Research conducted by the Universitas Padjadjaran (Sumedang, Indonesia) focused on the measurement of vitamin K1 in various vegetables (specifically lettuce, cabbage, napa cabbage, and spinach) that ...

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A pure substance will only produce one spot on the chromatogram during paper chromatography ... blue and yellow are three pure substances. The sample on the left is a mixture of all three.

is designed to eliminate manual sample preparation for ion chromatography. MISP includes several techniques developed by Metrohm that will enable users to fully automate the preparation of all types ...