Description

Selenium78 CAS NO 14833-16-0 is a stable, non-radioactive isotope of selenium, specifically the isotope with 78 neutrons. This high-purity material is essential for research and industrial applications requiring isotopically enriched selenium, offering a consistent and well-defined atomic composition. It is particularly valuable for scientists and manufacturers in the fields of nuclear medicine, tracer studies, and advanced materials science where precise isotopic control is critical.

Application

• Nuclear Medicine & Radiopharmaceuticals: Used as a target material for the production of radioisotopes like Selenium-73 or as a stable tracer in metabolic studies.
• Geochemical & Environmental Tracer Studies: Employed as a spike in isotope dilution mass spectrometry (ID-MS) to accurately measure selenium concentrations and study biogeochemical cycles.
• Advanced Materials Research: Serves as a precursor for synthesizing semiconductors, nanomaterials, and photovoltaic compounds with specific isotopic signatures to study phonon scattering and thermal properties.
• Nutritional & Metabolic Research: Utilized in stable isotope labeling experiments to track selenium absorption, distribution, metabolism, and excretion (Se-ADME studies) in biological systems.
• Reference Standards & Calibration: Acts as a primary standard for calibrating analytical instruments, ensuring accuracy in environmental monitoring and food safety testing.
• Industrial Process Tracing: Applied as a benign tracer in chemical engineering and hydrology to monitor flow patterns, mixing efficiency, and material pathways.

Basic Information

Product Name	Selenium-78
CAS No.	14833-16-0
Molecular Formula	Se
Molecular Weight	77.917
Synonyms	Selenium-78 isotope; 78Se; Selenium, isotope of mass 78; Stable Selenium-78; Selenium 78; Enriched Selenium-78; Selenium (78Se); CAS 14833-16-0
EINECS	Contact for details

Quality Control

Our Selenium-78 is produced and handled under stringent quality management protocols. Each batch is characterized for isotopic enrichment and chemical purity using advanced techniques like Inductively Coupled Plasma Mass Spectrometry (ICP-MS). A comprehensive Certificate of Analysis (COA) is provided, detailing isotopic abundance, elemental impurities, and trace metal content to meet the exacting requirements of research and industrial applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep the container sealed to prevent contamination and minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Gray to black solid
Isotopic Enrichment (78Se)	> 99.0% (atom%)
Chemical Purity (Se basis)	> 99.9%
Identification (Isotopic Pattern)	Conforms by ICP-MS
Trace Metals (ICP-MS)	< 100 ppm total
Form	Powder, foil, or custom

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.