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absorbance unit
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  吸光度单位
     When chloride concentrations are 5 ppb and 10 ppb, the standard deviations of six analytical results are 0.003 and 0.002 (absorbance unit) respectively.
     氯离子浓度为5PPb和10PPb时,六次分析结果的标准偏差分别为0.003和0.002(吸光度单位)。
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  “absorbance unit”译为未确定词的双语例句
     From the results in eleven times determination of 1 ml aliquot of 2 μg of nitrite, the method gives a mean absorbance value with a standard deviation of 1.14×10~(-3) absorbance unit and relative standard deviation of 0.22%. The method is satisfactory for analysing nitrite in waters.
     亚硝酸盐氮含量为2μg/ml时,11次平行测定的标准偏差为1.14×10~(-3),相对标准偏差为0.22%,该方法用于湖水、河水、污水等水样中亚硝酸盐氮的分析,获得满意的结果。
短句来源
     The absorbance unit(ABSU) for ACS group and UA group were significantly greater than it for non-ACS group(P﹤0.01). While there were no siginificantly difference between MI group and UA group(P=0.175). And even adjusted the concentration ofalbumin, the results were similar.
     组间白蛋白-钴结合实验检测结果比较,吸光度值在急性冠脉综合征组(包括不稳定性心绞痛组和心肌梗死组)均显著高于非急性冠脉综合征组(P<0.01),而不稳定性心绞痛组和心肌梗死组比较,差异无统计学意义(P=0.175)。
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  相似匹配句对
     Stroke Unit
     卒中单元
短句来源
     Photosynthetic unit
     光合单位
短句来源
     ABSORBANCE IN TR-LCC
     TR-LCC中的吸光度
短句来源
     Absorbance and Kinetics of Photopolymerization
     吸光度与光聚合动力学
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  absorbance unit
When 100?μL of a test solution was injected, the calibration graph was linear up to 240?pg for nickel(II), and the detection limit defined as three times the standard deviation of the reagent blank was 0.8?pg at 0.001 absorbance unit full scale.
      
The mean sensitivity for the complex, KCrIII [Fe(CN)5OH] is 1.86μg/ml/0.015 absorbance unit with an accuracy of 0.5% at 3-ppm level.
      
RESULTS: The mean percentage of total time less than 0.14 for use of the bilirubin absorbance unit was 12.4% in group B and 64.0% in group A.
      
With detector sensitivity set at 0.005 Absorbance Unit Full Scale, samples as little as 50 μl are sufficient to carry out the determination.
      
The apparent molar absorptivities and Sandell's sensitivities (in l mol-1 cm-1 and ng cm-2 per 10-3 absorbance unit, respectively) are 2.8×103 and 118.2 using PMA as oxidizing agent and 2.16×103 and 153 using MPA for the same purpose.
      
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This paper studies the method of determining trace chloride in high purity power station waters, in which lead phosphate is used as load body for coprecipirating concentrated chloride. After speed centrifugation, the precipitate is dissolved with iron (Ⅲ) nitrate perchloric acid and the mercury (Ⅱ) thiocyanate-methanol solution is added, and then spectrophotometric determination is undertaken. In this paper, the principles and analytical conditions of this method are provided. The sensitivity of this method...

This paper studies the method of determining trace chloride in high purity power station waters, in which lead phosphate is used as load body for coprecipirating concentrated chloride. After speed centrifugation, the precipitate is dissolved with iron (Ⅲ) nitrate perchloric acid and the mercury (Ⅱ) thiocyanate-methanol solution is added, and then spectrophotometric determination is undertaken. In this paper, the principles and analytical conditions of this method are provided. The sensitivity of this method is 0.0026 absorbance/ppb cl~-, the concentration of detection limit is 2 ppbcl~-. When chloride concentrations are 5 ppb and 10 ppb, the standard deviations of six analytical results are 0.003 and 0.002 (absorbance unit) respectively. The recoveries of determing demineralized water samples are 88-98%. The apparatus used in this method are simple and the analytical procedures are convenient. The experiments verify that this method is of practical significance for determining trace chloride in high-purity waters of power station.

本文研究以磷酸铅盐作为载体共沉淀富集氯离子,高速离心分离后,用硝酸铁—高氯酸溶液溶解沉淀,加硫氰酸汞—甲醇溶液分光测定火力发电厂高纯水中痕量氯离子的方法。文中论述了本方法的原理和分析条件。方法的灵敏度为0.0026/PPbCl~-;检测限浓度为2PPbCl~-。氯离子浓度为5PPb和10PPb时,六次分析结果的标准偏差分别为0.003和0.002(吸光度单位)。测定除盐水样的回收率为88~98%。本方法所用仪器简单,分析手续方便。实验证明;本方法对于测定火力发电厂高纯水中痕量氯离子具有实用价值。

A new sensitive method for the determination of trace gold was described.Phenosafranine reacts with bromaurate to form an association complex having an absorption maximum at 527 nm.The apparent ε value at 527 nm is 5.2×10~4 and the Sandell sensitivity is 3.8×10~(-3) μg/cm~2.The complex can be extracted into 10 ml of isoamylacetate within 1 min.Optimum conditions for the extraction were found to be 1.6N in sulfuric acid,0.015M in sodium bromide and 0.03% of phenosafranine. Beel′s law is obeyed for 0 to 20 μg...

A new sensitive method for the determination of trace gold was described.Phenosafranine reacts with bromaurate to form an association complex having an absorption maximum at 527 nm.The apparent ε value at 527 nm is 5.2×10~4 and the Sandell sensitivity is 3.8×10~(-3) μg/cm~2.The complex can be extracted into 10 ml of isoamylacetate within 1 min.Optimum conditions for the extraction were found to be 1.6N in sulfuric acid,0.015M in sodium bromide and 0.03% of phenosafranine. Beel′s law is obeyed for 0 to 20 μg of gold per 10 ml.The colour of the extract is stable for up to 4 hr at room tem erature.The constituent ratio of the complex (Au to phenosafranine) is 1:1.From the 24 results by 10 ml aliquot of 10 μg of gold,the method gives a mean absorbance value of 0.524 with a standard deviation of 4.4×10~(-3) absorbance unit and a coefficient variation of 0.84%.And it has been used trially in analysis of ores,anode mud and copper-base alloys.

本文研究了酚藏花红阳离子与溴金酸络阴离子在硫酸介质中形成红色离子缔合物的条件及组成,从而建立了萃取比色测定微量金的新方法。已将本法应用于矿石、阳极泥和粗铜中微量金的测定。

Anew spectrophotometric method for the determinat ion of trace nit rite was described. The method is based on a reaction of nitrite with Safranine Tto form red colour complex with an absorption maximum at 600nm. The apparent ε value at 600 nm is 7.39×10~31.mol~(-1).cm~(-1) and Sandell sensitivity is 9.34×10~(-3) μg/cm~2.Beers law is obeyed for 0 to 3 μg/ml of nitrite. The colour is stable for up to 6 hours at room temperature. From the results in eleven times determination of 1 ml aliquot of 2 μg of nitrite,...

Anew spectrophotometric method for the determinat ion of trace nit rite was described. The method is based on a reaction of nitrite with Safranine Tto form red colour complex with an absorption maximum at 600nm. The apparent ε value at 600 nm is 7.39×10~31.mol~(-1).cm~(-1) and Sandell sensitivity is 9.34×10~(-3) μg/cm~2.Beers law is obeyed for 0 to 3 μg/ml of nitrite. The colour is stable for up to 6 hours at room temperature. From the results in eleven times determination of 1 ml aliquot of 2 μg of nitrite, the method gives a mean absorbance value with a standard deviation of 1.14×10~(-3) absorbance unit and relative standard deviation of 0.22%. The method is satisfactory for analysing nitrite in waters.

藏红T与亚硝酸根在0.1mol/l的盐酸溶液中可形成红色配合物,在600nm处有最大吸收。ε600nm=7.39×10~3l·mol~(-1)·cm~(-1),桑德尔灵敏度为9.34×10~(-3)μg/cm~2。亚硝酸盐氮含量在0~3μg/ml范围内遵守比尔定律。显色液在室温下避光放置可稳定6小时以上。亚硝酸盐氮含量为2μg/ml时,11次平行测定的标准偏差为1.14×10~(-3),相对标准偏差为0.22%,该方法用于湖水、河水、污水等水样中亚硝酸盐氮的分析,获得满意的结果。

 
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