色质

The many dark clusters of cells in the hepatic parenchyma are islands of extramedullary hematopoiesis typical for fetal liver.

肝实质内的许多色暗的成串的细胞是髓质外的岛状肝细胞增生。这是胎儿肝脏的典型表现。

The Di(2-ethyl hexyl) Adipate in Nenjiang river water was extracted by hexane with ultrasonic generator.

采用超声波提取技术，用正己烷提取嫩江水中己二酸二(2-乙基己基)酯增塑剂，以气相色谱/质谱联用选择离子监测法检测，外标法定量。

A high performance liquid chromatography-tandem mass spectrometry method was developed for the analysis of amitrole residues in agricultural products.

建立了采用高效液相色谱－串联质谱法检测多种农产品中杀草强残留量的方法。

It has characteristics of chemical inertness , high-whiteness, high purity and equal particle size.

具有粒度分布均匀，化学性能稳定，色白、质纯特点。

The qualitative and quantitative method of sildenafil citrate illegally added into traditional chinese medicinal preparations for invigorant were carried out.

采用超高效液相色谱－质谱联用法，离子源为ESI源，正、负离子同时检测，对中成药中非法添加的枸橼酸西地那非进行定性和定量检测。

Fund Project: the National Natural Science and Technology Source Program, No. 2001DEA1006*Abstract: Number of neural stem cells is small. NSCs look like circle or ellipse with or without short neurite, with large nuclear-cytoplasmic ratio and deep karyotin. NSCs have no visible differences with other kinds of cells in appearance, and have no cell surface marker. Currently, there are mainly three aspects to identify NSCs: expression of specific nerve antigen, including nestin, Musashi, transcription factor, and cell adhesion molecules; self-renewal ability including single cell clone analysis, BrdU mark and S phase cell; the potential of multi-direction differentiation including immunocytochemical process and reverse transcriptase polymerase chain reaction.

由于神经干细胞的数量很少，从细胞形态来看神经干细胞为圆形或椭圆形，无或有较短的突起，核质比大，核染色较深，形态上与其它种类的细胞没有明显的差异，并且未找到一种细胞表面特异性标志物，因此目前鉴定神经干细胞主要有以下3个方面：特异性神经抗原的表达，包括巢蛋白、Musashi、转录因子及细胞黏附分子；自我更新能力，包括单细胞克隆分析、BrdU标记S期细胞；多向分化潜能，包括免疫细胞化学法、聚合酶链反应色法。

Number of neural stem cells is small. NSCs look like circle or ellipse with or without short neurite, with large nuclear-cytoplasmic ratio and deep karyotin. NSCs have no visible differences with other kinds of cells in appearance, and have cell surface marker. Currently, there are mainly three aspects to identify NSCs: expression of specific nerve antigen, including nestin, Musashi, transcription factor, and cell adhesion molecules; self-renewal ability including single cell clone analysis, BrdU mark and S phase cell; the potential of multi-direction differentiation including immunocytochemical process and reverse transcriptase polymerase chain reaction.

由于神经干细胞的数量很少，从细胞形态来看神经干细胞为圆形或椭圆形，无或有较短的突起，核质比大，核染色较深，形态上与其它种类的细胞没有明显的差异，并且未找到一种细胞表面特异性标志物，因此目前鉴定神经干细胞主要有以下3个方面：特异性神经抗原的表达，包括巢蛋白、Musashi、转录因子及细胞黏附分子；自我更新能力，包括单细胞克隆分析、BrdU标记S期细胞；多向分化潜能，包括免疫细胞化学法、聚合酶链反应色法。

It was shown that the mass transfer kinetics were fast.

实验结果表明色谱过程中的传质动力学较快。

Water distillation method was used for extracting the volatile oil in the Aucklandia lappa Decne.

采用水蒸气蒸馏法从木香中提取挥发油，用气相色谱-质谱联用仪对木香挥发油进行化学成分的分析。

A stomach large volume injection/gas chromatography-mass spectrometry(LVI/ GC-MS ) coupled with solid phase extraction method for the determination of 13 pesticide residues in rice sample was presented in this paper.

利用固相萃取柱对样品进行前处理，采用胃袋式大体积进样技术结合气相色谱-质谱，建立了大米中13种有机磷农药的快速分析方法。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。