Those working in the field of microbiology generally work as lab assistants, studying living organisms and infectious agents. Biological technicians also analyze organic substances, such as blood, food, and drugs, and some examine evidence in criminal investigations. Biological technicians working in biotechnology labs use the knowledge and techniques gained from basic research by scientists, including gene splicing and recombinant DNA, and apply these techniques in product development. Chemical technicians work with chemists and chemical engineers, developing and using chemicals and related products and equipment. Most do research and development, testing, or other laboratory work.
Some chemical technicians collect and analyze samples of air and water to monitor pollution levels.
Those who focus on basic research might produce compounds through complex organic synthesis. Chemical technicians within chemical plants are also referred to as process technicians. They may operate equipment, monitor plant processes and analyze plant materials. Environmental technicians perform laboratory and field tests to monitor environmental resources and determine the contaminants and sources of pollution. They may collect samples for testing or be involved in abating, controlling, or remediating sources of environmental pollutants.