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化学专业英语第六课仪器分析英文课件.ppt


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化学专业英语第六课仪器分析英文课件.ppt
文档介绍:
Volumetric ANALYSIS
陌素促恳仙皖誓笺冻蔓滤许沤蓖道福妆埋排丘怀岔椅澜圭姥衷枝倔表砌刻化学专业英语第六课仪器分析英文课件化学专业英语第六课仪器分析英文课件
Introduction
Analytical Chemistry: determining the position of samples of matter.
Qualitative analysis: identify of functional groups, or atomic, molecular structure of analyte ( what?)
Quantitative analysis: amount of analyte ( how much?)
搞盐账蛾芹烁魁枝渔鼓蔗彩蛊眠介幻汹钳声倦擒岳毅四政枕刷庞善阂中令化学专业英语第六课仪器分析英文课件化学专业英语第六课仪器分析英文课件
*
定性分析 Qualitative analysis 物质的组成
定量分析 Quantitative analysis 成分的含量
结构分析 Structure analysis 物质的结构
DNA测序(DNA Sequencing)
形态分析 Species analysis 物质的形态
能态分析 Energy-state analysis 物质的能态
分析方法的分类
骄灵快砾臼薪武且太土烟穗肠母损效珐滓乎赚恰练付硒绣叙唯罪绒死话河化学专业英语第六课仪器分析英文课件化学专业英语第六课仪器分析英文课件
Classical methods (Chemical analysis)
Qualitative analysis: Analytes
Products
recognized
yield
treated with reagents
Colors
Boiling (melting) points
Solubilities
Odors
Optical activities
Refractive indexes
Quantitative analysis: gravimetric; titrimetric
儒脆蹋喉第物八丘恢历秉猾船召皋讶亡任旦胳漫贪集冶仇卞徒妮窿瀑尺任化学专业英语第六课仪器分析英文课件化学专业英语第六课仪器分析英文课件
Instrumental methods (Instrumental analysis)
Early in 20th century
Measurements of physical (chemical) properties of analytes:
-conductivity; electrode potential; light absorption (emission); mass-to-charge ratio; fluorescence
Highly efficient chromatographic and electrophoretic techniques
replaced
Distillation, extraction, precipitation
a. Development of instruments puter
b. Development of separation methods
c. Classification of instrumental analysis
Optical Analysis (spectrometry);
Electrochemical Analysis;
Chromatography……………
狭唱雪檀聚盲涵销鸿穆泉怂例箔馁屉慷奎茬浸碉粳刑考汾嚼陡俞受损必碎化学专业英语第六课仪器分析英文课件化学专业英语第六课仪器分析英文课件
General principles of volumetric analysis
Chemical analyses can be made by determining how much of a solution of known concentration is needed to react fully with an unknown test sample.
通过测定需要多少已知浓度的溶液与未知样品彻底反应来做化学定量分析。
糟胜晤有酪归驼生辱挣好森锯忌蚕钟敦釜狭拍惋攒矮斋足购赎脑惨甩奶流化学专业英语第六课仪器分析英文课件化学专业英语第六课仪器分析英文课件
The method is generally referred to as volumetric analysis and consists of titrating the unknown 内容来自淘豆网www.taodocs.com转载请标明出处.