How is mobile phase B prepared in the Waters PFAS method of application note 720006471EN? - WKB92552
Article number: 92552
ENVIRONMENT
- Perfluorinated alkyl substance (PFAS)
- Mobile phase
- Application note 720006471EN
ANSWER
- Ammonium acetate is weighed from powder form and dissolved in 100% water to a stock solution of 10 Molar.
- The stock is diluted to 1 Molar using 100% water.
- 2 mL of the 1 Molar ammonium acetate buffer is added to 1000 mL of methanol.
ADDITIONAL INFORMATION
For additional information, see Analysis of Legacy and Emerging Perfluorinated Alkyl Substances (PFAS) in Environmental Water Samples Using Solid Phase Extraction (SPE) and LC-MS/MS and What is the suggested storage for the mobile phase stock buffer solutions for the Waters PFAS method?