Para-aminobenzoic acid used as a marker for completeness of 24 hour urine: assessment of control limits for a specific HPLC method
Article Abstract:
Research of 24 hour urine completion suggests that the aged should have an advanced dosage schedule for para-aminobenzoic acid (PABA). The colorimetric diazocoupling method was compared with an HPLC method, with colimetry giving a substantially higher PABA recovery than HPLC. PABA recoveries were lower with the recommended schedule in comparison with the advanced dosage schedule. Younger and older subjects exhibited similar PABA recoveries in 24 hour urine under the HPLC method.
Publication Name: European Journal of Clinical Nutrition
Subject: Health
ISSN: 0954-3007
Year: 1997
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Validity of DISHES 98, a computerized dietary history interview: energy and macronutrient intake
Article Abstract:
This article evaluates a nutritional epidemiology study's ability to accurately measure dietary intake. Topics include a description of the study's design, data analysis, and computerized interviewing.
Publication Name: European Journal of Clinical Nutrition
Subject: Health
ISSN: 0954-3007
Year: 2001
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