3.6 Before Analysis
Table 3-1 Reagents Restricted in Use as Mobile Phase
Usable
Usable below 50%
Usable below 10%
Undesirable for SUS 316
Phosphoric acid
Sodium phosphate
Acetic acid
Ammonium citrate
Ammonium nitrate
Citric acid
Butyric acid
Sodium nitrate
Disodium phosphate
Ammonium formate
Ammonium perchlorate
Ammonium phosphate
monobasic
Boric acid
Formic acid (up to pH3)
Hydrochloric acid (up to
pH3)
Potassium nitrate
Sodium hydrogen
carbonate
Sodium carbonate
Ammonium chloride
Potassium chloride
Sodium chloride
Trifluoroacetic acid
(
Note 1
)
Maximum concentration
of the above reagents
should be limited to 5 -
6%.
(
Note 2
)
If the above reagents
were used unavoidably,
be sure to wash the
entire flow path
adequately with distilled
water.
Other reagents which can corrode SUS 316 must not be used.
Also attention should be paid to solvent viscosity, because liquid
delivery is disabled by use of a highly viscous solvent.
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Summary of Contents for CHROMASTER 5160
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