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

This application note describes a simple supported liquid extraction method for extraction of estrone and estradiol from human serum. An analytical HPLC-MS/MS method that avoids the use of derivatization or fluoride adduct stabilization (two approaches often used to enhance method sensitivity) is used. High, reproducible analyte recovery and low detection limits (0.001 ng/mL) are achieved.

96-well plate Application Notes Clinical English Estradiol Estrogens Estrone LC-MS/MS Serum Steroid Hormones

This poster presents a high sensitivity method for extraction and analysis of estrogens in human plasma. Sample preparation utilizes Biotage ISOLUTE SLE+ plates, providing high analyte recovery and low matrix effects. MSACL 2018, Palm Spings, CA

96-well plate Clinical English Estradiol Estriol Estrogens Estrone LC-MS/MS Plasma Posters