Abstract
A manganese analyzer powered by micro-diaphragm pumps has been developed to monitor time-series changes of manganese concentrations in seawater in situ. The analyzer determines the concentration of dissolved manganese in a continuous manner using a H2O2-luminol CL method. The analyzer uses micro-diaphragm pumps to propel solutions. This pump possesses the following advantages for long-term observations: (1) reducing the pump size and power requirements and (2) small flow rate. In the present case, the power requirements and reagents flow rate could be reduced by using a thin Teflon tube (0.5 mm I.D.), and had a 98% response time of approximately 6 min, the same as before.
