IonPac NS1 Manual
Document No. 034024-06
Page 15 of 35
4.1.1 Production Test Chromatogram
Isocratic elution of anions on the IonPac NS1 analytical column has been optimized utilizing tetrabutylammonium ion as the ion-
pairing agent and acetonitrile as the organic modifier. Using these eluent conditions, highly retained anions can be eluted from the
hydrophobic packing of the IonPac NS1. To guarantee that all IonPac NS1 analytical columns meet high quality and reproducible
performance specification standards, all columns undergo the following production control test.
Column:
IonPac NS1 (10 µm)
Eluent:
3 mM Tetrabutylammonium hydroxide / 28% Acetonitrile
Flow Rate:
1.0 mL/min
Inj. Volume:
10 µL
Detection:
Suppressed conductivity, ASRS ULTRA II
AutoSuppression
®
MPIC Mode
Regenerant:
10 mN Sulfuric acid
Peaks
mg/L
1.
Propanesulfonate
15
2.
Iodide
15
3.
Thiocyanate
15
4.
Hexanesulfonate
50
where 1 mg/L= 1 ppm
Figure 1
Production Test Chromatogram
