Biochemistry Analysis can be achieved through a number of techniques. The device called biochemistry analyser is designed to performed a variety of biochemical tests. It was invented by Hans Baruch and commercially introduced to the medical community in 1959.
Ever since, the biochemical analyser has allowed medical laboratories and hospitals to process significantly more samples in a shorter amount of time, and more effectively. With this automated biochemical analysis instrument, the amount of time necessary for such tests has sharply reduced from days (even weeks, sometimes) to a few minutes.
Before the biochemical analyser, the most common method used involved open test tubes placed in racks, then moved along a track or spun in a carousel. In order to protect the samples from contamination, as well as to protect the laboratory staff from illness or injury, this method soon evolved to closed tube sampling.
Contrary to popular belief, the introduction of automated biochemistry analysers did not remove the need for clinical lab technicians, but it did improve conditions and made the laboratory a safer working environment, while also reducing errors.
A biochemical analyser can perform a variety of tests, ranging from testing enzymes for liver function tests to testing ions for sodium and potassium levels. In addition, this biochemistry analysis instrument can also analyze blood glucose, creatine, serum albumin (a plasma protein) and others.
Basically, there are three categories of biochemistry analyzers: the wet type, the dry type and the bio sensor.
- The wet type analyzer involves mixing a test sample with a reagent to encourage a chemical reaction. A spectrophotometer, a calorimeter or another such reading device can then be used to read the color change before and after the reaction, allowing for thorough analysis. This technique, however, requires expensive instruments, as well as the ability to keep reagents valid for long periods of time.
- With the dry type biochemistry analyser, a chemical reagent such as an antibody or enzyme must be applied to a test strip. It will react directly with the test sample. On the other hand, this method involves a greater risk of oxidation of the test strip, which can in turn result in faulty readings.
- With a bio sensor type biochemistry analyzer, the test sample may be oxidized and placed on a thin film. The film is then placed onto the surface of an electrode, such as hydrogen peroxide or pillar, and then a polarized potential is applied to the anode and cathode. The electrodes thus released may be measured. On the downside, the pillar electrodes require constant maintenance, which can lead to cross pollution, which can in turn result in faulty readings.
In some cases, more specialized tests are required and a separate biochemistry analyzer is necessary. This analyzer can be used either for several tests or a single test. Still, most tests are expensive to perform and quite time consuming. Manufacturers are currently working to develop automated systems for these rare tests, as there is a shortage of skilled clinical laboratory professionals.
Due to the advance and recent contributions in chemistry, biology and genetics, the biochemistry analyzer has also been evolving and constantly improving. Biochemical research is moving forward, advancing from the study of a few molecules to the functional study of all biomolecules. Biochemical analyzers are currently being used to help tag proteins and nucleic acids with special dies in order to help scientists sequence the human genome.