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    RSD of determining actual sample is 0.68%,and the recovery rates are 94.6%~96.8%.
    改进方法具有较好的精密度和准确度,实测样品的相对标准偏差为0.68%,加标回收率为94.6%~96.8%。
    RESULTS:The average recovery of sulfamethazine and sulfamidine in samples was 100.21% and 98.34% , RSD were 0.51% and 0.62%,respectively( n =10). The results of determination for three batches of Xiaoer An powder were agreed with those by using standard method.
    结果 :10份模拟样品测定的平均回收率分别为 10 0 2 1%和 98 34% ,RSD分别为 0 5 1%和 0 6 2 % ,对三个实测样品的测定结果与标准方法一致。
    Trichlorfon were separated on a C18 columnusing low-cost methanol and water as mobile phase. The recovery of method is 99.26%~100.46%. The coefficient of variation is 0.28%.
    使用价廉的甲醇与水为流动相,在C18柱上即可实现有效分离,方法回收率为99.26%~100.46%、变异系数(CV)为0.28%,实测样品表明该方法与国家标准方法无显著性差异。
    The lowest detection limit was 0.5mg/kg.
    本文实测样品中甲醛的最小检出浓度为0.5mg/kg。
    This method is quick and easy operation with high accuracy,the recovery rate of chlorine and boron in the sample can be 98.2% and 102.1% respectively,the relative standard deviation((n=5)) can be 1.53% and 2.22% respectively.
    论述了一种测定硫酸钡中氯、硼两种杂质离子含量的方法。 此法准确、精密度高,实测样品中氯和硼的回收率分别为98.2%和102.1%,相对标准偏差(n=5)分别为1.53%和2.22%。
    The total recoveryof this method is 90%. The half life of ~(228)Ac measured is 6.56 hrclosing to 6.13 hr,the real half life of it.
    本方法的化学总回收率达90%,按最小二乘法计算实测样品的半衰期为6.56小时,接近~(228)Ac 真实半衰期。
    The reproducibility of fission track method has been checked and discussed using samples collected in the same fields of uranium ore exploration.
    利用实测样品,对裂变径迹法的重复性进行了研究。
    The method is flexible and simple. Analytical results of authentic samples are satisfactory.
    方法简便、灵活,实测样品获得了满意的结果。
    Acceleration amplitude measured on a model C. B is in the order of 100g and with high S/N ratio.
    实测了样品支架上的振动,加速度的幅值可达100g,信噪比高。
    In order to eliminate the particle size effect, the sample particle size should be controlled strictly so that the standard sample and test sample particle sizes are identical. For bigger particle size (70-40 micrometer), higher precision and accuracy are also obtainable by X--ray diffraction.
    为消除颗粒效应的影响,采取严格控制样品粒度的方法,使标准样品与实测样品的粒度保持一致,对于粒度较大(70~40μm)的样品,同样可使X-射线衍射定量分析结果达到较高的精度和准确度。
    Ths paper presents a experiment using EVA to produce organical material with PTCproperties. The sample's properties were measured and its conductive machenism was analysedthrough nonlinear regression computing.
    本文简述了以EVA为基质材料制备有机PTC特性材料的实验,实测了样品有关特性,并用非线性回归方法讨论了其导电机理.
    Having obtained the spectral reflectance of the sample color to be simulated by an interfance with a color measurement system9 the frame buffer of the monitor is directly programmed and the digital input values to it is corrected by iteration such that a vivid color is displayed on the CRT color monitor.
    利用与测色系统的通信接口获得实测样品色的光谱反射比数据,经数据分析和处理,直接对显示器颜色缓冲器进行底层编程和迭代修正,在CRT上得到了逼真的颜色。
    The statistical results of 20 657 equilibrium factor F values from 1988~1993 in 5 uranium mines of China indicate that total mean value of equilibrium factor F weighted by number of measuring samples in these mines is 0 33.Monthly variation of equilibrium factor F value in each year is also given in this paper. (
    本文对国内5个铀矿山1988~1993年间20657个平衡因子F值进行了统计分析。 结果表明,平衡因子F按各矿实测样品数加权的总平均值为0.33,文中同时给出平衡因子F值每年逐月的变化
    Particulate groups in the form of non normal distribution are proved to exist in welding aerosols through processing the samples of practical determined welding particulate sizes. The simple, suitable method to process this distribution is of chart estimation. The number and volume of practical determined samples are characterized by non normal distribution.
    通过实际焊接气溶胶粒子谱样品的处理,证实焊接气溶胶存在遵从非正态型分布的粒子群,图估法是处理这类分布简便、适用的方法.本文实测样品数量分布遵从非正态型分布,其体积分布也遵从,不仅它们的标准差σ表达式相同,其σ值也相同.
    A direct reverse transcription coupled with polymerase chain reaction (RT PCR) was used to detect HAV seeded sea water,coastal sediment and Arca subcrenata,HAV strain treated by different kind of disinfection,and naturally occurring HAV in Arca subcrenata.
    采用直接逆转录一多聚酶链反应(RT-PCR)对加标海水、海泥、毛蚶的浓缩样品,用不同消毒方法处理过的甲型肝炎病毒(HAV)及毛蚶实测样品进行了HAV-RNA分析。
    Only Arca subcrenata collected from Shanghai in 1988 showed positive result by RCR,but negative by immunofluorescence at the same time. This result demonstrated that HAV was not infectious owing to long time storage.
    毛蚶实测样品结果表明,只有1988年上海毛蚶RT-PCR阳性,但细胞培养间接免疫荧光法检测结果为阴性,说明毛蚶冻存太久(≥5年),HAV已不具感染性。
    The more measured sample selected, the wider the mineral classes, the morewidespreed the representative model, the higher reliabilty is.
    所选用的实测样品愈多,该族矿物种后愈广泛,则建立的模型的代表性也愈广泛,可靠程度愈高。
    Crystalic-chemical types predicted for 5 samples to be measured are totally coincident with the nominated, showing a 100% accuracy.
    预测5个实测样品的晶体化学类型与原定名对比完全符合,准确度达100%。
    The samples have been got pleased result.
    实测样品获得满意的结果。
    By means of this method,the contamination can be diminished in analytical process. The detection limit is 0.066 ng/ml and precision is 3.76% .
    还确定了仪器最佳工作条件 ,原子化条件等 ,研究了共存离子的干扰 ,回收试验及实测样品等 ,该方法的精密度为 3.76% ,检测限达 0 .0 66ng/ ml
 

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