title: Stability of urinary HVA and VMA on filter paper.
abstract: The study examined the stability of HVA and VMA in 1-ml aliquots of a single urine sample stored on filter paper at different temperatures for 2 years. The results showed that HVA and VMA were stable in dried filter paper when stored at 4 degrees C or lower temperature. Storage at room temperature resulted in degradation of the sample.
authors.affiliation: Pediatric Research Unit, University of Sherbrooke Medical Center, Quebec, Canada.
authors.forename: D
authors.initials: D
authors.lastname: Cyr
authors.forename: R
authors.initials: R
authors.lastname: Giguère
authors.forename: M
authors.initials: M
authors.lastname: Tuchman
authors.forename: B
authors.initials: B
authors.lastname: Lemieux
mesh_terms: D006719:Homovanillic Acid / Q000652:urine*; D006801:Humans; D007231:Infant, Newborn; D015997:Neonatal Screening / Q000295:instrumentation / Q000379:methods; D009447:Neuroblastoma / Q000517:prevention & control* / Q000652:urine; D014642:Vanilmandelic Acid / Q000652:urine*
chemical_list: D014642:Vanilmandelic Acid; D006719:Homovanillic Acid