Available ISE sensors

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Ion

ppm (mg / L)

pH

Interferences(1)

ISA buffer

Ammonium

0.05 – 9000

4  - 8.5

  K+,Na+

  1M MgSO4

Barium

0.5 - 13000

3 – 10.0

  Sr2-

 

Bromide

0.4 - 80000

1 - 12

  Ag+, S2-

  5M NaNO3

Cadmium

0.1 - 11000

3 - 7

  Ag+, S2-

  5M NaNO3

Calcium

0.1 - 5800

3.5 - 11

  K+, Na+

  1M KCl

Cyanide

0.1 - 260

11 - 13

 

  10M NaOH

Chloride

1 - 35000

2 - 12

  I-, Br-, S2-, CN-, Ag+

  2M KNO3

Magnesium

0.1 - 5000

1 - 91

   K+,Na+, Ca2+

  

Copper

0.06 - 64000

2 - 7

  Ag+, S2-

  5M NaNO3

Fluoride

1 - 19000

4 - 8

  OH-

  TISAB*

Iodide

0.1 - 120000

2 - 12

  Ag+, S2-

  5M NaNO3

Nitrate

0.3 - 60000

2 - 11

  Br-, NO2-, OH-, CH3COO-

  2M (NH4)2SO4

Nitrite

0.5 - 500

4.5 - 8

  CH3COO-

 

Perclhorate

0.2 - 99600

0 - 11

  SCN-, I-, NO3-

  1M CH3COONa

pH

 

4.5 - 11

 

 

Potassium

0.3 - 39000

2 - 12

  Ru2-, Cs2+

  1M NaCl

Silver

0.01 - 107900

1 - 9

  S2-, Hg+2

  5M NaNO3

Sodium

0.05 - 20,000

3 - 10

  K+,NH4+

 

Sulphide

0.03 - 32000

13 - 14

  Ag+, S2-

  10M NaOH