id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
cet-2129		cet-2129		6	.pdf	application/pdf	3081	134	48	393 4. Results 4.1 Exploratory Analysis The samples were collected on August 20th, 2016, to verify the presence of Cr (VI) in the waters of Ciénaga de las Quintas, in addition, pH values were obtained for each point marked in Fig. Few authors have statistically quantified the relationship between sample size or distance between samples, the spatial distribution of variables such as those discussed in this study, such as the concentration of Chromium VI in surface waters of Ciénaga de las Quintas and the pH of the medium and the error associated with the estimation of the mean.	cache/cet-2129.pdf	txt/cet-2129.txt