ResourceSpectroscopy
Measurement of Quantitation Limits for Vitamin B<sub>12</sub> and Caffeine in Aqueous Solution Using UV-1800 UV-VIS Spectrophotometer
11 May 2014UV-VIS spectrophotometers are widely used for quantitation (measurement of concentration) of a substance in solution. This application note reports on the measurement of vitamin B12 and caffeine in aqueous solutions using the Shimadzu UV-1800 UV-VIS spectrophotometer to determine their respective quantitation limits.
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UV-Visible SpectroscopyUltraviolet-visible (UV-Vis) spectrophotometers are used to measure the interaction of UV and visible light with a sample, including transmission, reflectance & absorbance. The two major instrument classes are single-beam or double-beam spectrophotometers. More specialized equipment includes colorimeters, spectroradiometers and refractometers. Portable and microvolume spectrophotometers are also available. For the modular spectroscopy lab, explore a range of light sources for combination with a spectrograph/spectrometer and optics. Find the best UV-Vis spectroscopy products in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.VitaminsB VitaminsCaffeineFood FraudFood adulteration refers to food when it has been has been altered unlawfully with the addition of another lower commodity food product to increase quantity. The 2013 European horsemeat scandal saw the adulteration of beef products with the addition of horse meat.