ANALYSIS

SEIBOLD^® Analytics

Please click on Elements and Instruments. Methods of Measurement: photometric ion selective (ise) titration	Online Analysers
pH-Value (pH)
REDOX (mV)
Oxygen (O₂)	Oxygen Sensor
Conducticity (µS)	Conductivity Sensor
Turbidity (TFE/NTU)	0…500 TE/F
Level, Flow, ...	Special Instrument
Aldehyd Group (CHO)
Ammonium (NH₄)	0,1…17.000 mg/l NH3 0,03…4 mg/l NH4
Bromide (Br)	0,4…79.000 mg/l Br
Cadmium (Cd)	1…1.000 mg/l Cd
Calcium (Ca)	0,1…44.000 mg/l Ca 5…160 mg/l Ca
Carbonate (CO₃)	4,4…440 mg/l CO3
Chlorine (Cl₂)	0,1…2,5 mg/l Cl2
Chloride (Cl^-)	1,8…35.000 mg/l Cl 0,4…40 mg/l Cl
Chromate (Cr VI)	0,01…1 mg/l Cr
Carbon Dioxide (CO₂)	4,4…440 mg/l CO2
Copper (Cu)	0…6.300 mg/l Cu 0,05…5 mg/l Cu
Cyanide (CN)	0,2…260 mg/l Cn
Fluoride (F)	0,2…2.000 mg/l F
Fluoroborate (BF₄)	0,6…86.800 mg/l BF4
Iron (Fe)	0,04…4 mg/l Fe
Iodide (I)	1,2…1.300 mg/l I
Hardness (°dH)	0,15…30 °dH
Hydracine (N₂H₄)	1,05…4,5 mg/l N2H4
Lead (Pb)	0,2…20.000 mg/l Pb
Manganese (Mn)	0,01…5 mg/l Mn
Nickel (Ni)	0…2 mg/l Ni
Nitrate (NO₃)	0,1…14.300 mg/l NO3
Nitrite (NO₂)	0,05…3 mg/l NO2
Ozone (O₃)	0,05…1 mg/l O3
Peroxide (H₂O₂)	5…80 mg/l H2O2
Phosphate (PO₄)	0,5…15,0 mg/l PO4
Potassium (K)	0,04…39.000 mg/l K
Silicon (Si)	0,03…3,0 mg/l Si
Silver (Ag)	0,1…10.000 mg/l Ag
Sodium (Na)	0,2…sat. Na
Sulfide (S)	0,02…4 mg/l S
Zinc (Zn)	0,2…5 mg/l Zn

The Ion Selective Principle

The potentiometric method with ionselective electrode a semipermeable membrane or a specific crystall form the core of the measuring.
These are sensitive for a specific element and give a proportional voltage signal. As ion selective electrodes (ISE) usually have a considerable drift and longtime instability, they have to be calibrated permanently, which is performed fully autmatic by SEIBOLD^® Analysers.
The adjusting of the pH-value for the determination can also be done automatically by means of buffers.

The Photometric Principle

The photometrical or colourimetric method is based on the attenuation of a light beam when passing through the measuring sample, which was coloured by a chemical reaction caused by a reagent.
The level of attenuation is a measure of the quantity of the searched element in the sample. SEIBOLD^® Analysers work with a prefilter-unit and strong hoses according to the light-through method with a special-cut cuvette, which makes an expensive ultrafiltration obsolete.
Before every measuring an automatical zero-adjusting is performed, which guarantees precise and repeatable measuring results. This is the basis for reliable operation and low maintenance.

The Titration Principle

Titration is a technique by which we can determine the concentration of an unknown element using a standard concentration of a reagent that chemically reacts with the unknown. This standard solution is referred to as the "titrant". We have to have some way to determine when the reaction is complete that we are using. This is referred to as the "end point" or more technically the equivalence point. At that point all the unknown has been reacted with the standard titrant and some kind of chemical indicator must let us know when that point has been arrived at.

Tel: +43 1 3320060, Fax: +43 1 3320060-44, email: office@seiboldme.com

SEIBOLD® Analytics

The Ion Selective Principle

The Photometric Principle

The Titration Principle

SEIBOLD^® Analytics