The growth of the industrial and construction sectors continues to increase every year. In construction, the main material used is concrete. Concrete is composed of cement, aggregate and water. However, 8% of CO2 emissions in the world come from the cement manufacturing process. In the industrial sector, the paper industry is one of the industries that produces the most waste, around 48 tons of…
The research of manufacturing and performance test membrane Cd and Zn Ion Selective Electrodes (ISE) with chitin ionophore, polyvinyl chloride (PVC) support matrix and dioctylphthalate (DOP) plasticizer or acetophenon has been done. The membrane Cd ISE and Zn were made by mixing 0.075 g of chitin, 0.25 g of lithium chloride (LiCl), 6 g of N, N-dimethyl acetamide (DMA), 6 g of 1-methyI-2-pyrroli…