Abstract
With the improvement of people's living standards, more and more people choose to use some color materials to decorate the tile surface and increase the strength of ceramic tiles. However, the lead and cadmium ceramic tiles will be dissolved out under the action of acid. Moreover, the dissolved lead and cadmium and other heavy metals can affect the liver, nervous system, and hematopoietic function of human, and even paralyze people after respiratory ingestion. In this paper, an experimental control method was adopted to investigate the problems that may occur during the laboratory testing of lead in ceramic tiles. Experimental methods such as single-factor experiments and controlled tests were used in the experiments. By controlling and comparing the variables affecting each step of the experimental pre-treatment, the extraction solution was obtained and the concentration of lead in the extraction solution was determined by an atomic spectrophotometer.
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