A. Ekebom et al., DETECTION AND QUANTIFICATION OF AIRBORNE BIRCH POLLEN ALLERGENS ON PVDF MEMBRANES BY IMMUNOBLOTTING AND CHEMILUMINESCENCE, Grana, 35(2), 1996, pp. 113-118
Birch pollen and antigens were collected on sampling tape of the Burka
rd Seven-day-recording Pollen and Spore Trap before, during and after
the pollen season. The antigens were then transferred to a polyvinylid
ene difluoride (PVDF) membrane. For detection and quantification of th
e antigens a double antibody system and chemiluminescence was used. Th
e chemiluminescence-chemicals emit light at positions in the membrane
where antigen is present. The light produced was documented by contact
of the blotting membrane with x-ray film, and also measured with a ne
wly developed luminometer. Birch pollen antigenic activity was found o
n the tapes a few weeks before the local incipient birch pollen season
although no birch pollen grains were monitored on a control tape For
allergy information service. The concentration of small antigenic part
icles present in the air after rainfall is discussed.