1.70320

Germanium ICP standard

traceable to SRM from NIST (NH₄)₂GeF₆ in H₂O 1000 mg/l Ge Certipur^®

• UNSPSC Code: 41116107
• NACRES: NA.24

Properties

• grade: certified reference material
• Quality Level: 300
• product line: Certipur^®
• concentration: 1000 mg/L Ge in H₂O
• technique(s): ICP: suitable
• pH: 0.5 (20 °C in H₂O)
• density: 1.000 g/cm³ at 20 °C
• application(s): industrial qc; pharmaceutical
• format: single component solution
• storage temp.: 15-25°C

Description

General description

This certified reference material (CRM) is produced in accordance with ISO 17034 and characterized in accordance with ISO/IEC 17025. This CRM is traceable to SI unit kg and measured against primary material from a National Metrology Institute (NMI), e.g. NIST.
Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.
Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty, date of expiry, and detailed information about trace impurities.

Application

• Environmental Monitoring of Heavy Metals: Germanium ICP standards play a crucial role in the preliminary screening of soils for natural radioactivity and metal(loid) content, particularly around decommissioned industrial sites. This application highlights the importance of high-purity germanium standards in environmental health research to ensure community safety and regulatory compliance (Huang et al., 2022).


• Improvement of Iodine Analysis Methods: The reliability of AOAC Official Method 2012.15 for iodine, which often employs germanium as an internal standard in ICP-MS analyses, underscores the standard′s role in enhancing methodological accuracy in biopharmaceutical applications. This improvement is crucial for ensuring the quality and safety of pharmaceutical products (Hieda et al., 2022).


• Advancements in Photochemical Vapor Generation: Research on the synergistic effects from cobalt/chloride ions and air-liquid interfaces in the generation of germanium hydrides showcases the germanium ICP standard′s application in developing novel analytical techniques. This method provides a more efficient and sensitive approach to trace metal analysis in complex matrices (Yu et al., 2022).


• Serum Lithium Quantification: Germanium ICP standards are pivotal in the standard addition method for quantifying serum lithium via inductively coupled plasma mass spectrometry. This technique is essential in clinical biochemistry for monitoring therapeutic levels of lithium, demonstrating the standard′s role in clinical diagnostics (Fan et al., 2022).


• Environmental Water Analysis: The speciation of germanium in environmental water using hydride generation and ICP-MS/MS indicates the utility of germanium ICP standards in environmental science. This method helps in the accurate and sensitive determination of germanium levels, vital for assessing pollution and its ecological impacts (Garcia-Figueroa et al., 2021).

Analysis Note

1000 mg/l Ge in water, prepared with high-purity (NH₄)₂GeF₆ and water

Other Notes

For a complete product listing of our Certipur^® range of CRMs for ICP and AAS, technical information, and example certificates please visit our ICP & AAS standards website

Legal Information

CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class: 12 - Non Combustible Liquids
• wgk_germany: WGK 2