ISOLATION OF PARABENS FROM PHARMA CEUTICALS AND COSMETICS

2006-07-19 14:59  下载量:124

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Sample Preparation Weigh 0.1 to 1gm. Of hand lotion, shampoo, cosmetics etc., into a 15mL centrifuge tube. Add 5 to 10mL of methanol and agitate on a vortex mixer; centrifuge. Add 100uL of supernatant to a 2mL volumetric flask, and dilute to mark with distilled water.

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