新款刀式混合研磨仪GM300是对食品类物质的研磨、均质化处理的理想仪器。它可以快速、可重复性的一次处理4.5L的样品。

陶瓷材料是一种磨料制品，更具耐磨性的筛网和转子是最好的选择。 推荐：对于脆性、干性陶瓷催化剂样品的研磨，可采用SR300 旋转敲击式研磨 仪进行处理。

所选仪器：行星式球磨仪PM100 所选配置：500ml 不锈钢舒适型研磨罐；20 个直径20mm 的不锈钢研磨球 参数：转速550rpm；反转模式（间歇时间3min） 时间：10min 实验结果：74%<100um 评论：研磨罐完全填满样品 推荐：对于木质样品的精细研磨，PM100 是可以满足以上要求的。

研磨材料：枸杞子 研磨方式：加干冰 样品类型：无水份，含糖份 进样尺寸：<10mm 出样尺寸：<300um 使用仪器：GM200刀式研磨仪 研磨速度：10000转/分钟 研磨时间：30秒 使用容器：PP(聚丙烯) 1000ml 重力顶盖

应用领域：生物 样品：玉米叶片 进样尺寸：小于6mm 进样量：5 片 客户要求：用于DNA 的提取 后续分析：DNA 分析 所选仪器：MM400 混合研磨仪

应用领域：生物 样品：稻草 进样尺寸：35-40mm 进样量：每罐12g 样品性质：纤维性 客户要求：每批次磨碎此尺寸的样品8 个 后续分析：DNA 的分析 所选仪器：MM400 混合球磨仪

研磨材料：元术 样品类型：纤维质性 进样尺寸：10~40mm 出样尺寸：<500um 使用仪器：先用SM100预处理，然后再用GM200刀式研磨仪 研磨速度：10000转/分钟 研磨时间：50秒 使用容器：PP(聚丙烯) 1000ml 重力顶盖

电磁辊分离器存在一个严重的缺点就是在用于弱磁性物质选矿时,需要频繁的持续的维持驱动和保持方向.此外,Ukraine 和 Russia 的磁辊能耗通常比电磁选仪的磁线圈的能耗大很多.稀土元素氧化物,磁辊分离和鼓槌分离存在同样的缺陷.但电磁选分离器克服这些缺点........

本文详细的介绍了利用Frantz电磁选仪对石英进行提纯.

确定磁性流体中微晶体的密度的技术已经可以确定密度低至0.004 mg的样品.测量密度范围至少为21.4 g/rnl,这一点远远超过了重性流体的技术的测量范围.实验室设备采用的是 Frantz 等磁选仪.

A pot experiment focused on the study of factors influencingthalliumtransferfromcontaminatedsoilsintokale(green cabbage, Brassica oleracea L. var. acephala, variety Winterbor F1) was evaluated. Threedifferenttypesoftopsoils with naturally low content of thallium (heavy, medium and medium-light soil) were used for pot experiments. Thesoilswerecontaminatedwiththalliumsulfatetoachievefivelevelsofcontamination(0,0.52,2.10,4.20and 5.88 mg/kg). Thereweresixreplicatesforeachcombination(90potsintheexperiment).Thefirstpartof theexperiment started in the year of contamination (2001) and continued in 2003. Thesoilsamplesandthesamplesofkale (leaves and stalks were sampled separately) were collected and analysed. Kale was found to be able to accumulate Tl without any influenceonyield.Thehighestthalliumconcentrationwasfoundintheleavesofkaleinthefirstyear of the experiment and reached 326 mg/kg dry matter. Bioaccumulation factor (Biological Absorption Coefficient – BAC) was found to be over 80 during the firstyearoftheexperiment.InthethirdyeartheBACwasaround3 for the soil with the highest pH and the highest organic matter content but as high as 15 for an acid soil with the lowest content of organic matter and the lowest Cation Exchange Capacity (CEC) of soils.

本文简要的描述了在实验室中丙烯酰胺的测定方法.

分析药片和其胶囊的有效成份,关键是将每一个独立的样品研磨达到匀质化程度.注意不能产生有效成份的改变和污染,选择实验室研磨设备至关重要.

Abstract Fluctuations in wetland hydrology create an interplay between aerobic and anaerobic conditions, controlling vegetation composition and microbial community structure and activity in wetland soils. In this study, we investigated the vegetation composition and microbial community structural and functional changes along a wetland 5 hydrological gradient. Two different vegetation communities were distinguished along the hydrological gradient; Caricetum gracilis at the wet depression and Arrhenatherum elatioris at the drier upper site. Microbial community structural changes were studied by a combined in situ 13CO2 pulse labeling and phospholipid fatty acid (PLFA) based stable 10 isotope probing approach, which identifies the microbial groups actively involved in assimilation of newly photosynthesized, root-derived C in the rhizosphere soils. Gram negative bacterial communities were relatively more abundant in the surface soils of the drier upper site than in the surface soils of the wetter lower site, while the lower site and the deeper soil layers were relatively more inhabited by gram positive bacte15 rial communities. Despite their large abundance, the metabolically active proportion of gram positive bacterial and actinomycetes communities was much smaller at both sites,

The application for this fellowship followed the attendance by Professor Yongguan Zhu at the International Grassland Congress held in Dublin in July 2005. The visit to Dublin re-established a previous link between Professor Zhu and Dr Peter Christie of Queen’s University Belfast and the Department of Agriculture for Northern Ireland (DARD). During the Congress both Dr Christie and Professor Zhu felt that a DARD long-term slurry experiment would provide an excellent opportunity to investigate the influence of soil nutrient management on grassland diversity and productivity, particularly from the point view of ecological stoichiometry following long-term inputs of different nutrient sources and levels.

详细的介绍了基因研磨仪的安全操作步骤

在American和European 欧洲市场上的许多中国产电子玩具被检测出含有重金属物质,所以 RoHS指令越来越受到各界重视.Retsch公司的研磨设备被相关专业检测机构认定为RoHS指令粉碎检测设备.

摘　要：采用室内盆栽试验，研究了不同氮肥施用量对水稻铁、锰、铜、锌含量和稻米品质的影响。随着氮肥使用量的增加，与对照相比，４种微量元素在稻株地上部组织中的含量增加。施氮水平对两个品种徽量元素含量的总体影响趋势一致， 只是在稻株中含量不同，表明施氮量对品种的特性表达没有影响。糙米中微量元素含量随着施氮量的增加表现出先升高后 降低的趋势，其中以氮肥使用量在１６０ｋｇ／ｈｍ２ 时增幅最大。此时，ＩＲ６４的糙米中的铁、锰、铜、锌含量分别比对照增加２８． ９６％、４１．３４％、５８．３１％ 和１６．０％，而ＩＲ６８１４４ 的糙米铁、锰、铜、锌含量分别比对照增加２２．１６％、１３．７５％、８．７５％ 和 ２０．２１％。同时，随着氮肥使用量的增加，籽粒蛋白质含量增加，直链淀粉含量降低，糙米的胶稠度变大。说明合理的氮肥管 理措施可在一定程度上调控籽粒微量元素积累，改善稻米营养品质。

Abstract Advanced glycation endproducts (AGEs) have been implicated in the pathogenesis of diabetic kidney disease. The actions of AGEs are mediated both through a non-receptor mediated pathway and through specific receptors for AGEs (e.g. RAGE). To explore a potentially specific role for RAGE in renal changes in type 1 diabetes,we examined the renal effects of a neutralising murine RAGE-antibody (ab) in streptozotocin (STZ)-diabetic mice, a model of type 1 diabetes. One group of STZdiabetic mice was treated for two months with the RAGE-ab, while another STZ-diabetic group was treatedfor the same period with an irrelevant immunoglobulin G (IgG). Two groups of non-diabetic NMRI mice were treated with either RAGE-ab or isotype-matched IgG for two months. Placebo-treated STZ-diabetic mice showed an increase in kidney weight, glomerular volume, basement membrane thickness (BMT), urinary albumin

研究目的是识别并确定血清标记是结肠癌的早期肿瘤检测的关键. 试验设计:两维凝胶电泳和 质谱分析. 我们分析了16个结肠癌和相近的正常组织样本.通过产生的抗体,进一步确定了在癌组织中发现的蛋白. 这种抗体是用于评定组织样品的immunoblotting和样本血清高敏感免疫测定的发展.

1 蛋白复合体的纯化和背景质谱分析(AP-MS) 2 AP-MS 的每一步的细节 3 AP-MS 局限性和Proteomic 的发展 污染/非专一交叉影响 化学计量法 多样性 瞬时交叉影响

蛋白联合体通过紧密附属蛋白的分离为生物系统的研究提供了强有力的工具,但是此项技术常常受非专一性蛋白交叉影响.我们发现了一个新的技术方法(I-DIRT)来区分免疫纯化产生的污染,克服了在蛋白联合体识别问题中的最具有挑战的问题.I-DIRT在生物学系统研究中具有非常广泛的应用价值.

Yeast spaghetti are produced by pressing yeast through small holes into a beaker filled with liquid nitrogen. The holes (~1.0mm Ø) are punched into the bottom of a 50mL Falcon tube that contains 10-20mL of pelleted yeast obtained after centrifugal harvest of a 2L late log. culture. Pressure is employed manually by inserting the piston of a 60mL disposable syringe into the tube. Yeast spaghettis (treated with protease inhibitors) can be stored at -80°C.

DNeasy 96植物技术：使用球磨MM 400从新鲜植物叶片中分离DNA. 1.开始使用本实验方法之前花时间熟悉基因研磨仪MM 400和离心机4-15C/ 离心机4K15C 2.本方法用来对2×96=192个样本进行提取DNA，如果希望处理96个或更少样本，要对基因研磨仪MM 400进行平衡处理，方法是用一架没有样本和缓冲液但装有碳化钨珠子的收集微型管插入第二个孔板，并用空夹子加入固定 ........

本款液压手动式颗粒压制机PP 25是一台设计紧凑实验室设备，操作起来相当简单而且安全。它能产生的最大压力为25吨，尤其适合于制备用于X射线荧光分析的固体样品。其压制而成的样品片质量非常好，表现出很高的稳定性。

minipilot – 小型玻璃反应设备 反应釜可更换 不占空间设计 高效能多用途反应釜 5 – 15 升反应釜 全真空至 +0.5 bar -60°C (-80°C) to +200°C

• 应用领域：粉碎、混合、均化以及细胞破碎 • 样品特征：软性、中硬性、硬性、脆性、弹性、纤维质 • 进样尺寸*：不超过 8 毫米 • 最终出样尺寸*：约 5 微米 • 批次加料量*：最大 2 x 20 毫升 • 典型粉碎时间：2 分钟 • 干磨/湿磨/低温碾磨：可以 • 使用反应用玻璃瓶进行细胞破碎：最多 192 x 0.5 毫升 • 带丝扣旋紧盖的碾磨罐：1.5 - 50 毫升 • 带自动中心定位的紧固装置：是 • 碾磨平台数（可接纳碾磨罐数）：2 • 粉碎时间数码预设：10 秒 - 99 分钟 • 参数锁定功能：有 *受样品材料性质和仪器配置/设定的影响

混合型碾磨仪MM 301是实验室的“必配仪器”。它主要用于小量样品的干磨、湿磨以及低温碾磨，只需要极短的时间就可以达到混合、均化粉末和悬浮物的目的。大多数X-荧光分析的实验室，在分析样品前，需要对样品进行研磨处理。并对研磨设备的选择有严格的要求，以防止样品在研磨过程中受到污染。