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Publikováno v:
Ciencia e Investigación; Vol 23 No 2 (2020); 35-39
Ciencia e Investigación; Vol. 23 Núm. 2 (2020); 35-39
Ciencia e Investigación; Vol. 23 Núm. 2 (2020); 35-39
In this research study, the concentration of arsenic and lead was determined in eight different brands of lipsticks that are marketed in Metropolitan Lima. Materials and methods Non-experimental cross-sectional design the analytical method used was a