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LabAnalyzer 254 Mercury Monitor ENVEA

LabAnalyzer 254 Mercury Monitor ENVEA
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LabAnalyzer 254 Mercury Monitor ENVEA - 1

LABORATORY The Mercury LabAnalyzer 254 is a laboratory tool for rapid and precise determination of mercury concentrations in aqueous samples and sample digests. MERCURY INSTRUMEf l MERCURY VAPOR MONITOR Clinical samples: urine, saliva Chemical industry: environmental protection and quality control Petrochemical industry Scientific research Membrane pump Carbon filter Optical cell Beam splitter II UV detector Cell heating Flowmeter Carbon filter Reaction bottle Schematic drawing of the LabAnalyzer 254 SPECIFIC FEATURES ■ Firmly adjusted optical system ■ Short analysis times ■ Low reagent consumption ■ Automatic zero adjustment ■ For analyses according to DIN 38406-12 / EPA 7470A / EPA 7471A) ■ Measuring range: 0.01 ppb ... 10 ppb (10 ng/l to 10 |jg/l) ■ Hg trap: mercury vapors cannot escape into the lab ■ Upgradable to VM-3000 Mercury Vapor Monitor MEASURING PRINCIPLE The mercury contained in the liquid sample is extracted by an air stream and sucked to the photometer unit equipped with an optical cell made of fused silica. There the quantitative determination of mercury is obtained by measuring UV absorption at a wavelength of 254 nm. This method is commonly known as “cold vapor atomic absorption spectroscopy” (CVAAS). In contrast to a typical multi-element AAS the LabAnalyzer 254 is specially designed for elemental mercury. The use of a specially developed highly stable mercury lamp in connection with thermostat-controlled UV sensors results in top performance in analytical applications. www.envea. global

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LabAnalyzer 254 Mercury Monitor ENVEA - 2

EASY OPERATION The sample is pipetted into a reaction flask and spiked with 0.5 ml reduction reagent e. g. Tin-II-Chloride solution. The flask is then inserted into the reaction unit of the LabAnalyzer 254. Measurement is started by a keystroke. After 60 to 90 seconds the result of the measurement will be displayed on the photometer. Purging of the system is not necessary. An Auto-Zero is performed before each measurement. OPTION A software update can turn the photometer of the LabAnalyzer 254 into an independent and versatile analyzer (Mercury Vapor Monitor VM-3000) that can be used for...

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LabAnalyzer 254 Mercury Monitor ENVEA 2Pages

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LabAnalyzer 254 Mercury Monitor ENVEA
2Pages