In Japan, monitoring of perchloric acid is required for drinking water quality control. The advisory level is assigned at 0.025 mg/L (April 2011 in Japan). In this application, RSpak JJ-50 2D was used for an LC/MS analysis of perchloric acid and oxyhalides. JJ-50 is modified with quaternary ammonium functional group and it works as a multimode column (reversed phase + anion exchange). By optimizing mobile phase composition and flow rate for LC/MS, 0.1 ug/L perchloric acid can be detected under SIM mode.
Sample : 5 μL
Standards
Tap water
ClO4-, Perchlorate
ClO3-, Chlorate
BrO3-, Bromate
ClO2-, Chlorite
Cl-, Chloride
Column : Shodex RSpak JJ-50 2D (2.0 mm I.D. x 150 mm) Eluent : 50 mM Ammonium formate aq./CH3CN=25/75 Flow rate : 0.2 mL/min Detector : ESI-MS (SIM) Column temp. : 30 °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
- LC/MS/MS Analysis of Sulfamic Acid According to Japanese Testing Methods for Fertilizers (ODP2 HP-2D)
- High Sensitive Analysis of Bromate by LC/MS/MS (JJ-50 2D)
- LC/MS Analysis of Iodide (VT-50 2D)
- Simultaneous LC/MS Analysis of Haloacetic Acids and Anions Including Chlorate and Bromate (JJ-50 2D)
- Analysis of Chlorate and Bromate in Tap Water by LC/MS/MS, According to Japanese Water Supply Act (JJ-50 2D)
- Analysis of Perchloric Acid by LC/MS (SI-35 2B)