There are three types of sex hormones agonists: the Androgens or AAS like testosterone , the estrogens like estradiol and progestogens like progesterone.
Estrogens (or oestrogens) are primary female sex hormones and play an important role in the regulation of many physiological processes of the reproductive system, such as ovulation, fertilization, implantation of the embryo and lactation. They can be produced synthetically and are used as a medication. Some estrogens are used as steroids. If animals are treated with estrogens, drug residues may remain in the animal’s meat and milk. Our reliable test systems can detect estrogen residues.
Androgens ( or androgenic steroids –AAS) are natural or synthetic steroid hormones that stimulate or control the development and maintenance of male characteristics by binding to androgen receptors. The group of androgens includes many synthetic molecules in addition to natural testosterone. If animals are treated with androgens, drug residues may remain in the animal’s meat and milk. Our test systems can reliably detect androgen residues.
RIDASCREEN® 17ß-Östradiol is a competitive enzyme immunoassay for the quantitative analysis of 17ß-estradiol in bovine plasma.
- RIDA® 17 ß-Östradiol Spiking Solution
|Test format||Microtiter plate with 96 wells (12 strips with 8 removable wells each)|
RIDA® 17ß-Östradiol Spiking Solution
RIDA® 17ß-Östradiol Spiking Solution can be used for the production of positive control samples suitable for the validation (e.g. determination of the recovery rate) of the RIDASCREEN® 17 ß-Östradiol test (R2301).
|Test format||17ß-estradiol in methanol
concentration: 200 ng/ml
volume: 1 ml
RIDASCREEN® Testosteron is a competitive enzyme immunoassay for the quantitative analysis of testosterone in bovine plasma.
Testosteron is a natural male sexual hormone. Because of the illegal use as resource in cattle fattening, on EU level Maximum Residue Performance Limits (MRPLs) are legally demanded for bovine plasma.
- RIDA® Testosteron Spiking Solution
|Test Format||Microtiter plate with 96 wells (12 strips with 8 removable wells each)|
|Standard Range||0 ppt (zero standard), 50 ppt, 200 ppt, 800 ppt, 3200 ppt, 12800 ppt|
|Sample Preparation||extraction, freezing, evaporation|
|Incubation Time||2 h 30 min|
|Detection Limit||20 ppt (corresponding to the standard substance)|
|Cross Reactivity||Testosteron: 100 %
17-β-Nortestosterone: 10 %
17-β-Trenbolone: 1 %
17-β-Estradiol: < 0.1 %
Cortisol: < 0.1 %
Corticosterone: < 0.1 %
Progesterone: < 0.1 %
RIDA® Testosteron Spiking Solution
RIDA® Testosteron Spiking Solution can be used for the production of positive control samples suitable for the validation (e.g. determination of the recovery rate) of the RIDASCREEN® Testosteron test (R2401).
A spiking procedure for different matrices, which are listed in the product leaflet of the RIDASCREEN® Testosteron test is available on request.
|Test format||testosteron in methanol
concentration: 500 ng/ml
volume: 1 ml