灵敏度分析

With the establishmentof the equivalent medium model, RTM-DRE was applied to study radiative transfer intransparent medium with scattering particles. By taking into account of absorption andscatter of particles, absorption of binder and reflection of interface, the apparent spectrumabsorption model of thermal control coatings was developed by RTM-DRE combined withMies theory. Validity, computational error and time of the model were validated andanalyzed. Furthermore, the apparent spectrum absorption characteristics of thermal controlcoatings were studied, and the influences of optical characteristics of binder and particles,volume fraction of particles, particles diameter, characteristics of interface, and incidentangle of irradiance were analyzed.

采用RTM-DRE研究热控涂层内辐射传递，结合Mie氏散射理论，考虑粒子吸收与散射、基料吸收、界面反射等因素影响，建立热控涂层表观光谱吸收率计算模型，验证计算模型的正确性，分析计算模型的计算误差与计算时间；在此基础上，通过计算热控涂层表观光谱吸收率来研究热控涂层表观光谱吸收特性，分析基料与粒子光学特性、粒子体积份额、粒径、界面反射特性、辐射能量入射角等因素的影响，初步研究空间环境因素对热控涂层表观光谱吸收特性的影响，采用系统灵敏度理论定量分析热控涂层表观光谱吸收特性变化对卫星温度的影响。

In recent years, capillary electrophoresis has been become an alterative technology for sample analysis and widely used in environmental research due to its extraordinary separation facility, high speed of analysis, low requirement of sample volume and cost.

毛细管电泳技术自身浓度灵敏度比较差的缺点限制了它在环境痕量分析中的应用前景，但是只要适当对样品进行预处理，毛细管电泳技术仍然是具有重要应用价值的分析工具。

This article mainly established the analysis method to extract the oxine-copper residues in cucumber and soil with ion pair of antiphase HPLC and Ultrasonic-assisted solvent. This method mainly uses XBridge C18 column and UV detector by using waters phase of phosphatic buffered solution/acetonitrile (60:40, by vol) as mobile phase with 0.8 mL/min flow ratio and UV detection at 250 nm. The residue time was 4.71 minute. Accuracy, precision, and sensitivity of the method all satisfy the demands of pesticide residue analysis.

建立了黄瓜和土壤中喹啉铜的超声波辅助溶剂提取－反相离子对高效液相色谱法的残留分析方法，该方法使用XBridge C18色谱柱和可变波长紫外检测器，并以水相磷酸盐缓冲溶液－乙腈（体积比为60：40）作流动相；流速为0.8 mL/min；检测波长为250 nm；保留时间为4.71 min；该方法的准确度、精密度及灵敏度均满足农药残留分析的要求。

Chemiluminescence analysis has the virtue of highly sensitivity,broadbrimmed linear range and quick analysis speed.It has found wide application not only in the organic technology,medicine,food testing,but also in environmental monitoring and material science.

由于化学发光分析方法的高灵敏度、高选择性、方法简便、取样量少等优点，使得化学发光分析越来越成为测定药物的重要手段。

The method has better accuracy and recovery and is suitable for determining pyrethoid pesticides in celery cabbage.

该法具有较高的精密度和灵敏度，且操作简单、分析速度快，可作为一种经济实用的分析方法应用于大白菜中拟除虫菊酯农药残留的常规检测。

The new method combined the use of two DNA probes whose sequences comprises the whole complementary strand to the target DNA, in which one probe was labeled with an EDTA-〓 complex on the 5'-terminus and the other, labeled with a bidentate β-diketone on the 3'-terminus.

该法测定目标DNA的最低检测下限为6 pM，比现有其它均相DNA杂交分析法低2-3个数量级。该法具有简单、快速和高灵敏度等优点，通过使用各种的标记DNA探针，预计该法可广泛应用于各种实际DNA样品的分析。

At the end of this article, we deeply discussed how to improve the sensitivity of immunoassay that used the phycoerythrin fluor as probes.

对如何进一步提高藻红蛋白介导的免疫荧光分析方法的灵敏度作了深入的分析和讨论。

At the end of this article, we deeply discussed how to improve thesensitivity of immunoassay that used the phycoerythrin fluor as probes.

对如何进一步提高藻红蛋白介导的免疫荧光分析方法的灵敏度作了深入的分析和讨论。

Moreover, the actual allele frequency of most varieties deviates far from Hardy-Weinberg equilibrium. All PPB、na 、I、h、Gi and Fst have proved to be the references to elucidate that ISSR is a most powerful tool to analyze genetic diversity, compared with the RAPD marker and the allozyme marker is less strong ordinally. We could divided the 70 samples into A, B, C, D and E five groups using three methods according to genetic distance clustering. There is a bit displacement for few varieties in different clustering maps, but the most are similar to morphological analysis despite that there is still a great difference among cultivars in the same one group. The above results imply that the three methods have the different sensitivity and resolution in genetic distance analysis of close varieties. The Mantel test indicates that the results from the three kinds of markers have the significant correlation, which demonstrates that the number of the used three kinds of markers is enough to exactly detect the diversity of all 70 samples to ideal extent. And these methods can be used to evaluate the diversity of the whole group using the miscellaneous samples instead of the individual sample, of the Gerbera jamesonii are mainly from tissue culture plants. In conclusion, the above study results provide a reference for the application of three kinds of molecular markers to molecular marker-assisted breeding of flower. 2. The genetic diversity among the eight introduced cut-flower varieties of Ranunculus asiatica was analyzed by the ISSR markers. Based on the genetic clustering tree, all the colorful flower varieties are clustered into one group, and the white flower varieties into another group. Moreover, among the former group the yellow flower varieties are clustered into one sub-group, and the reddish flower varieties, such as rose color, pink, nacarat, are clusetered into another sub-group.

由三种分子标记的分析结果可以看出，等位基因平均值、观察杂合度、Fis值、Fit值皆较高，表明非洲菊等位基因较丰富，杂合基因偏多，且绝大部份品种的实际等位基因频率在品种内偏离了Hardy-Weinberg equilibrium；PP8、na、Ⅰ、h、Gi及Fst皆表明，ISSR检测遗传多样性的能力最强，其次是RAPD，等位酶最低；根据遗传距离进行聚类，三种方法都把70个品种分成A、B、C、D、E五个大组，每一组中除少数品种发生位移外，大部份品种分类结果相似，且与形态分析结果有相似性，但在每一组中，品种间的聚类差别较大，表明这三种方法在近距离品种间检测遗传变异时灵敏度及分辨力不同；Mantel检测表明，三种标记的分析结果有显著相关性，表明所用的三种分子方法的标记数量已经可以相对无偏地检测到70个品种间遗传变异；非洲菊为组培苗，三种标记的检测结果皆表明，混合样品可以作为个体样品的代表，对整个居群的遗传多样性进行评价；这些研究结果可为三种分子标记方法在花卉分子辅助育种中的进一步应用提供借鉴。

CD was added into running buffer in above electrophoresis system, and the separation efficiency of polycarboxylic acids was improved further by the supramolecular interaction. Based on that, the method for separation and determination of several di- and tricarboxylic acids, including oxalic, malic, tartaric and citric acids, found in fruit juices was developed, which supplied a fast, convenient and sensitive method for the food analysis, the quality control of foods and various drinks.

果汁中多元有机酸的毛细管区带电泳/Cu电极安培检测在上述分析体系的电泳介质中添加β-CD，利用CPB与β-CD的协同超分子作用，进一步提高了多元有机酸的分离效率，成功实现了水果中四种常见多元有机酸草酸、柠檬酸、苹果酸、酒石酸的基线分离，建立了几种果汁中上述有机酸毛细管区带电泳/Cu电极安培检测定量测定方法，为食品分析、食品饮料质量控制以至辨别酒类商品真伪等提供了一种方便、快速、灵敏度高的分析方法。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐