Thermo Scientific iCAP 7000 Series, Руководство пользователя

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iCAP Customer Familiarisation Manual
Page 65 of 72
This document is part numbered 849940090071 Version 1.02
10 Suggested maintenance in the case of poor precision
and detection limits
10.1 Introduction
Maintenance refers to a series of periodic activities that should be performed on a
periodic basis to optimise the short term and long term performance of the system. In
this chapter we describe activities that should be performed by the typical user of the
instrument.
10.2 Typical Maintenance Schedule
Replace Pump Tubing Weekly
Clean the Nebuliser Weekly
Clean the Plasma Torch Weekly
Switching valve weekly
10.3 Replacing pump windings
Type Solvent Types
Tygon Aqueous solutions, strong acids and highly
polar organic solvents (e.g. methanol and
ethanol
)
Viton Solvents of low polarity (e.g. alkanes,
aromatics and halogenated hydrocarbons
such as gasoline, kerosene, Toluene,
xylene, chloroform and carbon
tetrachloride).
SOLVAFLEX Solvents of low polarity (e.g. alkanes,
aromatics and halogenated hydrocarbons
such as gasoline, kerosene, Toluene,
xylene, chloroform and carbon
tetrachloride).
A pump tubing in poor condition is characterised by either being flattened hard or
discoloured. Squashed tubing is usually caused by leaving the platen pressure on
the tubing when it is not being used
To minimise squashing of the tubing, release platen pressure when the pump is not
being used, even for short periods. Hardened and discoloured tubing is caused by
chemical reactions with the sample. While these phenomena cannot be avoided,
they can be minimised by frequently flushing it with deionised water.