It is not superior to the old reliable tests once performed by Gettler, but the new technology is able to isolate compounds and substances much more efficiently, but is equivalent to the old methods. used. Toxicology is an important field in chemistry; it implies important information about our life. Without the development of this branch of science, as well as forensic science, many of us would not be here today. Toxicologists must be highly experienced and trained in this field, be able to be extremely methodical and they must bear the burden of deciding what constitutes poison and how it can be harmful to health.