Go Direct® Visible Spectrophotometer

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

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

Das Spektralphotometer Go Direct SpectroVis Plus misst schnell das gesamte Wellenlängenspektrum. Es verbindet sich drahtlos über Bluetooth® oder kabelgebunden über USB mit Ihrer Plattform. Bringen Sie Ihre Schüler in die Spektroskopie mit dem kostengünstigen Go Direct SpectroVis Plus Spektralfotometer ein. Dieses Gerät kann drahtlos oder per USB angeschlossen werden und kann problemlos das gesamte Wellenlängenspektrum (Absorption, prozentuale Übertragung oder Intensität) in weniger als einer Sekunde erfassen. Sobald die Spitzenwellenlänge bestimmt ist, können Sie die Konzentration einer Lösung bestimmen (Beer's Law) oder die Reaktionsraten überwachen. Ein niedriger Lichtweg ermöglicht den Einsatz des Go Direct SpectroVis Plus Spektrophotometers für Mikro- und Semi-Mikroküvetten in Mikro-Laboren und Biochemieanwendungen. Das Go Direct SpectroVis Plus Spektralphotometer kann in verschiedenen Spektroskopie-Experimenten eingesetzt werden: Bestimmung der Spitzenwellenlänge zur Erhebung von Daten über die Lösungskonzentration für Untersuchungen des Beer'schen Gesetzes oder zur Überwachung der Reaktionsraten. Erfassen Sie ein vollständiges Wellenlängenspektrum, um Absorption, Transmissionsgrad, Fluoreszenz (bei 405 nm oder 500 nm Anregung) oder Emissionen zu messen. Führen Sie Enzymkinetik-Experimente durch. Durchführung von Gleichgewichtsuntersuchungen von Absorption vs. Zeit oder Absorption vs. Konzentration. Führen Sie kolorimetrische oder fluoreszierende Bioassays durch. Verwenden Sie das Spektrophotometer Optical Fiber (VSP-FIBER) zur Messung von Emissionen aus Flammversuchen oder anderen Lichtquellen. Für eine genauere Emissionsanalyse verwenden Sie das Vernier-Emissionsspektrometer (VSP-EM). Spektroskopie mit Go Direct SpectroVis Plus Um das Spektralfotometer Go Direct SpectroVis Plus verwenden zu können, laden Sie die kostenlose Spektralanalyse-App herunter. Die App ist mit Computern, Chromebooks und Mobilgeräten kompatibel. Studierende können sich auch mit LabQuest 2 oder einem Computer mit Logger Pro verbinden, um Analysen durchzuführen. Spezifikationen Wellenlängenbereich: 380 nm–950 nm Unterstützung für Fluoreszenz: Zwei Anregungsquellen zentriert bei 405 nm und 500 nm Gemeldetes Wellenlängenintervall: ~1 nm zwischen gemeldeten Werten (erfasst 570 Werte) Abmessungen: 16 cm x 10 cm x 5 cm Lichtquellen: Weisse Glühlampe, ca. 8.000 Stunden Lebensdauer, Kalibrierung in einem Schritt. LED-basiert, ca. 100.000 Stunden Lebensdauer. Es wird keine externe Stromversorgung benötigt

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