Synonym(s):
24h urine in 15 mL 50% HCl
Minimum aliquot volume : 30 mL
Total 24 hr urine volume must be clearly indicated
Spectrophotometry
≥ 13 yrs : M 80 - 490; F 40 - 340 µmol/day
Mean = 7 days, Range: 3 – 11 days
Monday – Friday
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