FI - Lab on Valve®
The LOV modules are standard components of FIAlab 2500 and FIAlab 2600 instruments.
The advantage of LOV design is transparency of the entire flow path, that allows the user
visual inspection of all manifold components, including injector valve and flow trough cell,
at any time, without interruption of ongoing automated assays.
Single Channel FI-LOV
Sample Injection by Two Position Valve
The Flow Injection technique employs a two position valve for injection of a well defined sample volume into the carrier stream containing regents. The sample volume is defined by the volume of an external sample loop – selectable by the user. The sample is aspirated into the loop in the LOAD position and inserted into the carrier steam after the rotor of the two position valve has moved into the INJECT position.
LOAD
INJECT
Single Channel FI lab-on-valve® System
The FI –LOV manifold comprises a two position injection valve, furnished with an external loop. The valve is integrated with a manifold is equipped with T joints where the carrier stream merges with reagent streams. The structure has threaded outlets that accommodate fittings and mixing coils along with a flow cell for UV-VIS spectrophotometry, connected to light source and detector by means of optical fibers. The LOV manifold is available either in Perspex as shown here, or in ULTEM.
Single Channel FI-LOV Manifold
For further details see FIAlab 2500 and Flow Injection page
Dual Channel FI-LOV
This unique valve configuration has been designed to save cost and bench space, and to accelerate sampling rate (sample has less distance to travel to fill both sample loops), The result is a compact instrument suited for laboratories performing routine assays at an yet unprecedented
productivity and time saving.
For further details see FIAlab 2600
For information on applications see Agricutural and
Environmental Assays page.
Dual Channel FI-LOV in ULTEM
Specifications
FI-LOV fabricated from Plexiglas; fully transparent, wetted surfaces PEEK, Teflon and Plexiglas. Compatible with water solutions of reagents, acids and bases
(up to 0,5M) and ethanol or methanol /water solutions up to 10%. w/w.
FI-LOV fabricated from ULTEM: partially transparent, wetted surfaces PEEK, Teflon, ULTEM.
Partial Chemical Compatibility list for ULTEM:
Acetic Acid, Acetone Alconox Acetone, Alconox , Carbon Tetrachloride, Cellosolve, Chromic Acid, Citric Acid, Clorox, Cyclohexane, Cyclohexylamine, Ethanol, Ethyl Acetate, Ethyl Ether, Formic Acid, Gasoline, Hexane, Hydrochloric Acid, Isopropanol, Kerosene, Lestoll 1, Methanol, Methylethyl Ketone (MEK), Naphtha, Nitric Acid, Phenol, Phosphoric Acid, Potassium Carbonate, Potassium Hydroxide, Propylene Glycol, Skydrol, Sodium Hydroxide, Sulfuric Acid, Tetrachloroethylene, Tin Chloride, Toluene, Trichloroethane (1,1,2-), Triethylphosphate, Xylene, Zinc Chloride
Examples of Analyte Combinations
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Throughput: Assay Results
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Nitrate and Nitrite
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240
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Nitrate and Ammonia
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120
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Nitrate and Chloride
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240
|
Nitrate and Sulfate
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120
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Ortho Phosphate and Nitrate
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240
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Ortho Phosphate and Ammonia
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120
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Bray Phosphate and Potassium
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240
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