- 更多网络例句与标准溶液相关的网络例句 [注:此内容来源于网络,仅供参考]
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In order to provide a suitable 237Np reference solution for nuclear fuel reprocessing and environmental science, a radioactivity reference solution of neptunium-237 in 0.5 mol/L HNO3 is investigated. It is prepared by dissolution of a neptunium oxide stock from plant.
为了给乏燃料后处理工艺和环境科学研究提供合适的237Np标准溶液,研制了以0.5mol/L HNO3为介质的镎-237放射性活度标准溶液。
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Procedure—Separately add 6.0mL of Ammonium Citrate Solution and 3.0mLof Potassium Cyanide Solution to the Standard solution and the Test solution.
步骤-将6.0ml的柠檬酸铵溶液和3.0ml的氰化钾溶液分别同时加入至标准溶液和测试溶液中。
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The results showed that the preparation of standard solutions, the fitted linear regression equation for the calibration curve and the volume of sample solution were the main sources of uncertainties.
结果表明:标准溶液的配制、标准曲线拟合线性方程及样品溶液的定容是不确定度的主要来源。
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By synthetically analysizing the physical and chemical properties of all components and particle size, the content of F2641 in the JOB-iC is determined by gravimetric analysis after F2641 is seperated from HMX,TATB and PNP through ? alkali reflux. Determination conditions is set as follows the sample is boilingly refluxed for six hour in a constant temperature bath after adding lOOm! 8.0 ?? 0.1% NaOH. The solvent DMF saturated by TATB is used for extracting HMX,F21 and PNP from the sample and TATB is seperated by crucible filter G4. The mass precent of TATB is determined by extraction fractionation. The mass percent of PNP is measured by multiwavlength linear regression ultraviolet spectrophotometry. The testing conditions are set as follows:multiwavlength constitution: X=267nxn, 275nm, 283nm, 29mm, 299nm,the application scope of the Lambert-Beer law: the concentration of PNP is O.005?0.O25mgIml, the concentration of HMX is 0.060.3Omg/ml,absorption coefficents of PNP and HMX are solved by the slope of linear regression curve of absorbency- concentration of standard solution of PNP and HMIX for measuring wavelengthes,on the basis of the Lanibert-Beer law and absorbancy additivity principle, the slope of linear regression curve of A/E(1) and E1 of PNP and HMX solution is regarded as the concentration of PNP in the solution.
根据传爆药中各组分的物理、化学性质及主体炸药的粒度大小,进行综合分析,确定了采用碱回流重量法测定JOB-1C 中F_(2641)的含量,测定条件:加入100ml浓度为8.0±0.1%的氢氧化钠,在恒温水浴中煮沸回流6h;采用溶剂萃取法测定JOB-1C中TATB的含量,选择TATB饱和的二甲基甲酰胺为萃取溶剂,用G4坩埚式过虑器进行萃取分离;采用多波长线性回归紫外分光光度法测定JOB-1C中PNP的含量,通过实验确定了多波长组合:λ=267nm,275nm,283nm,291nm,299nm;朗波—比耳定律的适用范围为PNP浓度:0.005~0.025mg/ml,HMX浓度:0.06~0.30mg/ml;在测定波长下,对PNP、HMX标准溶液的吸光度—浓度进行线性回归,由回归曲线的斜率得出PNP、HMX的吸收系数;根据朗波—比耳定律和吸光度加和性原理,在测定波长下,对PNP、HMX 两组分混合溶液A_i/E_HMX(i与E_PNP(i/E_HMX(i进行线性回归,回归曲线的斜率即为混合溶液中PNP的浓度。
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The suitable detection wavelength was selected through qualitative determination of wave spectrum. With 95% ethanol as the reference solution, the standard curve was drawed with a series of different concn. of standard solution of chlorogenic acid, and the Absorbance of extracting solution was determined and the chlorogenic acid content in filtrate was calculated.
波谱定性检验选择适宜的测定波长,以95%乙醇为参比溶液,用配制好的一系列不同浓度的绿原酸标准溶液绘制标准曲线,测定提取液的吸光度,计算滤液中绿原酸的含量。
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Its principle is to use the acid standard solution or the alkali standard solution to titrate the opposite acid-base material, by which the content of measured material is calculated according to standard solution's consumption.
其原理是用酸标准溶液或碱标准溶液来滴定具有相反酸碱性的物质,根据标准溶液的消耗量来计算被测物质的含量。
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The value of reference solution is measured by gravimetric titrimetry in this paper. The process of evaluating uncertainty is established according to JJF1059-1999 Evaluation and Expression of Uncertainty in Measurement.
本文应用质量滴定法为硝酸银标准溶液定值,按照国家颁布的国家计量技术规范《测量不确定度评定与表示》JJF1059——1999的规定建立了硝酸银标准溶液不确定度的评定步骤。
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Just prior to the analysis, prep a re the test solution by adding 0.5ml of the bromophenol blue indicator solution to each 100ml of the aqueous acetone solution and titrating with 0.01 N HCl or 0.01 N NaOH until the test solution is just yellow in color.
分析前准备好测试溶剂,100ml含2%水的丙酮加到锥形瓶中,加0.5ml 1%溴酚蓝水溶液指示剂,用0.01N NaOH溶液滴定至绿色或蓝色,然后用0.01N 盐酸标准溶液滴定至刚好呈黄色
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The grade and quality of standard material is important in the course of certifying standard solution .
标准溶液定值过程中,标准物质的等级和质量是确保标准溶液化学计量准确的关键。
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Since tests prescribed in monographs have been developed using thioacetamide reagent R, if sodium sulphide solution R1 is used instead, it is necessary to include also for methods A and B a monitor solution, prepared from the quantity of the substance to be examined prescribed for the test, to which has been added the volume of lead standard solution prescribed for preparation of the reference solution.
各论中规定使用硫代乙酰胺试液,因此若要改用硫化钠溶液,无论是方法A还是方法B都应制备控制溶液。控制溶液的制法:取规定量的供试品,加入制备对照溶液所需的铅标准溶液。monograph可以翻译成&各论&,即具体品种的药典标准。
- 更多网络解释与标准溶液相关的网络解释 [注:此内容来源于网络,仅供参考]
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buret:滴定管
滴定(Titration)是将已知准确浓度的试剂溶液(标准溶液)通过滴定管滴加到被测物质定剂由滴定管(buret)加到被测溶液中的过程叫滴定;加入的滴定剂与被滴定物质按照化学计往需要借助指示剂(indicator)颜色的变化.
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capillary:毛细管
将一个毛细管(capillary)浸入溶液,取约3mm溶液,布于一薄层色谱板(TLC 板TLC plate). 用同样方法将起始物质布于另一TLC板作为参比物. 用1:6乙酸酯-庚烷(acetate-heptane)洗脱TLC板,洗脱后的TLC板可在UV光(254配合物中氨的分析 用移液管吸取 0.1 M HCl 标准溶液20 mL,
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STANDARD LIQTOR DEMARCATE:标准溶液标定
9.7 通讯设置 COMMUNICATION SETTING 13 | 9.8 标准溶液标定 STANDARD LIQTOR DEMARCATE 13 | 9.9 校正设置 CALIBRATION SETTING 1 4
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standard set-up:标准装置
standard rocking microtome 标准摇动式切片机 | standard set-up 标准装置 | standard solution 标准溶液
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stoichiometric point:化学计量点
在滴定分析中,通常将已知准确浓度的试剂溶液称为"滴定剂",把滴定剂从滴定管加到被测物质溶液中的过程叫"滴定"(titrate),加入的标准溶液(已知浓度的溶液)与被测物质定量反应完全时,反应即达到了"化学计量点"(stoichiometric point).
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titrate:滴定
在滴定分析中,通常将已知准确浓度的试剂溶液称为"滴定剂",把滴定剂从滴定管加到被测物质溶液中的过程叫"滴定"(titrate),加入的标准溶液(已知浓度的溶液)与被测物质定量反应完全时,反应即达到了"化学计量点"(stoichiometric point).
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titration:滴定
实验1-23 血清丙氨酸氨基移换酶(ALT)的测定"滴定"(titration)是将已知准确浓度的溶液--标准溶液通过滴定管滴加到待测溶液中的过程. 待"滴定"进行到化学反应按计量关系完全作用为止,然后根据所用标准溶液的浓度和体积计算出待测物质含量的分析方法称为滴定分析法.
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volumetric solution:定规液;标准溶液
容量瓶 volumetric flask | 定规液;标准溶液 volumetric solution | 容量水势;容量含水度 volumetric water potenital
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standard volumetric solution:标准溶液
standard matching solution,标准对照液 | standard volumetric solution,标准溶液 | standard volumetric solution,标准溶液
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standard reduction potential:标准还原电势,标准还原电位
standard molar entropy 标准摩尔熵 | standard reduction potential 标准还原电势,标准还原电位 | standard solution 标准溶液