water+analysis

Description:   Carbonate rock formed by the precipitation from water.

Description:   Ward's® 1100 Visible spectrophotometer is perfectly designed for high school and college students completing general analysis and experiments such as Beer-Lambert, Absorption Spectrum, Transmittance, Chlorophyll, protein (biuret test) and more. An included visible wavelength spectrum chart on the instrument panel allows the user to make the correlation between a wavelength number to an actual color on the visible light spectrum. The built-in secondary filters reduce stray light and increase precision. The design is "Student-Proofed" making this a durable unit for years of use. Large digital display makes reading much easier and the new USB interface allows for the collection of data via a computer. This spectrophotometer is designed for use with ¹/₂" (13 mm) round tubes or 10 mm square cuvettes. an adapter is supplied at no additional charge for 10mm square cuvettes. High quality silicon photodiode detector and 1200 lines/mm grating assures high performance. Auto zero function, one-touch blanking and built-in automatic filters for easy operation. Large digital display allows for quick and easy readings. Optional Windows(R) based software for easy data collection and application expansion to Standard Curve and Kinetics, Abs. and %T is available. Data can be easily exported to Microsoft Excel(R) for further processing and analysis. The software is designed for Windows based PCs, using Windows 2000, ME, or XP. Model 1100 measures Absorbance, Transmittance and now includes a USB port.

Description:   Wards® Visible Spectrophotometers are perfect for your classroom or laboratory. The easy-to-use 1208 and 1204 are ideal for any standard application, while staying within a conservative budget. They have a high quality silicon photodiode detector and 1200 lines/mm diffraction grating that assures high performance, as well as a large digital display and built-in, automatic filters for easy operation. These spectrophotometers feature Absorbance, Transmittance, Factor and Concentration modes, as well as automatic zeroing and blanking with the touch of a single button. The 1208 and 1204 visible spectrophotometers feature both USB and RS-232C ports for data transfer and you can select optional Windows® based software for easy data collection and application expansion to standard curve and kinetics, Abs. and %T. Data can be easily exported to Microsoft Excel® for further processing, analysis and storage. Software can be used with Windows® 2000, ME, and XP. Bulb changes are quick and easy when needed and require no tools, or alignment. The large sample compartment can accept cuvettes up to 50 mm path length and can accept a variety of optional accessories.

Description:   Wards® UV/VIS Spectrophotometer is the perfect solution for your classroom or laboratory when ultraviolet and visible analysis is a must! Built-in software offers wavelength scanning, as well as a large 4-line LCD display that can be read from any angle. The touch buttons make commanding easy and data entry quick and convenient. The menu is task driven and makes your spectrophotometer very user-friendly. A large on-board memory is capable of storing 200 test methods (standard curves) and saving up to 500 test data. Each unit comes standard with both USB and RS-232 data ports for communication. Two optional features make documentation and reporting a snap; optional software for PCs which includes scanning capability. The USB port can be used for both data transfer and software upgrades. The optional Windows® XP based software expands the capabilities of the instrument including Standard Cuvettes, Kinetics, Abs. & %T, DNA/Protein ratio and wavelength scanning. Data can be easily exported to Excel® for further processing, analysis and storage.

Description:   This organism is commonly isolated from soil or water, and produces a pink or rose colored pigment.

Description:   Freshwater. Colonial. Sheet of many cells one cell thick. Soil-water medium.<BR><BR>Shipped in a form that provides the best quality specimen. Most are supplied in 16 x 125 mm tubes, 2 oz. jars, or 8 oz. jars.

Description:   Freshwater. Unicellular. Soil-water medium. Characterized by two flagella (one inside a groove at right angles to the other); most also have tests made of cellulose and are encrusted with silica.

Description:   The professional-grade equipment in the Advanced Electrophoresis Bundles comes in a variety of sizes for any lab or class.

Description:   Large embryos with a clear coating makes them ideal for observing development.

Description:   Demonstrate photosynthesis and respiration in action with our ready-made algae beads.

Description:   These balances are perfect for school laboratory, AP class, or prep-room use.