Preparing The Cleaning Solution - Thermo Scientific Orion 2230XP User Manual


Section 9 Maintenance Schedule
70  Thermo Scientific Orion

Preparing the Cleaning solution

Recipe A1 Cleaning Solution (for normal Cleaning Operation)
To prepare 1 liter of cleaning solution:
1. Dissolve 5 g of analytical grade sodium hydroxide pellets, NaOH, in approximately 600 ml of
high purity water in a plastic container. Allow the solution to cool to ambient temperature.
2. Add to the solution 1 g analytical grade di-sodium EDTA and stir to dissolve.
3. Transfer the solution to a 1 liter measuring cylinder and make to the mark with more high
purity water.
Mix well and store in a tightly sealed plastic bottle.
Recipe A2 Extra Strength Cleaning Solution (for troubleshooting and more
intense Cleaning)
To prepare 1 liter of extra strength cleaning solution:
1. Dissolve 50 g of analytical grade sodium hydroxide pellets, NaOH, in approximately 600 ml of
high purity water in a plastic container. Allow the solution to cool to ambient temperature.
2. Add to the solution 5 g analytical grade di-sodium EDTA and stir to dissolve.
3. Transfer the solution to a 1 liter measuring cylinder and make to the mark with more high
purity water.
Mix well and store in a tightly sealed plastic bottle.
2230XP Silica Analyzer