What Milli-Q or water purification systems are used in Waters labs? - WKB191699
Article number: 191699
ENVIRONMENT
- Milli-Q
- Water purification
- LC-MS solvents
ANSWER
- Milli-Q Advantage A10
- Elga PureLab Flex (https://www.elgalabwater.com/)
ADDITIONAL INFORMATION
- Ultra‐pure water is sterile and contains no particles greater than 0.2 microns, no detectable ionizable compounds (>18 MegaOhm (MΩ).cm resistivity), and low UV absorbance at the monitoring wavelengths.
- Use of ultra‐pure water reduces the number of impurities in the water that can collect on the column during equilibration with the weak solvent.
- Ultra‐pure water is sterile and contains no particulates, no detectable ionizable compounds, and no UV‐absorbing compounds. The purification process must include all of the following steps:
- a. Reverse osmosis (to remove most contaminants)
b. UV sterilization (to kill bacteria)
c. Ion exchange (to remove any remaining ions)
d. Carbon filtration (to remove any remaining ionizable compounds)
e. A pharmaceutical‐grade 0.2‐micron membrane filter (to remove any remaining particulates)
- a. Reverse osmosis (to remove most contaminants)
id191699,