Screening of folate status with use of dried blood spots on filter paper.


BACKGROUND Dried blood spots (DBS) on filter paper have been a successful and economical matrix for neonatal screening. OBJECTIVE Our objective was to develop and evaluate an optimized method for DBS folate analysis and to assess DBS folate stability. DESIGN DBS were eluted from paper by sonication in 5 g ascorbic acid/L containing 0.1% (by vol) Triton… (More)


7 Figures and Tables