生物样品

The paralytic shellfish poisoning toxicity levels of shellfish from alongshore sea area of the Guangxi province later years, determined with both Mouse Bioassay and HPLC.

通过对近年来广西近岸海域贝类样品的麻痹性贝毒素小白鼠生物法和高效液相色谱法检测结果的分析，表明广西近岸海域多处地区和多种生物含有麻痹性贝毒素；4-5 月及7-11月为两个毒性值的年高峰期；GTX4、GTX5和GTX3毒素成分的检出率较高等。

In the end, the bioactivity and biocompatibility of samples were studied based on apatite precipitation and osteoblast culture in vitro.

最后，通过体外仿生矿化和成骨细胞培养来研究固定蛋白前后样品的表面生物活性和生物相容性。

From the composite section, it can be found that some fossils'range zones are too short. Maybe it is caused by the fossils not preserved properly or the samples not collected comprehensively. Most fossils'first occurrence data are later than the ages which are defined by the MIDK4 composite section. It is probably caused by the Foraminifer zones in Tethyan- Himalaya which are not isochronous with other areas. It can also be recognized that there are two major extinction and revival events at the boundary of Cenomanian/Turonian and the boundary of Coniacian/ Santonian. They are coincident with the two Ocean Anoxic Events and can be considered as the typical response by creatures.

在复合剖面上可以发现：一些化石的延限非常短，这可能是由于化石保存不完整或者样品采集不全造成的；大部分化石的首现面年龄值都要晚于MIDK4数据库复合剖面给出的年龄值，这可能是由于特提斯喜马拉雅带与全球其他地区的有孔虫化石带不等时造成的；同时，可以在复合剖面上识别出在Cenomanian/Turonian界线附近和Coniacian/Santonian界线附近存在两次大规模的生物灭绝和复苏事件，这正好与两次大洋缺氧事件发生的时间一致，可以作为缺氧事件的生物标志。

Because of the complexities and varieties of biological tissues, and the influences of sample preparation, the backward SHG and TPEF of different tissues are different. In this thesis, rat-tails were used as experiment objects, there are 40 slices including transverse and longitudinal, HE-dyed and undyed.

摘 要：由于生物组织的复杂性和多样性，以及样品制备等因素的影响，实验观察到的生物组织的背向二次谐波（second harmonic generation， SHG）和双光子激发荧光（two-photon excitation fluorescence， TPEF）效应的差异较大。

In the air samples ,di(2-ethylhexy) phthalate,di-n-butyl phthalate and dioctyl phthalate were included,while diethyl phthalate,di(2-ethylhexy) phthalate,dipropyl phthalate,butyl benzyl phthalate,dioctyl phtha...

大气环境样品中邻苯二甲酸酯类化合物的预处理主要采用的是索氏提取、溶液提取和填充柱分离；水环境样品中采用的前处理技术较多，但大多数都是萃取技术；底质和生物试样目前用的较多是微波萃取、超声波萃取和索氏提取。

In this paper the simplified equations for computing the complex permittivity is gained by detailed analyses of the resonant-cavity perturbational theory.

谐振腔微扰法特别适合对微小体积样品的测试，很好解决了生物组织样品取样数量有限的问题。

The use of pinewood template was beneficial to the formation of the smaller crystalline size and higher specific surface area. These biomorphic MgO materials exhibit a strong basicity, and can be used as effective basic catalysts or supports.

松木模板的使用有助于降低形成MgO样品的晶粒直径并明显提高了其比表面积，与此同时，这些具有生物形态的MgO样品仍保持了较高的碱强度，可望用作优良的碱催化剂或催化剂载体。

B. tabaci samples from 27 different areas, 14 provinces were collected, and the biotypes of the samples were identified by a RAPD-PCR method.

收集了国内14个省市25个地区的烟粉虱种群的样品，抽提到各个样品的DNA，并以DNA为模板，H〓为引物，对各个烟粉虱种群进行了RAPD-PCR分析和生物型鉴定。

A panticular NO microelectrode has been developed,possessing good selectivity, sensitivity, and mechanical strength, and a novel test technique of NO microelectrode has been established. Neurotransmitters including monoamines, amino acids, peptides, and related bioactive substances such as calcium, magnesium, kalium, natrium and indole substances in brain have been studied by capillary electrophoresis with electrochemical detection. Some problems in analysis of actual samples have been solved, such as micro sample injection and the joint of CE-ED with micro-dialysis.

研制选择性好、灵敏度好机械强度高的NO微电极，建立NO微电极活体测试技术；研究脑内单胺类、氨基酸类、肽类神经递质以及钙、镁、钾、钠、吲哚类物质等相关生物活性物质的毛细管电泳电化学检测技术，解决实际样品测定中遇到的问题，如微量样品进样和与微透析技术联用等。

METHODS: Non-derivatised cuvette immobilised Lipid A was used to track the bonding between the Lipid A and aqueous extracts and alcoholic extracts from seventy-eight TCM, and then neutralized endotoxin in vitro by selecting hypso-bonding TCM that removed the tannins.

将革兰阴性细菌的脂质A包被于生物传感器的非衍生板建立靶点，跟踪测定赤芍、大黄、黄芩等78种中药的水提物和醇提物与Lipid A的结合活性，再将筛选出的中药去鞣质后与定量的内毒素（LPS，20、50ng·ml^-1）37℃孵育30min后，测定孵育后的样品与Lipid A的结合情况，以评价样品内的活性物质含量。

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