Agilent Technologies 6475 User Manual page 81

5 Maintenance
Ion Injector
Cleaning the ion injector
Perform this procedure when you observe decreased sensitivity and decreased
signal stability.
Tools needed:
• Clean powder-free nitrile gloves
• LC/MS-grade isopropanol
• Alconox powdered precision cleaner
• Deionized (18 MΩ/cm) water
• 100-mL polypropylene graduated cylinder
• 10-mL polypropylene graduated cylinder
• Two 1-mL pipette tip
To clean the ion injector,
1 Put on clean powder-free nitrile gloves.
2 Dissolve 1 gram of Alconox Powdered Precision Cleaner in 100 mL of
3 If you use a glass graduated cylinder, cover the end of the ion injector with a
4 Trim the pipette tip to approximately 4 cm so that the ion injector can be
5 Place the ion injector upright in a graduated cylinder and fill with Alconox
6 Put the Ultrasonic cleaner under a fume hood. Sonication should be done
7 Sonicate the graduated cylinder that contains the ion injector in an ultrasonic
Rinse the ion injector and graduated cylinder several times with deionized water.
NOTE
8 Fill the graduated cylinder with deionized water and sonicate for 10 to 15
9 Remove the ion injector from the graduated cylinder and remove the pipette
10 Blow out excess water from the ion injector bore with nitrogen.
Agilent 6475 Triple Quad LC/MS System User Guide
deionized (18 MΩ/cm) water. This concentration is the recommended
concentration for both manual or ultrasonic cleaning.
1-mL pipette tip to protect the metalized plating.
immersed in the cleaning solution.
Powdered Precision Cleaner solution.
under a fume hood.
cleaner for 10 to 15 minutes. Do not clean longer than 15 minutes.
minutes.
tips (if any were used).
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