The Endocrine Society recommends using the aldosterone to renin ratio (ARR) for primary aldosteronism (PA) screening of patients at a high risk for hypertension1. Ensuring accurate, consistent, and reproducible ARR test results is critical not only for proper diagnosis and treatment of PA but also for ongoing management of the condition. Test results are only as accurate as the reference, therefore any significant difference in purity of the aldosterone reference material from lot to lot could increase variability and impact the potential for a false-positive or false-negative diagnosis.
It is important to use Certified Reference Materials (CRM’s) for clinical applications, rather than research chemicals. Because research grade chemicals are not produced to the same standards and specifications as Certified Reference Materials (CRMs), use in clinical testing applications can lead to errors in quantitation, with potentially serious therapeutic implications. According Uma Sreenivasan, PhD and Chief Science Advisor at Cerilliant, “the specifications and design for research chemicals are very different from that of CRMs which are synthesized to the highest quality, thoroughly characterized and fully certified to ensure suitability for use and lot-to-lot consistency. Commercial sources of aldosterone also vary in purity. In the development of this standard, we paid great attention to the purification process and characterization of the product to design a high purity material for clinical applications.”
Starting with Cerilliant Certified Spiking Solutions® eliminates variability that may arise from differences in weighing of compounds or their purity from lot to lot. Cerilliant solutions begin with extensive characterization of the neat materials to determine an accurate weighing adjustment followed by gravimetric preparation using validated processes and flame sealing under argon into ampoules for long-term shelf-life. Cerilliant Snap-N-Spike®
Cerilliant’s aldosterone reference standard is the latest addition to its Certified Spiking Solution® offering of hormones monitored by LC-MS/MS and HPLC. Recent additions for newborn screening include 17α-Hydroxyprogesterone, Cortisol, 11-Deoxycortisol, 21-Deoxycortisol, Corticosterone, Dehydroepiandrosterone (DHEA), DHEA 3-sulfate sodium salt, Androstenedione, Testosterone, and their deuterium-labeled internal standards. Cerilliant also has introduced Androstene-
Cerilliant Corporation, located in Round Rock, Texas, is a global leader in providing certified reference standards for critical applications. The company has been providing certified reference materials for over 30 years. Cerilliant offers more than 3,000 catalog products and a full range of custom products and services that address the stringent and complex requirements of the pharmaceutical, clinical diagnostic, clinical/forensic toxicology, natural products, and environmental industries. Cerilliant sustains a modern, robust quality system which incorporates cGMP, GLP, and ISO requirements. We are accredited to ISO Guide 34 and ISO/IEC 17025 and certified to ISO 13485 and ISO 9001.
Cerilliant Corporation is a subsidiary of Sigma-Aldrich®
1. Funder JW, Carey RM, Fardella C, et al. Case detection, diagnosis, and treatment of patients with primary aldosteronism: