高灵敏度的

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。

First it changed the variety of capacitive into the variety of voltage by charge amplifier ,then demodulates the carrier wave signal modulated by the accelerometer signal and passed thought the low pass filter ,at last ,output a direct current signal which is directly proportional the accelerometer signal ,the circuit has the function of measuring the variety of capacitive and the specialties of higher sensitive and better linearity.

介绍一种可用于微机械电容式加速度计检测的接口电路，该电路利用电荷放大器把电容变化转变成电压变化，再对被加速度信号调制的载波信号进行解调，经过低通放大滤波，最后得到与加速度信号成正比的直流电压信号，具有测量差分电容变化的功能和灵敏度高、线性好的特点。

In this paper,the Graphite Furnace Atomic Absorption Spectrometry was applied to the determination of molybdenum in lixiviated solution discharged from plants of producing Fe and Mo.

用石墨炉原子吸收光谱法测定钼铁厂固体废物浸出液中的钼，当选择合适实验条件的情况下，钼的测定灵敏度较高，校准曲线的相关系数大于0.999，精密度较好，方法的检出下限为0.6μg/L，定量测定范围2.4～60μg/L，测定结果令人满意

Methods : Based on the evaluation indicators to establish the principle of combining clinical departments of the Hospital Development Goals (high quality, high efficiency and low consumption, development, and satisfaction). through lots of documents and inspection of the hospital management information absorption of current research, literature, expert advice and cluster analysis methods were selected representative, good workability, high sensitivity, have good science, independence easy evaluation of 27 indicators, the establishment of hospital clinical departments integrated evaluation system weighted TOPSIS RSR combined with the right selection by a three-level hospitals 31 clinical departments to conduct verification .

根据评价指标建立的原则，结合医院临床科室的发展目标(优质、高效、低耗、发展、满意)，通过查阅大量文献和有关医院管理方面的资料，吸收当今的研究成果，运用文献法、专家咨询法和聚类分析法相结合的方法挑选出代表性强、可操作性好、灵敏度高、有较好科学性、独立性易于考评的27项指标，建立医院临床科室综合评价指标体系，采用加权TOPSIS法与RSR法结合对所选取某三级甲等医院31个临床科室进行验证。

Methods IO(superscript - subscript 3) was prepared by quantitative oxidation of bromine water, with the excessive bromine removed with formic acid. In the presence of excessive iodide, I(superscript -) would be oxidized by I(superscript - subscript 3) to form 3 times of I(superscript - subscript 3) in mol, displaying maximal absorption at 286nm in ultraviolet zone and a slightly low apex at 345nm.ε286=1.3×10^5 Lmol^(-1)cm^(-1),ε345=8.1×10^4 Lmol^(-1)cm^(-1), with both showing high sensitivity.

利用溴水定量氧化I生成IO(上标-下标 3)，再用甲酸除去过量的溴，IO(上标-下标 3)在过量碘化物存在下氧化I产生3倍摩尔量的I(上标-下标 3)，在紫外光区的286nm具有最大吸收，并在345nm处另有一略低的吸收峰，ε286=1.3×10^5 Lmol^(-1)cm^(-1)，ε345=8.1×10^4 Lmol^(-1)cm^(-1)，均具有很高的灵敏度。

3-axis acceleration sensor is a single chip device which is developed by freescale based on MEMS.It can sense fall,tilt,motion,positioning,shock or vibration on the three axises in a very high sensitivity.It is small and has low power consumption.It has the feature of Selectable Sensitivity which allows you to select different g value among 4 sensitivities.So it can be applicated in various of areas.

飞思卡尔开发的基于微机电系统的三轴向低重力加速计是一款单芯片设备，能在XYZ三个轴向上以极高的灵敏度读取低重力水平的坠落、倾斜、移动、放置、震动和摇摆变化，体型小巧功耗低，且有可选量程，可广泛的应用于各个领域。

3-axis acceleration sensor MMA7260Q is a single chip device which is developed by freescale based on MEMS.It can sense fall,tilt,motion,positioning,shock or vibration on the three axises in a very high sensitivity.It is small and has low power consumption.It has the feature of Selectable Sensitivity which allows you to select different g value among 4 sensitivities.So it can be applicated in various of areas.

飞思卡尔开发的基于微机电系统的三轴向低重力加速计 MMA7260Q 是一款单芯片设备，能在XYZ三个轴向上以极高的灵敏度读取低重力水平的坠落、倾斜、移动、放置、震动和摇摆变化，体型小巧功耗低，且有可选量程，可广泛的应用于各个领域。

A much larger detecting area could be acquired by combining a number of UGN3503U with a special circuit to form a magnetic sensor array, and this new kind of magnetic sensor array could be widely used for detecting the metal defects in long distance buried pipeline and oil tank floor by magnetic flux leakage method.

该阵列的磁敏感区域是UGN3503U测量区域的数倍并且有较高的测量灵敏度和线性度，在将其制成传感模块的情况下可以用于在役长输管道和油罐等大型设备的漏磁探伤。

The outstanding feature of the new cutting dynamometer contrary to other type of dynamometer sensor is that it is more similar to general lathe tool. It can be installed on knife rest, so it is same wit practice state of cutting. Sensitivity of dynamometer is more high, especially main cutting force can attain 7.4pC/N. The calibration results show that it has high static linearity, and its natural frequency is greater than 5 kilohertz, so the cutting dynamometer has fully reached the dynamometer standard stipulated by CIRP-STCC.Finally, in order to measure the cutting force, the orthogonal experiment method in which the three factors are the diameter of cutting, feed and spindle speed is performed.

该新型车削测力仪与原有车削测力仪相比的突出优点是：它的外形接近一把普通的外圆车刀，可直接装夹在刀架上，与实际切削状态相同；传感器的灵敏度更高，尤其是主切削力方向可达到7.4pC/N；标定结果表明该传感器具有良好的线性静态特性，固有频率高于5kHz。

And the polymer is so sensitive, it can detect explosive residues on the order of a few millionths of a gram. Often more than a thousand times that amount is left on surfaces.

这种聚合物的灵敏度很高，能够检出几百万分之一克的炸药残余物（通常，接触过炸药的表面含有的残余物是它的一千多倍。

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