Measurement Method of Nutrient using Principal Component Regression

Some of the environmental factors such as salinity, dissolved oxygen, chlorophyll concentration, and so on, can be measured by electric or optical sensor. It enables to measure these continuously and automatically with high resolution in time and space. It is very important for monitoring of marine environment. In order to understand ecosystem of sea in detail, distribution or change of nutrient concentration should be measured in terms of primarily production. Generally, since seawater contains high concentrations of chloride, bromide and so on, nutrient must be extract from these ions. It has brought difficulty of measuring automatically. The water sampling and chemical analysis in the laboratory has been always made. In this paper, a simplified method for measuring nitroxide concentration in seawater using ultraviolet spectrometry and PCR is proposed. The present method is superior to the conventional one in terms of the non-necessary chemical processing and filtration of seawater.