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standard samples
相关语句
  标准样品
    Assessment on Low Concentration Nitrobenzene Standard Samples
    低浓度硝基苯标准样品的考核
短句来源
    The coefficients of variation of the method are 1.97% for As and 1.56% for Sb. According to the test result of 8 standard samples as drainage sediments (GSD) collected by the Geological Ministry, quality is in accord with the demands.
    变动系数分别为砷1.97%,锑1.56%,经地质矿产部八个GSD水系沉积物标准样品检验,质量符合要求。
短句来源
    The test results show that the checkout limit is 0.12μg·g -1 (k=3), and the precision (RSD) is 4.6%, and the labeled rates of recovery ranges in 98~106%, and determination data of river system deposit standard samples GSD 5, GSD 6 are coincident with the recommended values.
    实验表明 :该法的检出限 (K =3)为 0 .12μg· g-1,精密度 (RSD)为4.6 % ,加标回收率为 98~ 10 6 % ,对水系沉积物 GSD5、GSD6标准样品测定结果与推荐值吻合。
短句来源
    For the standard samples of 5 00 mg/L boron in five laboratories, the repetitively relative standard deviation was 3 4%, reappearance relative standard deviation was 3 6%.
    5个实验室对 5 0 0mg/L硼标准样品测得重复性相对标准差为 3 4% ,再次性相对标准差为 3 6% ;
短句来源
    In this study, for solid standard samples, the method exhibited a linear response up to 120 mg CaCO3 with sensitity of 0.02 mg; and in the case of water samples, these indices were 36.4 mmol/L NaHCO3 with 3 mmol/L.
    实验对固体和液体标准样品的线性检测范围分别为120 mg的CaCO3和36.4 mmol/L的NaHCO3,灵敏度分别为0.02 mg和3 mmol/L.
短句来源
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  标准样
    The standard samples of 0 029 mg/m 3 trichloroethylene and 0 056 mg/m 3 tetrachloroethylene were titrated five times repeatedly. Their relative standard deviations were 5 7% and 1 5% respectively. In sampling analysis for the practical samples, the recovery rate of trichloroethylene was 90%~110%, tetrachloroethylene was 94%~108%.
    对 0 0 2 9mg/m3 三氯乙烯和 0 0 5 6mg/m3 四氯乙烯标准样作重复 5次测定 ,其相对标准差分别为 5 7%和 1 5 % ,并在实际样品中进行加标回收试验 ,回收率三氯乙烯在 90 %~ 110 %、四氯乙烯在 94%~ 10 8%之间。
短句来源
    This method has been applied to the determination of trace bismuth in GSD standard samples with satisfaction.
    经GSD(水系沉积物I级标准样)系列标准样分析验证,结果可靠。
短句来源
    With standard samples of quality control in the test, the calibration curves are chosen. For the population parameter of intercepts A and slope B of calibration curves, we can estimate its interval.
    用投放质控标准样的方法来选择若干校准曲线,对这些标准曲线的截距a、斜率b的进行总体参数进行区间估计。
短句来源
    When it wasused to measure the BOD of the environmental standard samples,the relative standard deviation was about 3. 8% with the mean error about- 1. 6 %.
    测定环境标准样平均误差-1.6%,变异系数3.8%;
短句来源
    The standard samples of the metals and non-metals are separated by an eddy-current separator,and a separation efficiency of 95% can be obtained when the operation factors,mainly feeding speed,rotor speed and belt rotational speed,are proper.
    利用涡电流分选机对铜、铝和塑料的标准样进行了分选,通过调节进料速度、转子速度和皮带转速,可以得到分选效率达到95%以上。
短句来源
  “standard samples”译为未确定词的双语例句
    Determination of BSP—1 Hornblende for ~(40)Ar—~(39)Ar Method International Standard Samples
    ~(40)Ar—~(39)Ar法国际标准样BSP—1角闪石的测定
短句来源
    The maximum absorption wavelength of standard samples and samples is 264 nm.
    结果表明油烟标准品和样品的最大吸收波长均为264 nm;
短句来源
    if a flow of0.5L/min lasts for thirty minutes,the sample collection is98%and the minimum detection limit is0.073mg /m 3 ; the recovery of the added standard samples is90.0%~97.3%.
    结果表明,以0.5L/min流量采气,采集30min时,采样效率可达98%,最低检出限为0.073mg/m3,加标回收率为90.0%~97.3%。
短句来源
    The recovery of the liquid-liquid extraction with standard samples are generally smaller than 65%,while those of the later with that all vary from 70% to 120%.
    在加标回收实验中,液液萃取法的加标回收率普遍低于65%,不符合US EPA标准(70%~130%),而C18固相膜萃取法的加标回收率都在70%~120%之间,符合US EPA标准;
短句来源
    Qualitative and Quantitative Analyses of Major Constitution of PCB_3 and PCB_5 Standard Samples
    三氯、五氯联苯标准品主要组分的定性定量分析
短句来源
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  standard samples
A method is developed for the separate determination of aluminum and beryllium using cellulose as the support; the method was used for the analysis of real samples and tested with standard samples.
      
IUPAC Recommendations for Reference Standard Samples in pH Measurements
      
Designing of Standard Samples for Determining the Sensitivity of Eddy-Current Devices to the Metal Inclusion Content in a Parama
      
The reasons of the wide propagation and the high effectiveness of using standard samples of magnetically soft materials are explained.
      
A numerical analysis of these errors is performed using standard samples as examples.
      
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The separation factor of oxygen-18 for isotope exchange reaction between CO2 and H2O at 25℃ was determined to be α = 1.0411±0.0002. The value agrees with that obtained by S. Epstein within experimental error.A set of standard samples was used to calibrate the mass spectrometer. The bias correction K for our mass sepectrometer MAT-CH5 was found to be 1.012±0.001.

H_2O和CO_2间25℃时同位素交换反应的分离系数测定为α=1.0411±0.0002。此值和S.Eps-tein的测定结果在误差范围内相符。使用了一套标准水样校正了质谱计。实验中使用的CH5型质谱计的校正系数为1.012±0.001。

After the Sample is decomposed by hydrochlorine, the content of Aluminumand Manganese dioxide are determined by complexometric titration. The inter-ference in the determination may be extinguished by adding the Amonium fluorineunder the certain condition. When Aluminum is determined by this mothod, Therelative error is 1.32%. Since method oneself has systematic error, The calibrationcoefficient which is obtamed from the parallel test using standard sample is 1.013.The aecuracy of the determination...

After the Sample is decomposed by hydrochlorine, the content of Aluminumand Manganese dioxide are determined by complexometric titration. The inter-ference in the determination may be extinguished by adding the Amonium fluorineunder the certain condition. When Aluminum is determined by this mothod, Therelative error is 1.32%. Since method oneself has systematic error, The calibrationcoefficient which is obtamed from the parallel test using standard sample is 1.013.The aecuracy of the determination can be risen by using the calibration coeffic-ient. The standard deviation obtained by this method is 0.05%. The relativestandard deviation is 0.19%. The relative error in determining Manganese dioxideby this method is 0.12%. The stardard deviation is 0.20%. The relative standarddeviatiou is 0.30%. They completely meet the needs for analyses.

试样用盐酸分解后,采用络合滴定法分别测定其中铝和二氧化锰的含量。测定时的相互干扰可在一定条件下用氟化铵析出法消除。本法测铝的相对误差为1.32%。方法本身有系统误差,用标样进行对照试验测得校正系数为1.013。使用校正系数可提高测定结果的准确度。本法的标准偏差为0.05%,相对标准偏差为0.19%。本法测二氧化锰的相对误差为0.12%,标准偏差为0.20%,相对标准偏差为0.30%。它们均完全符合分析要求。

The samples to be tested were ground throughly.Acertain amount of the samples was accurately weighted and dilutedto definite volume with de-ionised water.While stirring,20μl of theslurry was pipetted into a graphite furnace and determined directlywith zeeman effect background correction.This is a rapid and pollu-tion-free method.The results thus obtained of the standard sample ofsediment (81-101~#) determined agree with the certified values and therelation standard veriation is less than...

The samples to be tested were ground throughly.Acertain amount of the samples was accurately weighted and dilutedto definite volume with de-ionised water.While stirring,20μl of theslurry was pipetted into a graphite furnace and determined directlywith zeeman effect background correction.This is a rapid and pollu-tion-free method.The results thus obtained of the standard sample ofsediment (81-101~#) determined agree with the certified values and therelation standard veriation is less than 5%.

样品经充分磨碎后,准确称取少量用去离子水稀释成一定体积。在搅拌状况下,吸取20μl泥液于石墨炉,用塞曼效应扣除背景吸收值进行直接测定。这是一种快速、无污梨的测定方法。用本法测定河流沉积物标准物质(81—101~#)所得结果与标准值一致,变异系数小于5%。

 
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