Standard solutions

The ion chromatography is a technique that allows simultaneous determination of many kinds of ions at a high sensitivity. It is used for environmental measurement related to wastewater, soil and atmosphere and in various fields, e.g. food quality control.

Products certified by JCSS

We have been accredited as a calibration organization (accredited calibration body) of pH standard solutions, metallic standard solutions and ion standard solutions by the Minister of Economy, Trade and Industry and have commercialized standard solutions conforming to Japan Calibration Service System (JCSS). Each bottle of the products certified by JCSS is provided with a calibration certificate with JCSS logo mark which certifies the traceability to the national measurement standards.

Anion Standard Solutions
Product Name Composition (mg/L) Grade Package Size Wako Cat. No.
Bromate Ion Standard Solution BrO3- :2000 in water for Ion Chromatography 50 mL 028-15091
Bromide Ion Standard Solution Br-:1000 in water JCSS 50 mL 024-15331
Chloride Ion Standard Solution Cl-:1000 in water JCSS 50 mL 032-16151
Chlorate Ion Standard Solution ClO3-:1000 in water for Ion Chromatography 50 mL 037-19401
Chlorite Ion Standard Solution ClO2-:1000 in water for Ion Chromatography 50 mL 034-19411
Fluoride Ion Standard Solution F-:1000 in water JCSS 50 mL 066-03401
Nitrate Ion Standard Solution NO3-:1000 in water JCSS 50 mL 143-06441
Nitrite Ion Standard Solution NO2-:1000 in water JCSS 50 mL 140-06451
Nitrate Nitrogen Standard Solution NO3-(as N):1000 in water for Ion Chromatography 50 mL 144-06351
Nitrite Nitrogen Standard Solution NO2-(as N):1000 in water for Ion Chromatography 50 mL 147-06341
Phosphate Ion Standard Solution PO43-:1000 in water JCSS 50 mL 168-17461
Sulfate Ion Standard Solution SO42-:1000 in water JCSS 50 mL 192-10821
Multianion Standard Solution I Br-:100、Cl-:20、F-:20 NO2-:100、NO3-:100 PO43-:200、SO42-:100 in water for Ion Chromatography 50 mL 133-11891
Multianion Standard Solution 2 Cl-:200、F-:50、NO2--N:10 NO3--N:20 in water for Ion Chromatography 50 mL 136-11881
Multianion Standard Solution 3 Br-:50、Cl-:10、NO2-:50、 NO3-:50、SO42-:100 in water for Ion Chromatography 50 mL 134-14621
Cation standard solutions
Product Name Composition (mg/L) Grade Package Size Wako Cat. No.
Ammonium Ion Standard Solution NH4+:1000 in 0.02mol/L HNO3 JCSS 50 mL 019-15461
Ammonium Nitrogen Standard Solution NH4+(as N)1000 in water for Water Analysis 50 mL 011-17241
Calcium Ion Standard Solution Ca2+:1000 in 0.02mol/L HNO3   50 mL 031-13321
Lithium Ion Standard Solution Li+:1000 in 0.02mol/L HNO3   50 mL 126-03391
Magnesium Ion Standard Solution Mg2+:1000 in 0.02mol/L HNO3   50 mL 135-09761
Potassium Ion Standard Solution  K+:1000 in 0.02mol/L HNO3 for Ion Chromatography 50 mL 163-13991
Sodium Ion Standard Solution Na+:1000 in 0.02mol/L HNO3   50 mL 193-09621
Multication Standard Solution I Ca2+:100、Mg2+:100、 Na+:100 in 0.02mol/L HNO3   50 mL 136-14561
Multication Standard Solution II K+:100、Na+:100、 NH4+:100 in 0.02mol/L HNO3   50 mL 130-14601
Multication Standard Solution III Ca2+:50、K+:50、Li+:5、 Mg2+:30、Na+:20、 NH4+:25 in 0.02mol/L HNO3   50 mL 137-14611
Eluents

These eluents are usable for analysis of cations and anions. They can be used only by diluting 100-fold with water.

Product Name Composition Grade Package Size Wako Cat. No.
for Analysis of Monovalent Cations
Ion Chromato-Eluent C Aqueous solution of 0.1 mol/L HNO3 for Ion Chromatography 1 L 095-03251
20 mmol/L 2,3-Diaminopropionic Acid Solution - for Ion Chromatography 100 mL 044-26161
or Analysis of Monovalent and Bivalent Cations
2 mol/L Methanesulfonic Acid Solution - for Ion Chromatography 100 mL 131-12551
for Analysis of Anions
Ion Chromato-Eluent A-D Aqueous solution of 0.24 mol/L NaCO3 and 0.3 mol/L NaHCO3 for Ion Chromatography 1 L 091-03231
Ion Chromato-Eluent A-Y Aqueous solution of 0.4 mol/ L NaCO3 and 0.4 mol/L NaHCO3 for Ion Chromatography 1 L 098-03241

※ A-D: For equipment of Dionex ※ A-Y: For equipment of Yokogawa