究
Study on the Conformation of Polyethylene Oxide Adsorbed on Potassium Bromide Surface
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溴化钾晶体电注入着色和光谱特性
Electrolytic Coloration and Spectral Property of Potassium Bromide Crystals
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氙离子注入氯化钾和溴化钾晶体光谱特性
Spectral Properties of Potassium Chloride and Potassium Bromide Crystals Implanted with Xenon Ions
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试剂溴化钾与工业溴化钾联合生产工艺
Combined technology for producing reagent and industrial grades KBr
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螯合树脂提纯溴化钾
The Purification of Potassium Bromide with Chelating Resin
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用36keV氙离子注入,有效地使氯化钾和溴化钾晶体着色。
Potassium chloride and potassium bromide crystals were effectively colored with 36 keV xenon ions .
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经溴化钾密度梯度超离心分离大鼠血清得到8层制品。
The ser - um could be separated into 8 layers by potassium bromide density gradient ultracentrifugation .
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溴化钾压片模具的改进与研制
Development of KBr Die
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选用3种有机溶剂甲醇、乙醇和丙酮,结晶分离水溶液中的溴化钾。
Three organic solvents , methanol , ethanol and acetone are selected to separate KBr from the aqueous solution .
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镉-溴化钾-邻菲罗啉共振光散射法测定痕量镉的研究
Determination of Trace Cadmium with Ternary Complex of Cd ~ ( 2 + ) - Bromatum Kalium-Phenanthroline by Resonance Light Scattering
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提出了一种采用红外光谱溴化钾压片法测定苯甲羟肟酸工业品纯度的方法。
A quantitative determination method of purity of industrial benzohydroxamic acid ( BHA ) by infrared ( IR ) spectrum has been developed .
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光度法测定食盐中碘&基于溴化钾催化的茜素红与碘酸钾的氧化褪色反应
It was a compound called silver iodide . Photometric Determination of Iodine in Table Salt by Oxidative Color-fading Reaction of Alizarin Red with KIO_3 Catalyzed by Potassium Bromide
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增大碘溴化钾溶液中碘溴比,将导致碘向外层的均化,使离子电导增加。
The increase of iodide-to-bromide ratio in potassium iodobromide solution results in the diffusion of iodide toward the edge band of T-Grain and the rise of its ionic conductivity .
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通过测定压力、溴化钾的溴饱和溶液吸收法、气味试验等方法可以较快地进行鉴别。
By measuring the pressure , saturated solution of potassium bromide bromine absorption method , the smell test and other methods , the mixture can be identified more quickly .
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经溴化钾压片后的红外光谱图显示在2917、2849、1716、1463、1382和720cm~(-1)处有特征性吸收峰;
Its IR spectrogram performed by potassium bromide showed characteristic absorption peaks in the wavelength of 2917 , 2849 , 1716 , 1463 , 1382 and 720cm ~ ( - 1 ), respectively .
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其它用矿物制成的药包括甘汞(氯化亚汞),泻药;溴化钾,镇静药;葡萄糖钙,用于治疗佝偻
" Other drugs made from minerals include calomel ( mercurous chloride ), a laxative ; potassium bromide , a sedative ; and calcium gluconate , used in the treatment of rickets . "
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在样品粒径小于2μm、样品与溴化钾质量比为(1~5):1000时,可获得较为理想的红外光谱图。
When the sample is pulverized into grains of less than 2 μ m and the mass ratio of the sample and KBr is in the range of 1 : 1000-5 : 1000 , a spectrum of high resolution can be obtained .