International Catalog

CALCIUM METABOLISM - RIA

1,25-Dihydroxyvitamin D

 65100E/100 Tubes

Intended use

 For the quantitative determination of 1,25-Dihydroxyvitamin D.

Label

 125 I

Method

 RIA Double Antibody

Controls included

 Two Levels

No. standard

 6; 0-200 pg/mL

Detection limit

 <2.0 pg/mL

Incubations

 2 h/RT

Feature & benefits

 Specific rapid extraction technique. Same day reporting of results. Proprietary sample preparation. Room temperature assay. Accurately measures both 1,25 Vitamin D2 and 1,25 Vitamin D3

Sample type

 Serum/EDTA-Plasma

Sample size

 500 µL (extraction), 75 µL (assay)

Comments

 Does not require HPLC. Cartrige Pack (#65101E) must be purchased separately.

Radioactivity

 204 kBq - 5.5 µCi/100 tests

25-Hydroxyvitamin D

 68100E/100 Tubes

Intended use

 For the quantitative determination of 25-Hydroxyvitamin D and other hydroxylated metabolites.

Label

 125 I

Method

 RIA Double Antibody

Controls included

 Two Levels

No. standard

 6; 0-100 ng/mL

Detection limit

 1.5 ng/mL

Incubations

 1.5 h/RT

Feature & benefits

 Specific 25-OH-D3 tracer. Excellent specificity. Excellent agreement with HPLC. Standardized against HPLC purified 25-OH-D. Accurately measures both D2 & D3.

Sample type

 Serum/Plasma

Sample size

 50 µL (extraction), 25 µL (assay)

Radioactivity

 148 kBq - 4 µCi/100 tests