Porphyrin fluorescence
Protect from light.
Sendaway - Biochemistry
Referred to external laboratory.
Samples not protected from light will require a recollect.
LabPlus
http://testguide.adhb.govt.nz/EGuide/?elv=1&name=Porphyrin%20tests&pn=2010&mn=981&sd=3&ts=14ce2ecab1d
PORBF