Place the double filter paper containing the dry residue in an extraction thimble (4.2) and cover with a fat-free wad of cotton wool. | Introducir el papel de filtro doble que contiene el residuo seco en un cartucho de extracción (4.2) y cubrirlo con un poco de algodón hidrófilo exento de grasa. |
Weigh 5 g of the sample to the nearest 1 mg, transfer it to an extraction thimble (4.2) and cover with a fat-free wad of cotton wool. | Pesar, con una precisión de 1 mg, 5 g de la muestra, pasarlos a un cartucho de extracción (4.2) y cubrirlos con un poco de algodón hidrófilo exento de grasa. |
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