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标准样品
    Determination of Gold,silver,Copper and Zinc in Gold Standard Samples by Mylar Film-XRF
    X射线荧光光谱-点滴麦勒膜制片法测定金标准样品中金银铜锌
    Chemical Standard Samples of Iron and Steel
    钢铁化学标准样品
    Correctly using standard samples to assess measuring and analysing method
    正确使用标准样品评定测量分析方法
    Preparation and Development of Standard Samples of Tin Metallurgy in China
    我国锡冶金标准样品的研制与发展
    Standard samples preparation of long-lived nuclide ~(182)Hf for AMS
    用于加速器质谱测量的长寿命核素~(182)Hf标准样品的制备
    Assessment on Low Concentration Nitrobenzene Standard Samples
    低浓度硝基苯标准样品的考核
    The content of 41Ca in unknown sample can be obtained by measuring the 41Ca/40Ca ratio of the unknown and standard samples.
    也就是采用与标准样品对比的相对测量方法。 已知样品中稳定同位素的量,通过测量~(41)Ca与~(40)Ca比值就可以得到~(41)Ca的含量。
    Standard samples of polystyrene were adopted to correct wavelengths of the infrared spectrometer. The wavelength accuracy of the system is ±0.5 cm~(-1) and the stability is 0.8%.
    以标准样品聚苯乙烯薄膜,对红外光谱检测系统进行波长校正,校正后波长的准确度达到±0.5cm~(-1),系统的稳定性可达到0.8%。
    The main aims of this work are as follows: the first is the AMS samples preparation of ~(99)Tc, including blank samples 、 standard samples and the unknown environment samples.
    论文工作研究的主要内容包括:1)用于AMS测量的~(99)Tc样品的制备,包括:空白样品、标准样品、环境样品;
    Three columns of μ-Bondagel E-linear was connected in series and used for separation. Sodium dodecyl sulfate (2%) was used as eluent. The α, β and γ components were used as standard samples.
    使用了三根串联的μ-Bondagel E-linear柱,用2%的十二烷基硫酸钠作为淋洗剂,采用α、β和γ三种胶样作为标准样品
    It hus a good quantity re producibility, The coefficient of variation was less than ±5% for standard samples and ±10% for environmental samples.
    定量重现性好,对标准样品的变异系数在±5%以内,对环境样品的变异系数为±10%。
    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。
    By means of measuring hall effect of standard samples at low tempera-tures,the distribution of impurities on plane (111) of 〈111〉 and 〈211〉orientations are determined,which points out an effective way to prepare material with homogeneous distribution of impurities at radial orientations.
    借助于低温下标准样品的霍耳测量分析方法,测定了[111]晶向同[211]晶向(111)面上的杂质浓度分布,为制得径向上杂质浓度分布较均匀的材料指出了一条有效途径。
    Standard samples MGl-Au 07,MCM-02 and some other samples have been analyzed with satisfaction.
    通过对MGI-Au-07,MCM-02标准样品和其它样品的测定,说明应用本法可获得满意的结果。
    and ③ the representiveness of the standard samples is limited.
    ③标准样品的代表性有限。
    The method has been successfully applied to determine yttrium in the rare earth mixtures,Long Nan rare earth oxides and GSD 4,GSD 6,GSD 7 standard samples.
    该法用于测定龙南稀土氧化物、GSD 4、GSD 6、GSD 7等一系列标准样品的钇含量 ,取得了与标准值一致的结果。
    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。
    Through the measurement of Pt and Al 2O 3 standard samples provided by this Corporation in 50-1200℃ and subsequent date analysis,it was found that the system deviation of the measurement results can be effectively decreased by using proper calculation formula and reference samples.
    使用该会社提供的Pt、Al2 O3标准样品在 5 0 - 1 2 0 0℃进行测试 ,通过对测试数据的比较分析发现 ,正确选用计算公式和参照标样可有效地降低测量结果的系统偏差
    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% ;
    Through the measurement of Pt and Al 2O 3 standard samples provided by this corporation in 50~1200°C and subsequent date analysis, it was found that the system deviation of the measurement results can be effectively decreased by using proper calculation formula and reference samples.
    使用该会社提供的铂、Al2 O3标准样品在 50~ 1 2 0 0°C进行测试 ,通过对测试数据的比较分析 ,发现正确选用计算公式和参照标样可有效地降低测量结果的系统偏差。
 

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