A-level化学质谱仪及质谱知识点

参加A-level考试,不少同学选择参加考试科目的时候,会选择化学课程,但是化学课程并不是很简单,需要大家用心用脑,那么备考A-level化学考试,有什么好的方法吗?今天我们就为大家分享质谱仪及质谱知识点。

ALevel化学知识点详解

涉及到知识点:

Mass spectrometer(质谱仪)

Edexcel考试局大纲要求:

be able to predict mass spectra, including relative peak heights, for diatomic

molecules, including chlorine, given the isotopic abundances

CAIE考试局大纲要求(9701):

a) analyse mass spectra in terms of isotopic abundances

(knowledge of the working of the mass spectrometer is not required)

b) calculate the relative atomic mass of an element given the relative

abundances of its isotopes, or its mass spectrum

The principles of a simple time of flight (TOF) mass spectrometer, limited to ionisation, acceleration to give all ions constant kinetic energy, ion drift, ion detection, data analysis.

The mass spectrometer gives accurate information about relative isotopic mass and also about the relative abundance of isotopes.

Mass spectrometry can be used to identify elements.

Mass spectrometry can be used to determine relative molecular mass.

讲解内容:

Mass spectrometer的工作原理

包括Ionisation、acceleration、deflection等等

质谱(Mass spectrum)的相关计算

如何认知质谱(Mass spectrum)以及利用质朴计算相对原子质量Ar

适用于考试局:

AQA、Edexcel、CAIE等

文章相关标签:

A-level考试

A-level化学

考试局

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