Hitachi CHROMASTER 5160, Instruction Manual

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4 - 17
4.4.3 Poor Sensitivity, Poor Separation, Poor Reproducibility
OK
Connection piping
Yes
Check leak visually. Any Leakage?
Leak from
Injection port
Check leak visually.
Leak from
Syringe valve
Check leak visually.
Check leak visually.
Check leak visually.
Leak from
Injection valve
Leak from Syringe
Dirty cleaning vessel,
sample container
Clogging of Needle Clean the Needle.
Clean or replace.
No
Yes
No
Yes
No
Yes
No
Yes
No
Tighten.
OK
Tighten. Replace Injection port seal.
(See the instruction manual for Autosampelr.)
OK
Replace the Valve seal.
(See the instruction manual for Autosampler.)
Tighten.
OK
Replace the Syringe.
OK
Dirty inside of Cell, Bubbles
in Cell, Leakage from Cell
Detector
Autosampler
See 4.4.1 "Cell".
Flow path
system
Leakage from
piping connection
Check leak visually.
Column
Flow path
system
Deterioration of
Column
Leakage from
piping connection
Check leak visually.
Check Cell visually.
Tighten.
OK
See 4.4.1 "Cell".
Tighten.
OK
Large variation of pressure
See 4.4.2 "Abnormal pressure".
Environment
Influence to Column
If Column oven is not used, large variation of
room temperature changes Peak.
Column oven
Autosampler
Unstable
temperature
Leakage from
Autosampler
Flow path
system
Leakage from the
Flow path system
Check leak visually.
Tighten.
OK
Wait until the temperature becomes stable.
See "Autosampler" above.
Poor sensitivity
Poor separation
Poor reproducibility of position
Poor reproducibility of area
Symptom Check position Possible cause Check Result Remedy
Yes
No
Yes
No
Yes
No