25-Hydroxyvitamin D and 1,25-dihydroxyvitamin D determined in serum by "SPE-Octadecyl (C18)" column extraction and radioassay.
Franck
P F
PF
Dept. of Clin. Chem., University Hosp., Leiden, The Netherlands.
de Maaker
G A
GA
Moolenaar
A J
AJ
D004100:Dihydroxycholecalciferols / Q000097:blood*; D006706:Homeostasis; D006801:Humans; D006887:Hydroxycholecalciferols / Q000097:blood*; D011863:Radioimmunoassay; D011869:Radioligand Assay; D012822:Silicon Dioxide
D004100:Dihydroxycholecalciferols; D006887:Hydroxycholecalciferols; D012822:Silicon Dioxide; C042953:octadecyl silane-bonded silica