稀释

The merits of isotope dilution are validated with the determination of lead concentration in standard reference materials including plant samples and human hair by ICP-MS, and the results are in good agreement with the certified values.

为考证同位素稀释测量方法的优点，用ICP-MS测量了植物、人发标准参考物质中的铅同位素比值，进而用同位素稀释法测定其中的铅含量，实验测量值与标准物质的铅参考值十分吻合。

Cool the solution, cautiously dilute with water, transfer to a 200-mL volumetric flask, dilute with water to volume, mix, and filter.

冷却解答，慎重地稀释用水，调动到200ml volumetric烧瓶，稀释用水对容量、混合和过滤器。

CPLP sensitized with bovine serum albumin were chequerboard titrated by antibody against BSA, and effects of sensitized conditions on latex agglutination test were studied.

结果表明，以0.05 mol／L，pH8.0的Na_2HPO_4-NaH_2PO_4缓冲液稀释CPLP乳液至1.0％，BSA的终浓度为0.5 mg／mL，37℃致敏30 min时，与1∶160稀释的腹水抗体(效价1∶40，000)发生凝集反应的效果最好。

The four basic methods for estimating μ, frequency of dividing cells, biochemical indices, model approaches, and dilution incubations without grazers were reviewed, among them the dilution method was recommend as standard method for preliminary investigations of μ in China seas.

介绍和比较分析了研究μ的细胞分裂周期法、生物化学指示物法、模型法和去除摄食者稀释法这4类方法，推荐去除摄食者稀释法作为中国近海μ研究的重要方法。

The products used are Chemlok 205 primer diluted 1:1 with methyl ethyl ketone and Chemlok 233X cover coat diluted 1:3 with toluene.

所用产品为Chemlok 205 底胶用一倍量甲基乙基酮稀释，和Chemlok 233X 盖层用3倍量甲苯稀释。

We collected Leishmania promastigotes,washed its with 0.01mol/LpH7.2 buffers ,smashed its,and then measured protein content and titrated work concentration.2.We tested Kala-azar patients"serum and healthy persons"serum of epidemic area by ELISA. The results of three antigensmethods were the same, work concentration of serum was the same(l :100).Results:The protein content of three antigens is, 901 strain with 1000ug/ml,801 strain with 960ug/ml and 951 strain with 1100ug/ml. Suitable work concentration is, 901 strain with 10ug/ml ,801 strain with 12ug/ml and 951 strain with 11ug/ml.

1、抗原的提取：收集新疆不同地区分离得到的利什曼原虫前鞭毛体，经培养，用0.01mol/L pH7.2的磷酸盐缓冲液漂洗，超声粉碎，比色法测定其蛋白质含量，间接ELISA法滴定出抗原的工作稀释度。2、检测：用提取的三株抗原，分别进行间接ELISA法测定黑热病病人血清和疫区健康人血清抗体，并以肺结核病人血清、非疫区健康人血清做对照，三株抗原所用检测方法一致，血清工作稀释度均为1∶100。

HHD is a better selection for hemodilution and is good for protection of lung. Lung water,extravascular;Kidney transplantation,Donor;Laparoscopy

不同的血液稀释状态对全麻腹腔镜活体肾移植供体围手术期血管外肺水产生不同的影响，静脉输注琥珀酰明胶20ml/时高容量血液稀释可产生良好的扩容效果，并且利于肺脏的保护。

The effect of sample treatment on the activity recovery in dilution refolding was discussed.

在稀释复性中考察了不同原料液处理过程对于活性回收率的影响，并总结出先酸化再脱除还原剂DTT是最适合于稀释复性的原料液处理过程。

Abstract］ objective: to investigate factors in water-dilution affecting the determination results with biochemical oxygen demand （bod5） standard dilution method, so as to improve the sensitivity and accuracy, and to provide rational suggestion for further study.

目的：旨在寻找生化需氧量标准稀释法测定中稀释水的一些影响因素，提高测定的灵敏度与准确度，为今后的教学研究提供一定的参考。

Abstract］ Objective: To investigate factors in water-dilution affecting the determination results with biochemical oxygen demand （BOD5） standard dilution method, so as to improve the sensitivity and accuracy, and to provide rational suggestion for further study.

作者：张震，金庭旭，张华，方世杰目的：旨在寻找生化需氧量标准稀释法测定中稀释水的一些影响因素，提高测定的灵敏度与准确度，为今后的教学研究提供一定的参考。

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