The term total analysis system (TAS) describes a device that automates and includes all of the necessary steps for the chemical analysis of a sample (e.g. sampling, sample transport, filtration, dilution, chemical reactions, separation, and detection). Most of the current total analysis systems are "micro" total analysis systems that utilize the principles of microfluidics.
Total analysis systems shrink a whole laboratory to a chip-sized lab-on-a-chip and due to its extremely small size, can be placed close to a sampling site. It can be cost-effective taking into account chip technologies, sample sizes, and analysis time. It also reduces the exposure of lab personnel to toxic chemicals, which is an advantage compared to conventional techniques. This technology can be used in point-of-care testing or point-of-use diagnostics which do not require skilled technicians. During pandemics this can save the lives of medical providers.