[A]rm's length has generally been defined to mean that there are no bonds of dependence, control or influence, between the corporation and the person in question.. In MNR v Sheldon, Justice Esson of Canada's Supreme Court wrote:
Analytical chemistry focuses on the chemical composition and function of matter. Analytical chemists are concerned with reaction rates and levels of chemicals in different types of matter. For example, an analytical chemist might test a patient's blood to investigate how a medication is working.
Organic chemistry deals with, well, organic compounds, which are compounds that contain Carbon (with the exception of carbides, carbonates, carbon oxides and elementary carbon.) It deals with their reactions, their reaction mechanisms their synthesis, naming, etc. Inorgnic chemistry deals with inorganic compounds.