SKU HI 97723
Hexavalent chromium salts are used in various industrial applications, such as in the manufacture of paints, dyes, explosives, and ceramics, and extensively in the metal finishing and plating industries. Due to its toxicity to humans, animals, and aquatic life, hexavalent chromium is actively monitored and neutralized in wastewater from the above industries.The HI97723 uses an adaptation of the ASTM Manual of Water and Environmental Technology, D1687-92, dipHenylcarbohydrazide method to measure chromium VI concentrations up to 1000 ?g/L (ppb). When the dipHenylcarbohydrazide reagent is added to samples containing chromium VI, the sample will turn a purple hue; the greater the concentration, the deeper the color. The associated color change is then colorimetrically analyzed according to the Beer-Lambert Law. This principle states that light is absorbed by a complementary color, and the emitted radiation is dependent upon concentration. For higher levels of chromium VI, a narrow band interference filter at 525 nm allows only green light to be emitted and passed through the sample cuvette. As the change in color of the reacted sample increases, absorbance of the specific wavelength of light also increases, while transmittance decreases.
CAL CheckAdvanced features including CAL-Check to verify performance and if necessary, recalibrate.
Multiple Chemical FormsResults can be displayed in multiple chemical forms.
Setup OptionsBacklit dot matrix LCD that offers an exceptionally intuitive user interface that is easy to read and understand.
Tutorial ModeTutorial mode for step-by-step instructions to guide a first-time user in how to perform a measurement correctly.
Reaction TimerBuilt-in reaction timer that ensures consistency amongst multiple users.
High Efficiency Light Source:
High Quality Filters:
Greater Light Yield:
A focusing lens collects all of the light that exits the cuvette, eliminating errors from imperfections and scratches that may be present in the glass. The use of the convex lens reduces the need for indexing cuvettes.
CAL Check Functionality:
Intuitive Dot Matrix Display:
Auto-off Protection:
| Peso | 0,5 kg |
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