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Our method provides a simple, direct and high-throughput assay for measuring choline in biological samples.

博世生物技术提供了用于生物样品胆碱浓度检测的简单，直接，高通量的方法。

By optical microscope and electron probe analysis,results of 100 meteorites show that two samples belong to special types,and the others are classified as ordinary chondrite s.

通过光学显微镜观察和电子探针测试，确定其中98块为普通球粒陨石。

The results suggest that natural TL of the three samples with known depth positions had depth distribution such as meteoritic cosmogenic nuclides, which was smaller with increasing distance from the current surface, indicating the conditions of cosmic ray exposure of the Jilin chondrite.

对3个已知取样深度和3个未知取样部位的吉林陨石样品的热释光研究表明，其自然热释光值具有宇宙成因核素含量相似的性质即深度分布效应，随着样品距离表面位置的增大而降低，这表征了母体暴露期间宇宙射线的分布状况。

Influence of the concentration of Cr in the leachate and quantity of Pb(CH3COO)2 of Pb(NO3)2 on the reaction of synthesizing yellow chrome was also studied. Finally, according to the criterion and standard method in GB3184-82, some yellow chrome synthesized in the experiments was sampled and the concentration of PbCrO4 in these samples was determined. The following conclusion can be drawn from these experiments.

根据中华人民共和国国家标准GB3184-82中的规定铅铬黄颜料的技术质量指标和检测方法，测定了铬黄样品中铬酸铅含量的厂迄回【、矾士牢位论父泅仰yW盯皿'S川mS达标情况，结论如下：门）反应中重铬酸盐的浓度并不需要达到前人所提出的150～2509·L'的范围，在一定条件下低于此浓度时对铬黄生成反应并无不利影响。

Twenty four chrysoberyl and alexandrite samples from the major deposits all over the world were studi- ed qualitatively by XRF and the trace elements in chrysoberyl were gotten mainly to be Fe, Ga, Ti, in alexandrite to be Fe, Cr, Ti.

对24块世界主要产地的金绿宝石和变石进行X荧光能谱分析，得到其所含的主要微量元素分别是Fe、Ga、Ti和Fe、Cr、Ti。

Magna populations in edge and central region was studied. In 39 A. magna samples and five A. chukar outgroups, the entire mtDNA D loop was PCR amplified. The 456-457 nucleotides of the DNA D loop domain Ⅰ have been sequenced by dideoxy chain termination method. The 16 variable sites(3 5% of the entire sequence) defined 15 haplotypes.

本研究采用聚合酶链式反应和直接测序的方法获得了采自甘肃的大石鸡一个边缘种群和两个中心地理种群共39个个体的线粒体DNA控制区基因456～457个核苷酸的基因序列，16个变异位点(占整个序列的3.5%)有15个单倍型。

The content of sulphate reducing bacteriaof the 35 sediment samples was determined by using MPN technique in the survey areas of Bering Sea and Chukchi Sea.

用 MPN法测定了取自白令海和楚科奇海 35个沉积物样品中的硫酸盐还原菌含量。

Sediment core samples were collected from the continental shelf of the Chukchi Sea in July 1999 and rare earth elements were measured by instrumental neurton activation analysis.

于 1 999年夏季我国首次北极科学考察期间在楚科奇海采集了三个沉积物岩芯，并采用中子活化法测定了沉积物样品中稀土元素的含量。

Samples always uses Cimex drivers.

打样则必须使用 Cimex 驱动。

The actual number of samples taken was 41 in development, 17 in the mining team, 10 in underground maintenance, 2 in underground transport, 10 in the washing plant, 10 in ash and cinders, 6 in boiler and turbine, and one in each of administration and electricity.

拿取的样品的实际数量是41在开发中， 17在采矿队， 10在地下维护， 2在地下运输， 10在洗涤的植物中， 10在灰和炭渣， 6在锅炉和涡轮和一个在其中每一管理和电。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。