仪器网

欢迎您: 免费注册 仪器双拼网址:www.yiqi.com
首页-资讯-资料-产品-求购-招标-品牌-展会-行业应用-社区-供应商手机版
官方微信
中国仪器网• 行业应用
应用首页 解决方案 行业标准
应用
  • 产品
  • 企业
  • 品牌
  • 资料
  • 问答
仪器网/ 行业应用/ 解决方案/ 调制MDSC技术原理

调制MDSC技术原理

点击这里给我发消息
内容节点
概述
实验/设备条件
样品提取
实验/操作方法
实验结果/结论
仪器/耗材清单
Modulated DSC (MDSC) can be easily understood by comparing it to its well-established precursor, differential
scanning calorimetry (DSC). Conventional DSC is an analytical technique in which the difference in heat flow between
a sample and an inert reference is measured as a function of time and temperature as both the sample and reference are
subjected to a controlled environment of time, temperature, atmosphere and pressure. The schematic of a typical heat
flux DSC cell is shown in Figure 1. In this design, a metallic disk (made of constantan alloy) is the primary means of
heat transfer to and from the sample and reference. The sample, contained in a metal pan, and the reference (an empty
pan) sit on raised platforms formed in the constantan disk. As heat is transferred through the disk, the differential heat
flow to the sample and reference is measured by area thermocouples formed by the junction of the constantan disk and
chromel wafers which cover the underside of the platforms. Chromel and alumel wires attached to the chromel wafers
form thermocouples which directly measure sample temperature. Purge gas is admitted to the sample chamber through
an orifice in the heating block wall midway between the raised platforms. The gas is preheated by circulation through
the block before entering the sample chamber. The result is a uniform, stable thermal environment which assures
excellent baseline flatness and exceptional sensitivity (signal-to-noise). In conventional DSC, the temperature regime
seen by the sample and reference is linear heating or coo领 at rates from as fast as 200°C/minute to rates as slow as
0°C/minute (isothermal). DISCOVERY 差示扫描量热仪
相关产品
相关解决方案
其他解决方案
最新解决方案
厂商产品资料
在线留言
关于我们 | 诚聘英才 | 客户投诉 | 本站服务 | 会员中心 | 买家中心
仪器网(www.yiqi.com) --专业分析仪器,检测仪器平台,实验室仪器设备交易网,仪器行业专业网络宣传推广媒体。
仪器网(www.yiqi.com)--仪器拼音域名网址,简单,易懂,好记,可信; 符合仪器用户的记忆和使用习惯,是仪器选型采购的专业平台。
销售电话: 400 822 6768 企业销售咨询: 021-68559399 021-68551566 VIP会员售后QQ: 83550177 VIP会员销售QQ: 65884322
网站售后: 021-50353779 综合业务QQ: 11694366 免费企业会员售后QQ: 932545765 展会合作QQ: 784540580 仪器求购QQ: 61224355
Copyright 2004-2024 www.yiqi.com All Rights Reserved. 沪ICP备16012899号 沪B220170422号 互联网药品信息服务资格证书 沪公网安备 31011502008050号

沪公网安备 31011502008050号


若仪器网内容侵犯到您的权益，请及时告诉我们,我们马上修改或删除。邮箱：hezou_yiqi@163.com
官方微信

仪器网微信服务号

扫码获取最新信息


仪器网官方订阅号

扫码获取最新信息

在线客服

咨询客服

在线客服
工作日:  9:00-18:00
联系客服 企业专属客服
电话客服:  400-822-6768
工作日:  9:00-18:00
订阅商机

仪采招微信公众号

采购信息一键获取海量商机轻松掌控