When anion standards are analyzed using an anion analysis column for non-suppressor method, IC I-524A, the eluent of octanesulfonic acid / boric acid is suitable for high sensitive analysis. The background of the eluent is low and baseline drift is small even when a large sample volume, up to 200 μL, is injected. The table below shows the detection limit of each anion.
Please refer to 'Anion Standards (8) (Eluent : Octanesulfonic Acid and Boric Acid)'.
(Preparation of eluent)
1) Put 0.195 g of reagent grade sodium 1-octanesulfonate and 1.22 g of reagent grade boric acid into a volumetric flask.
2) Dilute with purified water to make up a 1 liter solution.
3) Dissolve using an ultrasonic vibrator.
4) Pass through a 0.2 μm membrane filter before use.
Detection limit | ||
---|---|---|
F- |
3 ng
|
(15 μg/L)
|
Cl- |
2 ng
|
(10 μg/L)
|
NO2- |
8 ng
|
(40 μg/L)
|
Br- |
13 ng
|
(65 μg/L)
|
NO3- |
7 ng
|
(35 μg/L)
|
SO42- |
14 ng
|
(70 μg/L)
|
( ) : Concentration of detection limit at 200 μL injection
|
Column : Shodex IC I-524A (4.6 mm I.D. x 100 mm) Eluent : 0.9 mM Sodium 1-octanesulfonate + 20 mM Boric acid aq. Flow rate : 1.2 mL/min Detector : Non-suppressed conductivity Column temp. : 40 ℃
Sample Name Index
Operation Manual / Certificate of Analysis
Operation Manuals and Certificate of Analysis / Inspection Certificate for the following products can be downloaded here.
Product Name Index
Applications
- Anion Standards (1) (I-524A)
- Anion Standards (2) (I-524A)
- Anion Standards (3) (I-524A)
- Anion Standards (6) (I-524A)
- Anion Standards (7) (Anions and Organic Acids) (I-524A)
- Anion Standards (8) (Eluent : Octanesulfonic Acid and Boric Acid) (I-524A)
- Anion Standards (15) (Comparison of NI-424 and I-524A)
- Polyphosphoric Acids (I-524A)
- Effects of pH on Retention Time (1) (I-524A)
- Dynamic Range of Column (I-524A)
- Effects of Sample Load on Column Efficiency (1) (I-524A)
- Tap Water (3) (I-524A)
- Tap Water (4) (I-524A)
- River Water (1) (I-524A)
- Carbonate and Other Anions (1) (I-524A)
- Anions in Beer (I-524A)
- Chinese Cabbage (I-524A)
- Iodic Ion in Urine (I-524A)
- Milk (I-524A)
- Sea Water (1) (I-524A)
- Sodium Azide (1) (I-524A)
- Lithium Tetrafluoroborate (I-524A)
- Analysis of Hydrophobic Anions (I-524A)