AQA A Level Chemistry復(fù)習(xí)筆記7.11.4 Gas Chromatography
Gas Chromatography Gas-Liquid Chromatography (GLC) is used for analysing: Gases Volatile liquids Solids in their vapour form The stationary phase: This method uses a long coiled colum...
AQA A Level Chemistry復(fù)習(xí)筆記7.11.3 Column Chromatography
Column Chromatography Column Chromatography In column chromatography, the column is often a long vertical glass tube or in the laboratory a burette is suitable An inert solid (usually powder...
AQA A Level Chemistry復(fù)習(xí)筆記7.11.2 Thin Layer Chromatography
Thin Layer Chromatography Thin-layer chromatography (TLC) is a technique used to analyse small samples via separation For example, we could separate a dye out to determine the mixture of dye...
AQA A Level Chemistry復(fù)習(xí)筆記7.10.3 13C NMR
13C NMR Nuclear Magnetic Resonance (NMR) spectroscopy is used for analysing organic compounds Atoms with odd mass numbers usually show signals on NMR For example, isotopes of atoms Many of t...
AQA A Level Chemistry復(fù)習(xí)筆記7.10.2 1H NMR
1H NMR Features of a?1H NMR spectrum NMR spectra shows the intensity of each peak against their chemical shift The area under each peak gives information about the number of protons in a par...
英國(guó)TOP大學(xué)不認(rèn)可哪些A-Level課程？附ALEVEL選課原則
A-Level課程，就是英國(guó)本土的高中課程。具有引進(jìn)時(shí)間早、“能偏科”、“重刷題”的特點(diǎn)，是很多留學(xué)生的首選。 不過(guò)A-Level多達(dá)70多門(mén)課程，主要分為： 1.核心基礎(chǔ)課程：主要有數(shù)學(xué)、物理、化學(xué)、生物、地理; 2.核心...
A-Level美國(guó)大學(xué)換學(xué)分攻略
在眾多家長(zhǎng)學(xué)生眼里，A-Level申英國(guó)，AP申美國(guó)，八竿子打不著。 好吧，說(shuō)個(gè)留學(xué)過(guò)期冷知識(shí)：A-Level，IB，AP都可以英美同申。而且A-Level可以在部分美國(guó)大學(xué)換分~ 事實(shí)上，A-Level課程的作用非常大，在美國(guó)和AP課...
AQA A Level Chemistry復(fù)習(xí)筆記7.7.5 Anticancer Drugs
Action of Anticancer Drugs In the 1960s the drug cis-platin was discovered, which has been extremely effective in treating a number of different types cancer such as testicular, ovarian, cer...
AQA A Level Chemistry復(fù)習(xí)筆記7.7.4 DNA
DNA The nucleic acid DNA is a?polynucleotide?– it is made up of?many nucleotides?bonded together in a?long chain A?nucleotide?is a building block consisting of a?phosphate group,?2-deoxyribo...
