标签归档：hgf

Whatman思拓凡HGF61 FPI玻璃纤维滤纸带 实验室耗材1820-30301

发表于由

Whatman思拓凡HGF61 FPI玻璃纤维滤纸带 实验室耗材

简要描述：

Whatman思拓凡HGF61 FPI玻璃纤维滤纸带，一般通过滤膜重量法进行监测和手工参比，即PM2.5和PM10监测。

WHATMAN HGF61玻璃纤维纸带PM2.5/10专用1830-10095 1820-30301

空气悬浮颗粒物(PM)是分布在大气中的一组复合物质，它们的直径从几分之一微米到几百微米不等。颗粒物质中zui重要的两个部分是可吸入性颗粒物（<2.5微米）和细颗粒物（<10微米）。一般通过滤膜重量法进行监测和手工参比，即PM2.5和PM10监测。绝大多数颗粒物重量测定方法都是基于将样品采集到一张重量稳定且低化学本底的滤膜上，该过程通常需要8个小时或更长的时间，通过测定采样前后滤膜的重量来评估环境空气或废气中颗粒物浓度。

产品详情：

1830-6236：HGF61 30MMx20M 轴内径 40MM 1/PK

1830-10095：HGF61 30MMx20M 轴内径 40.5MM 1/PK

1820-30301：HGF61 30MMx30M 毛面朝上 轴内径 50.8MM 1/PK

9713-900769：HGF61 30MMx25M 光面朝上 轴内径 50.8MM 1/PK

9713-900770：HGF61 30MMx25M 毛面朝上 轴内径 50.8MM 1/PK

Whatman思拓凡HGF61 FPI玻璃纤维滤纸带世界各地拥有数百万个环境监测网点，每一个监测点要求定期的、*性或抽样式地对空气、废气、水质及土壤污染质量进行科学监测和源解析分析，以帮助实施区域性的环境评估、环境保护及提升环境生态。

环境监测通常需利用EPA认证的标准化过滤分离耗材，如Whatman PM2.5聚四氟乙烯滤膜，源解析实验还需利用特殊过滤材料，比如高纯PTFE滤膜、QMA石英滤膜、酸处理无灰滤膜No.541、气溶胶膜Nuclepore、活性炭滤纸No.72等。

常见环境监测应用包括：

环境空气质量监测，如颗粒物PM1,PM2.5,PM10及TSP 污染物化学分析，如重金属、苯并芘、多环芳香烃、二恶英等

固定污染源废气监测

氟化物、硫酸盐、氨、六价铬等监测

石棉尘取样和镜检

气溶胶监测

放射性辐射监测，如碘131等


HGF R/ c-Met/ HGFR, Human, Recombinant

发表于由

HGF R/ c-Met/ HGFR, Human, Recombinant

货号：PCK028

价格：¥780¥1880¥8680¥12380

规格：

10µg

  • 10µg
  • 50µg
  • 500µg
  • 1mg

  • 产品概述
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产品概述

产品信息

别名 Hepatocyte Growth Factor Receptor; HGF Receptor; HGF/ SF Receptor; Proto-oncogene c-Met; Scatter factor Receptor; SF Receptor; Tyrosine- Protein kinase Met; MET
物种 Human
表达宿主 Human Cells
序列信息 asd
检索号 P08581
分子量 102.5 kDa
表观分子量 80-94&130 kDa
标签 C-6His
生物活性 Testing in progress

产品特性

纯度 >95% as determined by reducing SDS-PAGE.
内毒素 < 1.0 EU per µg as determined by LAL test.
保存 Lyophilized Protein should be stored at < -20℃, though stable at room temperature for 3 weeks. Reconstituted Protein solution can be stored at 4-7℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months.
运输 The product is shipped at ambient temperature.Upon receipt, store it immediately at the temperature listed below.
制剂 Lyophilized from a 0.2 μm filtered solution of PBS, pH7.4.
复融 Always centrifuge tubes before opening. Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100 μg/ml. Dissolve the lyophilized protein in distilled water Please aliquot the reconstituted solution to minimize freeze-thaw cycles.

背景介绍

Hepatocyte Growth Factor Receptor (HGF R) is a glycosylated Receptor tyrosine kinase that plays a central role in epithelial morphogenesis and cancer development. HGF R is synthesized as a single chain precursor which undergoes cotranslational proteolytic cleavage. Mature HGF R is a disulfide-linked dimer composed of a 50 kDa extracellular α chain and a 145 kDa transmembrane β chain. Proteolysis and alternate splicing generate additional forms of human HGF R which either lack of the kinase domain, consist of secreted extracellular domains, or are deficient in proteolytic separation of the α and β chains. The sema domain, which is formed by both α and β chains of HGF R, mediates both Ligand binding and Receptor dimerization. HGF stimulation induces HGF R downregulation via internalization and proteasomedependent degradation. Paracrine induction of epithelial cell scattering and branching tubulogenesis results from the stimulation of HGF R on undifferentiated epithelium by HGF released from neighboring mesenchymal cells.
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