SELECTRA EThe quality control of this machine, it was used up to 15 different controls and was used up to 3 samples per test. The rule that this machine used was Westgard Rules and Levey-Jennings plot. This machine gives a lot of benefit. First, this machine used reagent motor that can hold 32 individuals lab reagent, so it will save out time operation. Second, this machine has board cooling for reagent chamber, so it will ensure the reagent stability. Besides, this machine just need low sample of volume compare to some other machine that require 200 l per test. This machine only need about 1-30l per test, so it will save our sample. Furthermore, this machine provides the automated wash system, so it will be much easier for us to wash the apparatus such as cuvette. Besides, this water system will ensure the cuvette more sterile and less contaminates compare to external water system. In conclusion, if we used his machine, we can get the high quality of result.Examples for the test that can be used in this machine are general chemistry assay that used bilirubin and albumin. Besides, it also can be used for enzyme assay such as alanine aminotransferase (ALT) and amylase. For the lipid assay, it can be used for direct LDL and HDL. Furthermore, for electrolyte assays, it can be used for carbon dioxide and chloride. Lastly, for drug assay, this machine can be used for phenytoin and theophyline.