Essays on Quinine

Abstract

The term "opiate" combines substance extracted from opium, the most important of which is morphine, codeine, papaverine, which is widely used as medicines and paramorphine - used mainly in medical industry to produce medications, as well as synthesized derivatives of morphine, which belong to the semi-synthetic opiates and among which the most famous for their narcotic properties is heroin. Substances, differ in structure from the structure of morphine but operating on a similar mechanism (through opioid receptors), are belonged to the opioids (Kuehn, 2007). A rich lexicon of slang in relation to opiates (especially heroin) reflects not only the " ...

Introduction

Quinine is a basic organic amine which is found in the bark of cinchona tree. It has a long history of relationship with humanity. The extracts from the bark containing quinine were used to treat malaria from the 17th century but as a pure chemical substance, it was isolated from the bark only in 1820 (Achan et al. 144). Its chemical formula is C20H24N2O2, according to IUPAC its systematic name is (R)-(6-Methoxyquinolin-4-yl)((2S,4S,8R)-8-vinylquinuclidin-2-yl)methanol. Its structure is shown in Fig. 1. Quinine is used for a variety of purposes. It is still used for ...

Introduction

Cellular respiration and photosynthesis are vital reactions in living organisms since without the two; there would be no life on earth. Cellular respiration involves a set of metabolic reactions that take place in cells of living organisms thereby converting nutrients like sugar into adenosine triphosphate (ATP) (Osterhoudt & Barhydt, 2010). On the other hand, photosynthesis involves the conversion of carbon dioxide into organic compounds by the photoautotroph in the presence of sunlight. Most animals attain their energy requirements through cellular respiration while on the other hand; photosynthesis is performed by most plants that can make their food. These two reactions ...

Fluorescence Analysis of Quinine in Tonic Water

1. Summary

Fluorescence Spectrometry like other spectrometry methods uses absorption to excite fluorescent species so that the difference between the excited-state molecules and the ground state can be measured and used to identify species and measure related concentrations. The instrument used for this experiment is a Cary Eclipse fluorescence spectroscope. The measurements were of the excitation wavelength and emission wavelength. The intensity of an unknown standard solution, the tonic water spiked with standard solution, was measured.

The measurement of the excitation wavelength for the Stock Standard 1 was 345 nm and the emission wavelength was 450 nm. The concentration of ...