Spectrometry - Page 11

Manufacturer: Harvard Bioscience Brand: Biochrom WPA Model: 80-3000-45

The Biochrom WPA CO8000 is a robust, easy to use instrument dedicated to the measuring of the density of cells in suspension such as E. Coli, yeast, cells and other cell cultures. This hand held instrument has an integral battery allowing it to be taken to where the cell cultures are growing e.g. in incubation cabinets, under anaerobic conditions or even in a fume hood or safety cabinets. This robust instrument will accept a variety of cuvettes and tubes- including 10, 12, and 16mm diameter test tubes meaning it can be used with Erlenmeyer side arm flasks. With no warm up time, just switch it on and it’s ready to use giving you results that are comparable to larger, more expensive spectrophotometers. The cell density of the cultures can be measured and the results stored in the memory. The results are given in Absorbance Units (OD). Once all measurements are taken, the up to 99 sample results can be viewed on the easy to read screen or the instrument can be connected to a PC or printer and the results downloaded. This low maintenance instrument uses an indefinite life LED with fiber optics and no filters. The rechargeable battery automatically recharges when connected to the mains and allows up to 1 month's normal use (under normal conditions) on a single charge. It is easily cleaned with ethanol or sterilized with formaldehyde or ethylene oxide. It is important to note that cell cultures are turbid samples, so the Absorbance (OD) measured is due to light scattering, and not due to molecular absorption. Clumping together of cells will also affect readings, so the medium they are suspended in will also make a difference. This means that the actual reading obtained is very dependent on the collecting area of the detector after the sample and the optical geometry of the system. These vary depending on the make and model of instrument, so differences in readings between types of instruments are to be expected.

Manufacturer: International Crystal Labs Brand: International Crystal Labs

ZNSE SEALED FTIR CELL- 0.2MM ZNSE SEALED FTIR CELL- 0.2MM For FTIR instruments- ZnSe, 0.2mm pathlength.Unit: Each This listing is for Each

Manufacturer: International Crystal Labs Brand: International Crystal Labs

ZNSE SEALED FTIR CELL- 0.015MM ZNSE SEALED FTIR CELL- 0.015MM For FTIR instruments- ZnSe, 0.015mm pathlength.Unit: Each This listing is for Each

Manufacturer: International Crystal Labs Brand: International Crystal Labs

ZNS SEALED FTIR CELL- 0.025MM ZNS SEALED FTIR CELL- 0.025MM For FTIR instruments- ZnS, 0.025mm pathlength.Unit: Each This listing is for Each

Manufacturer: Unico Brand: Unico

UNICO S1200 Series is the best value in a precise, accurate 5nm design. High quality silicon photodiode detector and 1200 lines/mm diffraction grating assures high performance. Large digital display and built-in, automatic filters for easy operation. 1200's feature Absorbance, Transmittance, Factor and Concentration modes. The S1200 Series feature both USB and RS-232C ports for data transfer. Optional Windows® XP/7 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. The 50mm sample compartment can accept a variety of accessories. The easy-to-use UNICO S1200 ideal for any standard spectrophotometer application, while staying within a conservative budget. Model S1200 comes standard with a V-type round tube holder, a single square cuvet holder, 12 round optical glass cuvets, a set of two optical square glass cuvets, operation manual and dust cover. Model S1201 comes standard with a 4-cell (four position) 10 mm, square cuvet changer, set of two optical glass square cuvets, manual and dust cover.

Manufacturer: Markes International Brand: Markes International Model: C-DL100

Cap, DiffLok, stainless steel for 1/4" o.d. thermal desorption sorbent tubes, pack of 100.

Manufacturer: Thomas Scientific Brand: LABOMED Model: UV-2505

The Labomed Spectro UV-2505 UV and visible-light spectrophotometer has a multi-cell receptacle to measure transmission, absorption, concentration, and factor for routine quantitative analysis in a range of applications and industries, including chemical, petrochemical, biochemical, agriculture, environmental protection, and education. The instrument has a 4nm spectral bandwidth and a 195 to 1,050nm wavelength range for use in the ultraviolet and visible-light spectral range. It has a 0 to 100%T transmittance range, 0.0000 to 2.0000A absorption range, and 0 to 1,999C concentration range. It has tungsten-halogen and deuterium lamps, a silicon photodiode detector for reduced noise, and a monochromator with a 1,200 lines/mm grating mirror. The instrument automatically calculates absorption, transmittance, factor, and concentration, and auto-zero and auto-calibration ensure consistent results. The spectrophotometer has a receptacle that accepts up to four 10 x 10mm square cuvettes and 13mm round test tubes (adapter sold separately). The LCD provides access to controls and test results, and the capacitive-touch buttons ease cleaning and prevent liquids from entering the device. An RS-232C interface enables data to be transferred to a computer (sold separately). The included UV-VIS software provides data analysis and long-term records retention, and is compatible with Windows XP, Vista, and Windows 7. SpecificationsWavelength range195 to 1,050nmSpectral bandwidth4nmWavelength accuracy and reproducibility±2nmMonochromator1,200 lines/mm grating mirrorDetectorSilicon photodiodeLight sourceTungsten-halogen and deuterium lampPhotometric range0 to 100%T, 0.000 to 2.000A, 0 to 1,999CPower requirements85-260VAC, 50/60Hz, auto-rangingDimensions6.1 x12.2 x 16.1 inches/155 x 310 x 410mm (H x W x D)Weight26.5lb./12kgH is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back. A spectrophotometer is a device us...

Manufacturer: UNICO Brand: Unico

UNICO SpectroQuest Single Beam Scanning Spectrophotometer 220Volts

Manufacturer: Bibby Scientific Brand: Techne Model: 6715

The Jenway 6715 UV/VIS spectrophotometer has a 190 to 1100nm wavelength range, a 1.5nm spectral bandwidth, and a xenon lamp, and is used in life science applications and general spectrophotometry applications including photometrics, spectrum scanning, multi-wavelength analysis, kinetics, and quantitation. The 1.5nm bandwidth provides lower detection limits and improved signal-to-noise performance. The instrument provides multi-user login and password protection for up to ten users. Each stored method can be secured to any of three levels, including open access, read-only access, and password-protected personal methods. Post-measurement tools ensure that results are presented exactly to each user's requirements. The xenon lamp provides accurate readings and extends lamp life. The color touchscreen provides navigation, user login, access to pre-programmed methods, and test results. On-board memory stores up to 500 results, and an SD card slot provides or test result portability and system cloning that ensures common laboratory practices. The instrument also has USB, analog, and 36-pin parallel ports to provide connection to a computer or printer (sold separately).SpecificationsWavelength range190 to 1100nmSpectral bandwidth1.5nmAbsorbance range-0.300 to + 3.000AChamber capacity10 x 10mm cuvetteAbsorbance light sourceXenonResults storageUp to 500 on internal flash memory, or removable mediaComputer interfaceSD memory card slot, USB, 36-pin parallel, and analogDimensions220 x 490 x 390mm (H x W xD)Power requirements 100-230VAC, 50/60Hz, auto-detectingH is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to backA spectrophotometer is a device used to measure and analyze aspects of light absorption in liquids and solids. Readings are displayed in digital or analog format. A spectrophotometer can have a handheld body for field use, or a bench-top body for laboratory applications. It may have one or more ...

Manufacturer: United Scientific Supplies Brand: United Scientific Supplies Model: SPTCL01

United Scientific chlorine spectrum tube shows its characteristic spectrum when energized before any spectroscope. Includes instructions giving spectral line information. Tubes require a spectrum tube power supply.