Potential Interferents; Rdo Cap Chemical Incompatibility; Conductivity/Temperature Sensor - In-situ Aqua TROLL 500 Operator's Manual

Potential Interferents

pH
Sodium salts (at pH >12)
Dissolved Oxygen
Temperature, atmospheric pressure, salinity,
chlorinity
Ammonium
Cesium, Potassium, Thallium, pH, Silver, Lithium,
Sodium
Nitrate
Perchlorate, Iodide, Chlorate, Cyanide, Bromide,
Nitrite, Hydrogen Sulfide (bisulfite), Hydrogen
Carbonate
(bicarbonate), Carbonate, Chloride, Dihydrogen
Phosphate, Hydrogen Phosphate, Phosphate,
Acetate, Fluoride, Sulfate

RDO Cap Chemical Incompatibility

The following chemicals will damage the RDO sensing element.
• Alcohols > 5%
• Hydrogen peroxide > 3%
• Sodium hypochlorite (commercial bleach) > 3%
• Gaseous sulfur dioxide
• Gaseous chlorine
• Do not use in organic solvents (e.g., acetone, chloroform, methylene chloride, etc.), which may
destroy the sensing element

Conductivity/Temperature Sensor

Soaking the Conductivity/Temperature sensor in vinegar for longer than one hour can cause
serious damage.
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Conductivity
Temperature
ORP
Ions that are stronger reducing agents than
hydrogen or platinum, e.g., chromium, vanadium,
titanium, etc.
Chloride
Hydroxide, Ammonia, Thiosulfate, Bromide, Sulfide,
Iodide, Cyanide
BGA-PC, BGA-PE, Chlorophyll a, Rhodamine WT
Turbidity
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