Hardware manual

Maintenance 4
Agilent 7500 Series ICP-MS Hardware Manual 4-29
Cleaning the Babington Nebulizer and the End Cap
The carrier gas pressure is generally 500 to 600 kPa at a 1.2 L/min carrier gas
flow rate.The argon gas supply pressure has to be set to 700 kPa. If carrier gas
pressure rises to more than 600 kPa, the nebulizer may become clogged.
Figure 45 Babington Nebulizer and End Cap
Tubing for Make-up Gas
End Cap
Nebulizer
Tubing for
Carrier Gas
Inner Sleeve
Back Ferrule
Front Ferrule
O-ring
O-ring
CAUTION
Wear gloves when handling the Babington nebulizer to avoid getting the oils from your
hands on the surface of nebulizer. If contaminated with oil, the wetability of the surface
of the nebulizer is compromised and the signal becomes unstable.
The wetability of the Babington nebulizer spray part has a significant effect on signal
stability. If the signal is unstable, check the wetability of the surface of the nebulizer
visually after removing the end cap from the spray chamber.
Never spray toward the face.