Le spectrophotomètre Go Direct SpectroVis Plus mesure rapidement un spectre de longueur d'onde complète. Il se connecte directement à votre plateforme sans fil via Bluetooth® ou câblé via USB. Initiez vos élèves à la spectroscopie à l'aide du spectrophotomètre Go Direct SpectroVis Plus à prix abordable. Cet appareil, qui peut se connecter sans fil ou par USB, peut facilement recueillir un spectre de longueur d'onde complète (absorbance, pourcentage de transmission ou intensité) en moins d'une seconde. Une fois la longueur d'onde de crête déterminée, vous pouvez établir la concentration d'une solution (loi de Beer) ou surveiller les vitesses des réactions. Le spectrophotomètre Go Direct SpectroVis Plus permet d'utiliser le spectrophotomètre Go Direct SpectroVis Plus pour les laboratoires à petite échelle et les applications biochimiques avec micro et semi-micro cuvettes. Le spectrophotomètre Go Direct SpectroVis Plus peut être utilisé pour diverses expériences de spectroscopie: Déterminer la longueur d'onde de crête pour recueillir des données sur la concentration de la solution en vue d'études de la loi de Beer ou pour surveiller les vitesses de réaction. Recueillir un spectre de longueur d'onde complète pour mesurer l'absorbance, le pourcentage de transmittance, la fluorescence (à 405 nm ou 500 nm d'excitation) ou les émissions. Effectuer des expériences de cinétique enzymatique. Effectuer des études d'équilibre de l'absorbance en fonction du temps ou de l'absorbance en fonction de la concentration. Effectuer des bioessais colorimétriques ou fluorescents. Utilisez le spectrophotomètre à fibre optique (VSP-FIBER) pour mesurer les émissions provenant d'essais de flamme ou d'autres sources lumineuses. Pour une analyse plus détaillée des émissions, considérez le spectromètre d'émission Vernier (VSP-EM). Spectroscopie avec Go Direct SpectroVis Plus Pour utiliser le spectrophotomètre Go Direct SpectroVis Plus, téléchargez l'application gratuite Analyse spectrale. L'application est compatible avec les ordinateurs, les Chromebooks et les appareils mobiles. Les élèves peuvent aussi se connecter à LabQuest 2 ou à un ordinateur avec Logger Pro pour effectuer des analyses. Spécifications Gamme de longueurs d'onde: 380 nm-950 nm Support pour la fluorescence: Deux sources d'excitation centrées à 405 nm et 500 nm Intervalle de longueur d'onde signalé: ~1 nm entre les valeurs signalées (collecte de 570 valeurs) Dimensions: 16 cm x 10 cm x 5 cm Sources lumineuses: Ampoule blanche à incandescence, durée de vie d'environ 8 000 heures, étalonnage en une seule étape. À DEL, durée de vie d'environ 100 000 heures. Aucune alimentation extérieure n'est requise.

This is an optical fiber accessory designed exclusively for emission spectrum experiments with Vernier-branded spectrophotometers, including Go Direct® SpectroVis® Plus, Go Direct UV-VIS Spectrophotometer, Go Direct Fluorescence/UV-VIS Spectrophotometer,  Vernier UV-VIS, and Vernier Fluorescence/UV-VIS. It has a wavelength range from 350 nm to 900 nm. For SpectroVis and SpectroVis Plus spectrophotometers, use the SpectroVis Optical Fiber.

A plastic cuvette rack for holding up to 10 cuvettes during experiments.

These spectrum tubes are for the Spectrum Tube Single Power Supply and the Spectrum Tube Carousel Power Supply. The gas tubes are permanently enclosed in plastic carriers that protect the tubes from breakage. There are no through-the-glass electrodes, so the tubes last far longer than older designs.

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  

Package of two Starna Cells quartz cuvettes (3.5 mL) and two lids.

With ultra-safe, patent-pending design, this spectrum tube power supply will provide a simple means of viewing gas discharge spectral lines with any of our spectrometers. Unlike other designs, this system has no exposed high voltage. The gas tubes are permanently enclosed in plastic carriers that protect the tubes from breakage. There are no through-the-glass electrodes, so the tubes last far longer than older designs. The Power Supply will energize one tube at a time, and includes storage space for an additional six tubes. A Spectrum Tube Fiber Optic Holder is included to hold an optical fiber cable in position. User manual

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

Un paquet de 100 couvercles de cuve pour une utilisation avec plastique cuvettes VIS-NIR ou cuvettes UV-VIS.

Use the SpectroVis Optical Fiber with SpectroVis Plus to measure light emissions of LEDs, fluorescent bulbs, or incandescent lights. For spectrum tube emissions, we recommend the Vernier Emissions Spectrometer (VSP-EM). Not compatible to GDX-SVISPL User manual

The affordable Fluorescence/UV-VIS Spectrophotometer is designed specifically for upper-level chemistry courses. Vernier International has combined the functionality of a fluorometer with the power of a UV/VIS spectrophotometer to allow students to easily and accurately conduct numerous fluorescence experiments with compounds such as quinine sulfate, DAPI, GFP, and tryptophan. Exchangeable LEDs ensure you get the exact excitation wavelength needed for your experiment. To conduct emission spectra experiments simply attach the Vernier Spectrophotometer Optical Fiber. The Fluorescence/UV-VIS Spectrophotometer connects directly to a computer or LabQuest. Data can be collected and analyzed using our Logger Pro software, so there is no need to train students on yet another instrument software. Specifications Detection modes: Absorbance and Fluorescence Dimensions: 18.5 cm × 17.0 cm × 7.0 cm Power supply: AC 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, 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 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 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 Included Vernier Fluorescence/UV-VIS Spectrophotometer with LED holder Three exchangeable LED cartridges: 375 nm, 450 nm, and 525 nm Starna UV fluorescence cuvette AC power supply USB cable Carrying case

For use with the Fluorescence/UV-VIS Spectrophotometer, this filter acts as an excitation source to cause the sample to fluoresce. Because the excitation source is an exchangeable LED, not only do you get the standard functionality of a spectrofluorometer but software controls allow students to determine the LED intensity and explore fluorescence as a function of excitation. Available LED Cartridges: VSP 280 nm LED VSP 350 nm LED VSP 375 nm LED VSP 400 nm LED VSP 450 nm LED VSP 500 nm LED VSP 525 nm LED

Paquet de 100 semi-micrométrique (1 - 1,5 ml) et 20 couvercles des cuvettes.

The Vernier Flash Photolysis Spectrometer is a simple, user-friendly device for demonstrating the fundamental principles of chemical kinetics and photochemistry to undergraduate chemistry students. It measures the absorption and emission changes over time of a photoexcited sample at a single wavelength, which is determined by a filter (600 nm filter included). Photochemical reactions are very important in many areas of chemistry with applications including photodynamic therapy and solar energy harvesting. These reactions often proceed quickly and, as a result, require fast reaction techniques to analyze. The Vernier Flash Photolysis Spectrometer is a simple, user-friendly transient absorption spectrometer. It is useful for demonstrating the fundamental principles of these types of fast, photo-catalyzed reactions. Some experiment ideas include kinetics of photochemical reactions such as: Excited-state dynamics Triplet-decay analysis Time-resolved phosphorescence Phosphorescence-quenching kinetics Isomerization Reactive free radicals Photocatalysis Spectral coverage:450–750 nm Temporal resolution:100 microseconds Spectral Resolution:Determined by the interference filter used (10 nm with the included 600 nm interference filter) Minimum time window:15 milliseconds Included:Vernier Flash Photolysis SpectrometerAC power supplyOne fluorescence quartz cuvetteUSB cableEmpty filter housing (fits standard size, third party filters: 12.5 mm OD and 9.0 mm ID)600 nm filter (10 nm FWHM) in filter housingUser manualReference ManualFlash Photolysis Spectrometer Software Download

Designed specifically for fluorescence measurement, this 10 x 10 mm cuvette is made of quartz and features four clear sides to enable crystal-clear transmission of light, even into the UV spectrum.

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