Go Direct® Emissions Spectrometer

Lo spettrofotometro Go Direct SpectroVis Plus misura rapidamente l'intera lunghezza d'onda. Si collega direttamente alla piattaforma in modalità wireless tramite Bluetooth® o cablato via USB. Introducete i vostri studenti alla spettroscopia con l'economico spettrofotometro Go Direct SpectroVis Plus. In grado di collegarsi wireless o via USB, questo dispositivo può facilmente raccogliere l'intera lunghezza d'onda (assorbanza, trasmissione percentuale o intensità) in meno di un secondo. Una volta determinata la lunghezza d'onda di picco, è possibile stabilire la concentrazione di una soluzione (legge di Beer) o monitorare la velocità di reazione. Un percorso luminoso ridotto consente allo spettrofotometro Go Direct SpectroVis Plus di essere utilizzato per microlaboratori e applicazioni biochimiche con micro e semi-micro cuvette. Lo spettrofotometro Go Direct SpectroVis Plus può essere utilizzato in diversi esperimenti di spettroscopia: Determinare la lunghezza d'onda del picco per raccogliere dati sulla concentrazione della soluzione per studi sulla legge di Beer o per monitorare le velocità di reazione. Raccogliere uno spettro a lunghezza d'onda completa per misurare l'assorbanza, la trasmittanza percentuale, la fluorescenza (a 405 nm o 500 nm di eccitazione) o le emissioni. Condurre esperimenti di cinetica enzimatica. Effettuare studi sull'equilibrio di assorbanza vs tempo o assorbanza vs concentrazione. Effettuare biotest colorimetrici o fluorescenti. Utilizzate lo spettrofotometro a fibra ottica (VSP-FIBER) per misurare le emissioni provenienti da prove alla fiamma o da altre sorgenti luminose. Per un'analisi più dettagliata delle emissioni, prendete in considerazione lo spettrometro Vernier Emissions (VSP-EM). Spettroscopia con Go Direct SpectroVis Plus Per utilizzare lo spettrofotometro Go Direct SpectroVis Plus, scarica l'app gratuita Spectral Analysis. L'app è compatibile con computer, Chromebook e dispositivi mobili. Gli studenti possono anche collegarsi a LabQuest 2 o a un computer con Logger Pro per effettuare analisi. Specifiche Intervallo di lunghezze d'onda: 380 nm–950 nm Supporto per fluorescenza: due sorgenti di eccitazione centrate a 405 nm e 500 nm Intervallo di lunghezza d'onda riportato: ~1 nm tra i valori riportati (raccoglie 570 valori) Dimensioni: 16 cm x 10 cm x 5 cm Sorgenti luminose: Lampadina bianca a incandescenza, durata di circa 8.000 ore, calibrazione in un solo passaggio. Basato su LED, durata di circa 100.000 ore. Nessuna alimentazione esterna è richiesta.

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  

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

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