1 • Introduction
Doc. 065447-02 12/14
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•
For eluent generation, or when manually preparing eluent and regenerant,
use ASTM Type I (18 megohm-cm) filtered and deionized water that
meets the specifications listed in
.
•
(Optional) If eluent reservoirs will be pressurized, provide a clean helium
or nitrogen source regulated to approximately 0.17 to 0.34 MPa (25 to
50 psi).
•
(Optional) For pressurized reagent delivery, provide a clean helium or
nitrogen source regulated to between 0.60 and 0.85 MPa (80 and 120 psi).
Contaminant
Specification
Ions–Resistivity
>18.0 (megohm-cm)
Organics–TOC
<10 ppb
Iron/Transition Metals*
<1 ppb
Pyrogens
<0.03 (Eu/mL)
Particulates >0.2 µm
<1 (units/mL)
Colloids–Silica
<10 ppb
Bacteria
<1 (cfu/mL)
* Iron/transition metal content not specified for ASTM
Type I water
Table 1-1. ASTM Filtered, Type I Deionized Water
Specifications for Ion Chromatography
Never pressurize eluent reservoirs above 0.07 MPa (10 psi).
Pressurizing reservoirs above this limit can cause the reservoir to
explode.
Ne mettez jamais les réservoirs d'éluants sous une pression supérieure
à 0,07 MPa (10 lb/po²).
Setzen Sie den Eluentbehälter auf keinen Fall einem Druck über
0,07 MPa aus.
