空白样品

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；

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 .

主要有标准样品、空白样品与生物样品三种。

There are three kinds of samples : standard , blank and the unknown biological samples .

添加提取物的香肠的TBA值也较空白样品低。

TBA values of the sausage added extracts were lower than .

当空白样品CAP水平为1～100μg/kg时，平均回收率达71.33%～95.29%，相对标准偏差为1.73%～7.45%。

The average recovery rates were 71.33 % - 95.29 % when 1-100 μ g / kg chloramphenicol standards were spiked into the zero shrimp sample , and the RSDs were 1.73 % - 7.45 % .

颜料的分散稳定性比未经表面处理的空白样品有了较大程度的提高。

The dispersing stability of treated pigments has been improved greatly .

磁处理原油的析蜡温度比空白样品下降2.5～3.5℃；

The wax precipitation temperature of magnetic treated crude decreases 2 . 5 ~ 3 . 5 ℃;

结果：显微鉴别特征明显、薄层色普清晰，空白样品无干扰；

RESULTS : The micro character and thin layer chromatography was clear with no disturbance of negative sample .

通过分析适当数量的空白样品进行测量分析背景的响应值，并计算这些响应的标准偏差。

Measurement of the magnitude of analytical background response is performed by analyzing an appropriate number of blank samples and calculating the standard deviation of these responses .

近片层γ-TiAl基合金宏观屈服的微观表征结果：显微鉴别特征明显、薄层色普清晰，空白样品无干扰；

THE MICRO CHARACTER OF THE MACROSCOPIC YIELD OF NEARLY LAMELLAR γ - TiAl BASED ALLOYS RESULTS : The micro character and thin layer chromatography was clear with no disturbance of negative sample .

在空白样品中添加浓度为1μg/kg时，鱼肉、鱼皮中甲硝唑的平均回收率分别为69%和75%，日间变异系数均小于15%。

The mean recoveries rate of metronidazole was more than 60 % respectively in skin and muscle at the level of 1 μ g / kg with the intra-day relative deviation less than 15 % .

文章最后讨论了与软件设计相关的一些问题，并给出了针对不同硬件功能的一些测试程序框图以及接触式AFM模式下对空白光盘样品进行扫描的扫描波形和图像。

At the end of this article , some prblems about the software design of the system were discussed , some flow charts of the test program were listed , and the scanning waveform and images of contact mode AFM were discussed .

为了避免或减少试剂空白和样品空白的干扰，生化自动分析仪一般选择反应指示物的吸收峰对应的波长作为检测波长。

In order to avoid interference of reagent blank and sample blank , for the biochemical autoanalyzer the absorbent peak of reaction indicator is chosen as test wavelength .

由于此方法无需加入其他试剂，故样品无污染，具有空白值低，样品中的碘释放完全的特点。

Because there is no need to add other reagents , the samples have the advantages of non-contamination , low blank values , and the iodine released completely from the samples .

其影响程度取决于空白CO2的量和空白CO2与碳酸盐样品之间C、O同位素的差别大小。

The extent of this influence depends on the amount of blank CO2 and the isotopic differences between the blank CO2 and the carbonates .