定量分析

In X-ray fluorescence analysis, matrix effect is the main interfere factor.

在X射线荧光分析中，基体效应的影响在元素定量分析中是产生分析误差的主要来源。

We use Hodges-Lehmann statistic to do significance test for those factors. The multiplication model is applied in the quantitative analysis and weighted least squares method is introduced to solve the multiplication model. Although the matrix of coefficients is not of full rank and the solutions of the multiplication model are not unique, we prove that all those solutions are equivalent in some sense.

本文用Hodges-Lehmann统计量对风险因子作显著性检验，将乘法模型用于数据修匀和风险因子的定量分析中，并提出了用加权最小二乘法求解风险因子的风险度量，在系数矩阵不满秩、解不唯一的情况下证明了所有解在某种意义下的等价性。

Theresults of diversity analysis show understory plants species diversity index of tree layer is maximal,shrub layer is secondary,herb layer is minimal.

物种多样性定量分析表明，乔木层物种多样性最大，灌木层次之，草本层最小。

The obtained maximum relative standard deviation was 5.89%, and relative errors were -20.99%-15%.

实验结果表明，测量结果的相对标准偏差最大为5.89%，相对误差在-20.99%～15%范围内，说明对铝合金样品成分进行定量分析，激光诱导击穿光谱是一种有效的光谱分析工具，但是分析结果的准确度仍需要提高。

The analytical method for sodium methyl mercaptide was established based on the reaction in quantity between methyl mercaptan and iodine at the base condition.

采用甲硫醇与碘在碱性条件下定量反应生成双硫醚的反应原理，建立了甲硫醇钠的定量分析方法。

For the liquid, the DMF is adopted as internal standardand and with fixed phase of OV-101 of 15 meters capillary column, vapour-phase chromatography FID is successfully used to have a quantitative analysis on mesitylene and acetic acid.

对于液体，采用以DMF为内标物，固定相为OV-101的15米毛细管柱，使用气相色谱FID成功的进行了均三甲苯和乙酸的定量分析。

This Meta- analysis did not support the hypothesis that vasectomy could increase the risk of prostate cancer.

本文在广泛查阅国内外文献的基础上，采用Meta分析方法对输精管结扎与前列腺癌关系的研究文献进行了综合定量分析，旨

The parallel line approximation -a new method for The approximation of demagnetizing field in magnetic-film of single domain is presented.

对磁记录中使用的磁阻传感器的磁阻效应进行了定量分析，并提出了一种新的单畴磁膜退磁场的近似计算方法──平行线近似。

The quantitative analysis method of the space difference of the regional sustainable development was discussed in this paper.

探讨区域可持续发展空间差异的定量分析方法。

Quantitative analysis of micro-structure and fracture surfaces was used to study the micromechanics of fracture process in the heat-affected zone of the alloys.

定量分析的微观结构和断裂面是用来研究细观断裂过程的热影响区的合金。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。