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The Extraction Procedure - Behr Labortechnik GmbH
瀏覽：1183
日期：2026-04-24
— 7 — Mix the liquid sample with sand and anhydrous sodium sulfate. Use a cotton swab, which has been moistened with extraction solvent, to wipe the sample into the extraction thimble. Close the extraction thimble with a fat-free cotton wad Insert the thi...看更多
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