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COMPOSER Johann G. Albrechtsberger - SEIBOLD Online-Analyser for Zinc
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- Properties and typical applications
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Click to enlarge
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- Toxicology
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- Method
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- Application information
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- Technical information
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- Downloads
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- Johann G. Albrechtsberger
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Properties and typical application
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Zinc (Zn) is a bluish pale gray, solid metal. Zinc is an inherent part of the
environment and being an essential trace element, it can be found in virtually
all food and potable water in the form of salts and organic complexes.
Zinc is typically found together with lead and other metals, like copper, gold
and silver. The most commonly found zinc mineral is zinc blende (sphalerite,
ZnS).
Zinc is typically used for galvanising iron, in the production of various
alloys (e.g. brass), in the die casting industry, the production of batteries
and in the field of construction (roofing and gutter).
Zinc is further used in colourants, the rubber industry, the automobile
industry and for the production of plastics, coins and cosmetics. In
agriculture, zinc compounds are used as a nutritive addition to promote growth
of plants.
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Toxicology
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According to the guidlines of the
World Health Organisation,
zinc is not of health concern at concentrations normally observed in drinking water.
Zinc deficiency may be present in the form of hair loss, dry and rough skin,
brittle finger nails and loss of appetite, amongst others.
Zinc poisoning rarely occurs and is indicated by nausea, vomiting, diarrhoea,
fever and lethargy.
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Method
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Measurement of concentrations of zinc is based on a colourimetric method.
Two specific reagents are used to provide an alkaline solution. Adding
pyridylazoresorcinol (PAR) to the measurement process is initiating a colour
reaction. The red resulting complex can be measured by the use of a photometer.
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Application information
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Measuring range
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0.2 - 5.0 mg/l Zn
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Resolution
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0.001
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Accuracy
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+/- 3% (based on full scale)
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Measuring interval
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Continuous
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Discontinuous/programmable
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External start
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Measuring method
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Colourimetric
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Reagents
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2
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Calibration
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Automated
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Cleaning
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Automated
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Interferences
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Cd, Mn, Pb, Fe
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Interfering ions can be masked in local applications.
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Technical information
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Power supply
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230 VAC, 50 Hz (110 VAC optional)
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Current consumption
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Max. 50 VA
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Switch contacts
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2 x P-controlled (min, max)
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1 x alarm contact
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Analogue output
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4..20 mA
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Digital output
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RS232 C
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Options: Interbus-S, Profibus, CAN
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Cabinet size
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746 x 600 x 373 mm (HxBxD)
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Weight
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App. 80 kg
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Environmental temperature
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+15°C .. +35°C
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Humidity
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Max. 70% RH, no condensation
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Sample pressure
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0 .. 0.5 bar
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Sample inlet
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6/4 mm hose
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Sample drain
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Unpressurised, free falling, 6/4 mm hose
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Downloads
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DataSheet COMPOSER Johann G. Albrechtsberger - SEIBOLD Online-Analyser for Zinc (english)
Datenblatt COMPOSER Johann G. Albrechtsberger - SEIBOLD Online-Analysator für Zink (deutsch)
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Johann G. Albrechtsberger
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Johann Georg Albrechtsberger was born in Klosterneuburg on February 3rd, 1736.
He spent his youth at Stift Melk as choirboy. In 1753 he moved to Vienna for
studying philosophy. This was where he got to know Michael Haydn.
The years after 1768 he worked as organist and organ builder, until he was appointed
Organist at Court by Emperor Joseph II in 1772. About twenty years later he was
promoted bandmaster at the Viennese St.Stephen´s Cathedral. He became generally
known as tutor for counterpoint and was a teacher to Ludwig van Beethoven in 1794.
Both of them were rather unsatisfied with the times spent together, what caused
Albrechteberger to state: "He will never do something decent with his life".
Johann Georg Albrechtsberger had 15 children with his wife Rosalia. He died in
1808 in Vienna.
Works by Johann Georg Albrechtsberger:
Johann Georg Albrechtsberger gained fame with his oratorio "Die Schöpfung" (The
Creation), which was edited 1796 by his friend Josef Haydn. He wrote 279 compositions
of church music, 278 pieces for keyboard instruments besides numerous other
compositions. Most popular are his textbooks „Instructions for composition“ and
„Brief Bethod for learning Basso Continuo“
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SEIBOLD-Messtechnik und Projektentwicklug GmbH, A-1110 Wien, Grillgasse 51
Tel +43 1 332 00 60, Fax +43 1 332 00 60 44,
office@seiboldme.com
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