Systea S.p.A.
Analytical Technologies
Displaying items by tag: Total Phosphorus
Saturday, 15 January 2011 14:51
Routine laboratory analyzers
Our routine laboratory analyzers are used when the laboratory has the need to measure a lot of water samples in short time.
Our product range covers most of the needs for automatic and reliable routine analysis of inorganic compounds in water and water extracts, like Ammonia, Nitrate, Nitrite, Orthophosphate, Silicates, Total Nitrogen, Total Phosphorus, Total Dissolved Iron, Chromium, Aluminium, Manganese, Copper, Nickel, Zinc, Alkalinity, Hardness, Sulphate, Residual Chlorine, Chloride, Calcium, Magnesium and Boron and specific organic compounds like Cyanide, Phenols, Urea and TOC.
Main products are the following:
- FlowSys: 3rd generation Continuous Flow Analyzer
- EasyChem Jr: compact direct reading discrete analyzer
- EasyChem Plus: flow-cell based discrete analyzer
- EasyChem 200: direct reading discrete analyzer
- Easychem ECO: discrete analyzer to measure pH, conductivity and turbidity
- Easychem TOX: direct reading discrete analyzer for acute toxicity tests.
All the laboratory analyzers are managed by a PC under Windows® O.S. and our exclusive Fusion SW.
Published in
Routine laboratory Analyzers
Tuesday, 06 April 2010 12:35
In-situ Probes
SYSTEA proposes a series of submergible multiparametric in-situ probes for sequential automatic analysis of up to four nutrients or other chemical parameters in surface and sea water.
Our probes are specifically designed for unattended monitoring in oceanographic research, environmental protection and biological studies; the following models are available:
The standard wet chemistries for nutrients analysis used in our in-situ probes are optimized to be used for unattended water quality monitoring in surface and sea water: NH3: fluorimetric OPA method PO4: Molibdate, Ascorbic acid colorimetric method NO3+NO2: UV reduction + NED, SAA colorimetric method NO2: NED, SAA colorimetric method.
Other chemical parameters available are: Silicates Total Phosphorous Total Nitrogen Total Dissolved Iron Sulphide.
Features and benefits
Up to four parameters sequentially measured Easy reagents replacement Low reagents consumption (about 200 microliters of each reagent for analysis) Reagents sealed bags refrigerated by surrounding water.
Advanced functionality Toxic waste is collected in a special bag placed inside the reagents compartment (NPA / DPA Pro) or outside the probe's body (WIZ) DI water is used to wash the hydraulic circuit and to perform a diluted measurement Self-cleaning filtration unit available as option.
Published in
In-situ multiparametric probes
Wednesday, 07 April 2010 08:27
Micromac Total N&P
On line analyzer for nitrogen and phosphorus
monitoring in surface and waste water
Micromac C TN&TP is designed to analyze Total Nitrogen and Total Phosphorus in the same device; UV digestion is applied for Total N, UV and high temperature digestion for Total P.
The measurement is performed in a combined mode, ensuring one hour of measurement for both parameters; 4-20 mA data output is provided at the same time.
Measurement method
The sample after proper filtration is pumped inside the LFA reactor, where after injection of H2SO4 is trapped inside the high temperature heating bath for inorganic P hydrolysis. During the hydrolysis time, the analyzer runs a complete TN test on the same sample, by adding the oxidation reagents and passing through a UV digestion step, to convert Nitrogen into Nitrate by UV radiation in persulfate alkaline medium. The nitrates formed are then reduced to nitrites by hydrazinein alkaline solution, where copper is used as catalyst; the nitrites react with sulphanilamide and naphtylethylendiamine in acid solution, to form a pink colored compound measurable at 550 nm. The reactor is washed and then the analyzer opens the heating bath and adds in the digested sample a proper oxidant to convert all the organic forms of phosphorus into orthophoshate, by the double action of potassium persulphate and UV radiation in acid environment. The orthophosphate formed reacts with molybdate to form phosphomolybdate, which is finally reduced to bluemolybdenum by ascorbic acid. The coloured complex is read at 660 or 880 nm.
Technical specification
| Total N | Total P | |
| Measuring principle | Colorimetric, UV digestion + UV reduction to NO3 | Colorimetric, acidic hydrolosis and UV digestion |
| Measuring range | 0-5/10/20/50 mg/l as N | 0-3/5/10 mg/l as P |
Features and benefits
- TN&TP measured in the same device
- One hour analysis time for both parameters
- Fully automatic operation
- Long autonomy; low maintenance and operating cost
- Low reagents consumption
- Easy operation; plug in analyzer, no special training is required
- Electronics and hydraulics separated
- Serial interface for local or remote PC connection
The results of the analysis are displayed in the same moment, after 1 hour.
Published in
On-line analyzers