Although the application of solid phase techniques has simplified vitamin D metabolite extraction, care in the use of these cartridges needs to be exercised. It would appear from the results of this study that high pH ...

The aims of the present study were to evaluate the cation-exchange HPLC assay published by Coburn and Mahuren using 4'-deoxypyridoxine 5'-phosphate as an internal standard, to compare the accuracy of this method of pyridoxal ...

[No abstract available]

[No abstract available]

A complete methodology, incorporating a novel clean-up technique, for quantitative determination of amino acids in plasma by gas chromatography is described. Glucose, a component causing major analytical interference, is ...

Objective: To retrospectively evaluate the South African Continuing Professional Development (CPD) system (previous and current) for dietitians, by determining their perceptions of the system's implementation and participation ...

[No abstract available]

Objective. To assess the implementation of the vitamin A supplementation programme in primary health care (PHC) clinics in a rural area of the Western Cape Province. Material and methods. A study was conducted at 14 randomly ...

Objective. The aim of this study was to determine which foods and beverages contribute most (≥ 5% of total) to energy, macronutrient and micronutrient intakes of South, African children aged 12 - 108 months. It was also ...

[No abstract available]