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What Is Calcium? Answered By A Nutritional Therapist

The analytical process for the oxalate measurement in urine has been previously published . Organic acids have been extracted from a .1-ml aliquot of acidified urine and derivatized with N-methyl-tert-butyldimethylsilyltrifluoroacetamide. Samples were measured by gas chromatography–mass spectrometry. The ions m/z 261.three, 263.three, and 276.three were applied to...