1.19812

铵(NH4)离子标准液

traceable to SRM from NIST NH₄Cl in H₂O 1000 mg/l NH₄ Certipur^®

• 别名: NH₄ Standard Solution
• 分類程式碼代碼: 41116107
• NACRES: NA.24

属性

• 品質等級: 100
• 技術: ion chromatography: suitable
• pH值: 5.4 (20 °C in H₂O)
• 密度: 0.99 g/cm³ at 20 °C
• 應用: environmental; food and beverages
• 格式: single component solution
• 儲存溫度: 15-25°C

说明

應用

• Development and validation of UPLC-MS/MS method for 5-Fluorouracil quantification in dried blood spot: The use of ammonium standards is crucial in the development and validation of methods for quantifying pharmaceutical compounds, such as 5-Fluorouracil, enhancing both accuracy and precision in bioanalysis (Harahap et al., 2024).


• Portable IC system enabled with dual LED-based absorbance detectors and 3D-printed post-column heated micro-reactor for the simultaneous determination of ammonium, nitrite and nitrate: Utilizing ammonium calibration standards, this innovative approach significantly improves the detection capabilities for environmental monitoring and analysis (Debruille et al., 2024).

分析報告

浓度     β (NH₄⁺)：990 - 1010 mg/l
测定方法：银量滴定法。
该溶液的含量是用硝酸银标准溶液（货号1.09081）测定的，该标准溶液是用容量标准氯化钠（货号1.02406）标定的。扩展测量不确定度为± 0.4 %（k=2，覆盖因子为95%覆盖率）。认证值可通过体积标准氯化钠追溯至一级标准品NIST SRM 999b（NIST：美国国家标准技术研究院）。该过程由德国Darmstadt Merck KGaA公司认可的校准实验室根据DINDIN EN/ISO 17025进行测定。

法律資訊

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

安全信息

• 儲存類別代碼: 12 - Non Combustible Liquids
• 水污染物質分類（WGK）: nwg