NIST micronutrients measurement quality assurance program winter, spring, and fall 1998 comparability studies : results for round robin XLII, XLIII, and XLIV fat-soluble vitamins and carotenoids in human serum and round robin 11 ascorbic acid in human serum
Chemical Sciences Division, Materials Measurement Laboratory
Chemical Sciences Division, Materials Measurement Laboratory
Chemical Sciences Division, Materials Measurement Laboratory
Chemical Sciences Division, Materials Measurement Laboratory
Chemical Sciences Division, Materials Measurement Laboratory
National Institute of Standards and Technology
US
Gaithersburg