Hitachi CHROMASTER 5160 Instruction Manual page 105

Table 3-9 Reagents for Mobile Phase that may be Restricted
Usable reagents
Phosphoric acid
Sodium phosphate
Usable, if it is 50%
or lower
Acetic acid
Ammonium citrate
Ammonium nitrate
Citric acid
Butyric acid
Sodium nitrate
Do not use reagents that corrode SUS316 though they are
not shown in the table above. High viscosity solvent won't
be delivered, so please be careful.
(5) Chemical resistance of the auto purge valve
Ⓡ
Vespel
purge valve for the Chromaster 5160 pump. Vespel
resin is weak against over pH10 over or more, so avoid
using those.
Usable, if it is 10% or
lower
Disodium phosphate
Ammonium formate
Ammonium perchlorate
Ammonium phosphate
Boric acid
Formic acid (up to pH3)
Hydrochloric acid (up to
pH3)
Potassium nitrate
Sodium
hydrogencarbonate
Sodium carbonate
is used for the parts in drive system of the auto
3 - 68
Unusable reagents for
SUS316
Ammonium chloride
Potassium chloride
Sodium chloride
Tolufluoroacetic acid
Note 1:
Max. concentration of
above reagents
should be 5 to 6%.
Note 2:
When the above
reagents have been
used necessarily,
wash all the flow
paths with distilled
water completely
without fail.
Ⓡ