This application note describes the extraction of a panel of 19 steroid hormones from human serum using EVOLUTE® EXPRESS ABN solid phase extraction plates prior to LC/MS analysis. The simple sample preparation procedure delivers clean extracts and analyte recoveries greater than 80% with RSDs lower than 10% for the majority of analytes. Linearity of >0.99 is achieved for all analytes in the range 5–5000 pg/mL.

11-deoxycorticosterone 11-deoxycortisol 17-OH-Pregnenolone 17-alpha-hydroxyprogesterone 18-OH-Corticosterone 21-deoxycortisol 96-well plate Aldosterone Androstenedione Application Notes Clinical Corticosterone Cortisol Cortisone DHEA (dehydroepiandrosterone DHEAS Dehydroepiandrosterone (DHEA) Dihydrotestosterone (DHT) English Estradiol Estrogens Estrone LC-MS/MS Pregnenolone Progesterone Serum Steroid Hormones Steroid metabolite

This application note describes the extraction of a panel of steroid hormones from human serum using ISOLUTE® SLE+ Supported Liquid Extraction plates prior to LC/MS-MS analysis. The simple sample preparation procedure delivers clean extracts and high, reproducible recoveries (>75%, RSD <10% ) for all analytes in human serum, with linearity >0.99 in the range 5–5000 pg/mL.

11-deoxycorticosterone 11-deoxycortisol 17-OH-Pregnenolone 17-alpha-hydroxyprogesterone 18-OH-Corticosterone 21-deoxycortisol 96-well plate Aldosterone Androstenedione Application Notes Clinical Corticosterone Cortisol Cortisone DHEA (dehydroepiandrosterone DHEAS Dehydroepiandrosterone (DHEA) Dihydrotestosterone (DHT) English Estradiol Estrogens Estrone LC-MS/MS Pregnenolone Progesterone Serum Steroid Hormones Steroid metabolite Testosterone