Lab Junior Educational UV-VIS Spectrometer

Transcription

1 Proudly serving laboratories worldwide since 1979 CALL for Refurbished & Certified Lab Equipment Lab Junior Educational UV-VIS Spectrometer K-MAC Lab Junior was developed for spectrum experiments for elementary and high school students. With Lab Junior, the experiments class is ready with out extra preparation. Light & optics education kit for students 3 modes in one system, Multi-use -Absorbance & Transmittance mode -Fluorescence & Reflectance mode -Irradiance Mode Easy to use Reasonable price & superior performance Compact & Versatile Selected as an official experiment kit of 38th International Chemistry Olympiad (2006)

2 Composition Lab Junior consists of Detector, Light Source, Sample Holder, Program software and other accessories. Item Description Item Detector SpectraView2100 SV2100L Software Visual Spectra 2.1jr Visual Spectra 2.1Jr Light Source Tungsten-Halogen Lamp TH2100L Sample Holder 3-Way CuvetteHolder CH2100LLight Lab Junior Kit Everything is ready to start the experiment in one kit: Detector, Light Source, Sample holder, Software and Accessories.

3 Accessories USB cable Driver CD Adaptor CuvetteCell Color Paper Box Reflection Color Paper Transmission Cellophane Paper LED light sources Grating Light source holder Hexagonal Wrench Transport case Manual System Mode Different Measurement Modes with Different Layouts : The layout is changed for different measurement functions.

4 Absorbance/Transmittance Mode The amount of absorbed or transmitted light through a sampleis analyzed and separated according to wavelength as spectrum. Fluorescence/Reflectance Mode The properties of a sample are analyzed by fluorescence or reflected light from using a detector. The light source and the detector are arranged at a right angle. Irradiance Mode A light source can be changed and the experiments on light sources and luminaries are possible in this mode.

5 Connection Easy connection to PC via USB 2.0 (USB 1.1 compatible) USB cable and Electrical cord enclosed Operating Program User-friendly interface with various colors and 3D pictures makes it easy and interesting for students to use the program.

6 Operate Absorbance, Transmittance, Reflectance and Irradiance with one program Lab Junior S/W composition

7 Hardware Operation Lab Junior Spectrum

8 Experiments with Lab Junior (I) Absorbance/Transmittance Experiment Student can study the properties of light and color with the experiment using a solution filled cuvette or cellophane paper. Absorbance/Transmittance Experiment Experiment example Observe how transmittance light and absorbance light are different as penetrating the light to color solution and discuss the principle how we can see colors by means

9 of the properties of light and color. Check and discuss the mixed ratio for each color of color solution and how the color of solution changes as adding different color. Study the photosynthesis and transmittance of chlorophyll extracted tobacco leaves and discuss the reaction between chlorophyll and light. Chemical experiments on determining the concentration of solution Experiments on the wavelength range of color Experiments on titration using acid-base indicator Experiments on the mixed ratio of solution Analysis experiments on the color and configuration of complex compound Experiments with Lab Junior (II) Reflectance/Fluorescence Experiment Students can study the properties of light and color with the experiment using a solution filled cuvette, reflective colored paper or gold color foil in reflectance/fluorescence mode(right angel arrangement) of Lab Junior.

10 Reflectance/Fluorescence Experiment Experiment example Observe how fluorescent ink emits the light in water the ink is dissolved and what substances emit light around us. Also discuss the process how the substances emit the light Reflect the light with colored paper, which doesn t transmit the light and observe how each color reflect the light. Discuss the principle how we can see colors as understanding the properties of light and color Observe how the reflectance is affected by surface roughness and discuss why the color we could see is changed by the roughness of surface. Determine the concentration of various fluorescent materials Experiments on comparing the roughness of reflective material surface Experiments on defining fluorescence material in mixed solution Experiments on determining the sedimentation of a solution. Experiments with Lab Junior (III) Irradiance Experiment Analysis the light of radiant substance and discuss how the properties of light are different for each light in irradiance mode of Lab Junior.

11 Irradiance Experiment Experiment example Study the differences between sunlight and artificial light and between a fluorescent lamp and an incandescent lamp. Also discuss how these differences affect our eyes. Analysis the differences of warm and cool colors and discuss the factor of these differences. Analysis the flame coloration as burning metal on an alcohol lamp and discuss the color of each element. Study wavelength positions by color using LED light source and discuss what LED light source is different from lamps with same color. Measure line spectrums and understand Fraunhofer lines with irradiance experiments using the detector and a hydrogen discharge tube. Experiments on irradiance and wavelength range of various light sources. Specification SYSTEM

12 Wavelength range Optical resolution Integration time Dimension 350~1080nm ~2.5 nm FWHM 1ms to 60 sec Detector 118(W)X98(L)X35(H)mm Light source 118(W)X98(L)X35(H)mm CuvetteHolder 95(W)X95(W)X52(H)mm LIGHT SOURCE Spectral range 400nm ~ 850 µm Power input 9V DC/500mA Color temp 2,800K Bulb Tungsten Halogen Bulb lifetime 1,500 hours Bulb output 70 Lumens Connector SMA 905 OPTICAL BENCH Optical entrance Input round Diameter: 0.5 mm NA = 0.22 mounted in SMA-coupling Slit Output linear 50 µm x 1000 µm (standard) (optical entrance) Grating Flat-field, 600 lines/mm (center) Blazed at 500 nm (350 ~1000 nm) Spectral Range 400 nm ~ 850 nm (Tungsten Halogen lamp) Resolution FWHM Wavelength Accuracy 2.3 ±0.2nm (standard slit) ±0.46 nm (standard slit)

13 Sensitivity Range : 0.0 ~ 3.0 Abs. 0.0 ~ 125 % Accuracy: < 1 % at 1 Abs. 4*10-3Abs Dark noise < 2 mabs. 30 counts/16383 counts Stray Light < 0.05% at 600 nm < 0.10% at 435 nm DETECTOR Producer Number of Pixels Maximum clock rate Current consumption Supply Voltage Integration time Sony CCD array 2048 elements 2 MHz 10 ma 5 V 1 ms~ 60 sec Effective Range 350~ 1080 nm Proudly serving laboratories worldwide since 1979 CALL for Refurbished & Certified Lab Equipment