1.19533

Cyanide standard solution

traceable to SRM from NIST K₂[Zn(CN)₄] in H₂O 1000 mg/l CN Certipur^®

• UNSPSC Code: 41116107

Propiedades

• Quality Level: 100
• technique(s): ion chromatography: suitable
• pH: 9-10 (20 °C in H₂O)
• density: 1.00 g/cm³ at 20 °C
• application(s): environmental; food and beverages
• format: single component solution
• storage temp.: 2-8°C

Descripción

Application

• Development of Cyanide Detection Methods: Utilizing high-performance liquid chromatography-tandem mass spectrometry, researchers have developed concurrent determination methods for cyanide and thiocyanate in human and swine blood. This technique ensures high accuracy and sensitivity, crucial for toxicological analysis and forensic investigations (Alluhayb et al., 2023).
• Fluorometric Cyanide Sensing: A novel fluorometric probe offers high selectivity for sensing cyanide in aqueous solutions, which can be applied to quantitative determinations and living cell imaging. This advancement supports biochemical assays requiring precise cyanide measurements, enhancing safety and detection capabilities in both environmental and clinical settings (Satheeshkumar et al., 2023).

Analysis Note

Concentration     β (CN⁻): 990 - 1010 mg/l
Determination method: Argentometric titration.
The content of this solution was determined with silver nitrate standard solution (article number 1.09081) standardized against volumetric standard sodium chloride (article number 1.02406). The expanded measurement uncertainty is ± 0.7 % (k=2 coverage factor for 95% coverage probability). The certified value is traceable to primary standard NIST SRM 999b (NIST: National Institute of Standards and Technology, USA) by means of volumetric standard sodium chloride, measured in the accredited calibration laboratory of Merck KGaA, Darmstadt, Germany in accordance to DIN EN ISO/IEC 17025.

Legal Information

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

Información de seguridad

• hcodes: H412
• pcodes: P273 - P501
• Hazard Classifications: Aquatic Chronic 3
• supp_hazards: EUH032
• Storage Class: 12 - Non Combustible Liquids
• wgk_germany: WGK 2