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	1.	Replacing dichromate with hydrogen peroxide in the chemical oxygen demand (COD) test. [electronic resource] by Carbajal-Palacios, Patricia Balderas-Hernández, Patricia Ibanez, Jorge G Roa-Morales, Gabriela Producer: 20120925 In: Water science and technology : a journal of the International Association on Water Pollution Research vol. 66 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	Downscaling the chemical oxygen demand test. [electronic resource] by Carbajal-Palacios, Patricia Balderas-Hernandez, Patricia Ibanez, Jorge G Roa-Morales, Gabriela Producer: 20140505 In: Environmental technology vol. 35 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)

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