How to make sodium formate from the sodium hydroxide solution provided in Tof G2-S Sample Kit-2 - WKB10562

OBJECTIVE or GOAL

Make sodium formate from the 0.5 mM sodium hydroxide provided in Tof G2-S Sample Kit -2.

ENVIRONMENT

• Tof G2-S calibration solution
• Sodium formate calibration solution

PROCEDURE

1. Using a 1000-μL pipette, transfer 900 μL of deionized or LCMS-grade water to the 5-mL vial.
2. Using a 200-μL pipette, add 100 μL formic acid to the 5-mL vial and shake well.
3. Using a 200-μL pipette, transfer 100 μL of the 10% formic/aqueous solution to the 30-mL nalgene bottle containing the 0.5 mM sodium hydroxide; sonicate for 5 minutes.
4. Label the bottle “0.5 mM sodium formate”; store in a refrigerator for up to 3 months.

ADDITIONAL INFORMATION