1-Hydroxyethylidene-1,1-diphosphonate (HEDP), Nitrilotris(methylene phosphonate) (NTMP), N,N,N',N'-Ethylenediaminetetrakis(methylene phosphonate) (EDTMP) and Diethylenetriaminepenta(methylene phosphonate) (DTPMP) were analyzed using IC NI-424 (an anion analysis column for non-suppressor method).
Sample : 100 mg/L each, 100 μL
1. 1-Hydroxyethylidene-1,1-diphosphonate, HEDP
2. Nitrilotris(methylene phosphonate), NTMP
3. N,N,N',N'-Ethylenediaminetetrakis(methylene phosphonate), EDTMP
4. Diethylenetriaminepenta(methylene phosphonate), DTPMP
Column : Shodex IC NI-424 (4.6 mm I.D. x 100 mm) Eluent : 3 mM H2SO4 aq. Flow rate : 1.0 mL/min Detector : RI Column temp. : 40 °C
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
- Effects of Sample Load on Column Efficiency (4) (NI-424)
- Linearity of Calibration Curves (NI-424)
- Calibration Curves for Low Concentration F- (NI-424)
- Anion Standards (15) (Comparison of NI-424 and I-524A)
- Anion Standards (16) (NI-424: Phthalic Acid aq. Eluent)
- Anion Standards (17) (Hydrophobic Inorganic Ions) (NI-424)
- Anion Standards (18) (NI-424)
- Tap Water (7) (NI-424)
- River Water (3) (NI-424)
- Rain Water (NI-424)
- Effects of pH on Retention Time (NI-424)
- Analysis of Pyrophosphate and Tripolyphosphate (NI-424)
- Carbonate and Other Anions (2) (NI-424)
- Anions and Organic Acids (NI-424)
- Methanesulfonic Acid and Methanedisulfonic Acid (NI-424)
- Elution Volume of Organic Acids (NI-424)
- Analysis of Alkyl Sulfonic Acids (1) (NI-424)
- Anion Analysis in Lithium Salts (1) (NI-424)
- Analysis of Sulfamic Acid and Ammonium Thiocyanate According to Japanese Testing Methods for Fertilizers (NI-424)
- Analysis of Chloride According to Japanese Testing Methods for Fertilizers (NI-424)
- Sulfate Ion in Enoxaparin Sodium (NI-424)