Go Direct™ SpectroVis® Plus Spectrophotometer

Dieses Colorimeter mit 4 Wellenlängen bietet eine automatische Kalibrierung auf Tastendruck. Mitgeliefert werden 15 3,5 ml-Küvetten. Ersatzküvetten (100 St./Pack mit 20 Deckeln) sind erhältlich ( CUV) Spezifikationen Wellenbereich: 430 nm, 470 nm, 565 nm, 635 nm Anschlussmöglichkeiten: Bluetooth 4.0 (drahtlos) oder USB (kabelgebunden)

Simplify the measurement of absorbance spectra of chemical and biochemical compounds with the Go Direct UV-VIS Spectrophotometer. This sensor connects to your device via Bluetooth® wireless technology or USB, making it easy to collect accurate measurements and generate full spectra, Beer’s law data, and kinetic traces of ultraviolet and visible-absorbing samples (such as aspirin, DNA, proteins, and NADH). Compatible with LabQuest® 2, LabQuest 3, Vernier Spectral Analysis®, and Logger Pro® 3, the Go Direct UV-VIS Spectrophotometer promotes student engagement through data visualization and analysis. To conduct emission spectra experiments, simply attach the Vernier Spectrophotometer Optical Fiber. Specifications Detection modes: Absorbance, %Transmittance, Intensity, and Raw Lamp Experiment types: Full Spectrum, time-based (kinetics), and event-based (Beer’s law) Dimensions: 18.5 cm × 17.0 cm × 7.0 cm Lamp power supply: AC adapter (included) Bluetooth power supply: USB (USB power adapter included) Power consumption: 3 A start-up, 500 mA continuous Light source: Deuterium (UV) and incandescent (VIS) Detector: Linear CCD Wavelength range: 220–850 nm Wavelength reporting interval: ~1 nm Optical resolution: 3.0 nm (as determined with 486 nm hydrogen emission spectral line FWHM) Wavelength accuracy: ± 2.0 nm (as determined with holmium oxide NIST standard) Absorbance photometric accuracy: ± 5.0% (as determined with potassium dichromate NIST standards) Absorbance photometric range (for best accuracy): 0.1–1.0 Typical scan time: ~2 s Operating temperature: 15–35°C Sample format: 10 mm × 10 mm cuvette (two UV quartz cuvettes included) ExperimentsFree Experiment Downloads Preview and/or edit the spectroscopy experiments for your curriculum by downloading a zip file for each of the experiments below. Each experiment’s zip file contains two student versions (one for use with Logger Pro®/LabQuest® and one for Vernier Spectral Analysis®) as well as an instructor version. The Student download includes objectives, materials, procedures, and analysis for use with Vernier Spectral Analysis®, LabQuest®, or Logger Pro®. The Instructor download includes notes, sample results and graphs, and answers. Malate Dehydrogenase Enzyme Assay The Synthesis and Analysis of Aspirin Nucleic Acid Quantitation  

Elevate emissions analysis with the Go Direct Emissions Spectrometer. This device connects via Bluetooth® wireless technology or USB to a tablet, computer, or LabQuest®. With the Go Direct Emissions Spectrometer, students can measure spectra of light-emitting samples in the range of 350 to 950 nm. The sensitivity of the linear CCD allows this spectrometer to be used with light bulbs, spectrum tubes, or the sun.  Display and analyze spectral data on LabQuest 2, LabQuest 3, Logger Pro®, or Vernier Spectral Analysis®. For analyzing the emissions of a spectrum tube, an optical fiber is recommended. For measuring spectra of large sources (such as the sun) or comparing types of light bulbs, the optical fiber is not necessary.  Specifications Dimensions: 10.1 cm × 7.0 cm × 4.5 cm Power supply: USB powered Detector: Linear CCD Wavelength range: 350–900 nm Wavelength reporting interval: 1 nm Optical resolution: 3.0 nm (as determined by the full width of half maximum of hydrogen 434 nm peak) Wavelength accuracy: ±2 nm (as determined by hydrogen peaks) Experiments Spectrum of Atomic Hydrogen Planck’s Constant

Forensics with Vernier is for teachers at the high school level who wish to introduce their students to forensics using engaging and realistic laboratory activities with Vernier probeware. Containing lab activities dealing with various aspects of forensic science, each lab is preceded by a short scenario that introduces the concepts or methods to be addressed in the lab. These introductory sequences are designed to “hook” the students and show them situations that require various forensic techniques. The Case Analysis questions for each activity relate to the concepts and techniques addressed in the lab, and many require the students to “solve” the crime introduced in the scenario with the data they collect. Forensics with Vernier has printed student instructions for computer data collection with LabQuest App and EasyData instructions on the accompanying CD.

Set your students up for success with the Go Direct Fluorescence/UV-VIS Spectrophotometer. Geared toward upper-level chemistry, this innovative device combines the functionality of a fluorometer with the power of a UV/VIS spectrophotometer. The Go Direct Fluorescence/UV-VIS Spectrophotometer allows students to conduct fluorescence data collection back-to-back with absorbance data collection in a single instrument. This supports quantum yield studies, quenching investigations, kinetics, Beer’s law, and simple fluorescence detection with samples such as quinine sulfate, DAPI, GFP, and tryptophan. Excitation LEDs included are 375 nm, 450 nm, and 525 nm—other wavelengths can be purchased separately. Inquire about custom wavelengths. To conduct emission spectra experiments, simply attach the Vernier Spectrophotometer Optical Fiber.  Additionally, the Go Direct Fluorescence/UV-VIS Spectrophotometer connects directly to a tablet, computer, or LabQuest®, offering students the flexibility to work with many technologies used in chemistry labs. Data can be collected and analyzed using our LabQuest 2, LabQuest 3,  Logger Pro® software, or free Vernier Spectral Analysis® software, which allows users to spend less time learning different interfaces and more time in the laboratory. Specifications Detection modes: Absorbance, Fluorescence, %Transmittance, Intensity, and Raw Lamp Experiment types: Full Spectrum, time-based (kinetics), and event-based (Beer’s law) Dimensions: 18.5 cm × 17.0 cm × 7.0 cm Lamp power supply: AC adapter (included) Bluetooth power supply: USB (USB adapter Included) Power consumption: 3 A start-up, 500 mA continuous Absorbance light source: Deuterium (UV) and incandescent (VIS) Emission light source: Exchangeable LED (ships with 375 nm, 450 nm, and 525 nm) Detector: Linear CCD Wavelength range: 220–850 nm Wavelength reporting interval: ~1 nm Optical resolution: 3.0 nm (as determined with 486 nm hydrogen emission spectral line FWHM) Wavelength accuracy: ±2.0 nm (as determined with holmium oxide NIST standards) Absorbance photometric accuracy: ±5.0% (as determined with potassium dichromate NIST standards) Absorbance photometric range (for best accuracy): 0.1–1.0 Typical scan time: ~2 s Sample format: 10 mm × 10 mm cuvette (UV fluorescence cuvette included) Fluorescence emission detection limit: 1 mg/L quinine sulfate dihydrate in 0.1 M H2SO4 Experiments Free Experiment Downloads Preview and/or edit the spectroscopy experiments for your curriculum by downloading a zip file for each of the experiments below. Each experiment’s zip file contains two student versions (one for use with Logger Pro®/LabQuest® and one for Vernier Spectral Analysis®) as well as an instructor version. The Student download includes objectives, materials, procedures, and analysis for use with Vernier Spectral Analysis®, LabQuest®, or Logger Pro®. The Instructor download includes notes, sample results and graphs, and answers. Absorbance and Fluorescence Characterization of Quinine A Guided Inquiry Approach to Understanding Fluorescence Spectroscopy

Increase student engagement in your laboratory and classroom with the Go Direct Visible Spectrophotometer. Its quality optical bench allows for high accuracy and reproducibility, making this spectrometer an ideal option for upper-level courses. In addition, the spectrometer housing is aluminum, which helps alleviate temperature fluctuations during a long kinetics experiment.  The Go Direct Visible Spectrophotometer comprises a lamp with cuvette holder and a detector. These two pieces are held together magnetically, allowing them to be easily separated for high-accuracy emissions experiments with our Vernier Emissions Fiber.  To collect spectral, kinetic, or Beer’s law data, simply connect the Go Direct Visible Spectrophotometer directly to a tablet, laptop, or Chromebook™, via USB or Bluetooth® wireless technology. Data can be collected and analyzed using our LabQuest® 2, LabQuest 3, or free Vernier Spectral Analysis® software, which allows users to spend less time learning different interfaces and more time in the laboratory. The Go Direct Visible Spectrophotometer can be used in a variety spectroscopy experiments: Determine peak wavelength to collect data on solution concentration for studies of Beer’s law or to monitor rates of reaction.  Conduct enzyme kinetics experiments. Engage in equilibrium studies of absorbance vs. time or absorbance vs. concentration. Use the Spectrophotometer Optical Fiber to measure emissions from flame tests or other light sources.  Specifications Wavelength range: 380 nm–950 nm Reported wavelength interval: ~1 nm between reported values Optical resolution (FWHM): 3.0 nm Wavelength accuracy: ± 2.0 nm Absorbance photometric accuracy: ± 0.05 A.U. Typical scan time: ~2 s