Spectroscopy Lab Experiments – Quantification of Food Dyes in Sports Drinks

Apr 28, 2017 | News

Absorbance Spectroscopy and Sports Drinks How much food dye is present in sports drinks? This is the question you will answer in this laboratory experiment. You will use visible spectroscopy to determine the concentration of a food dye in a beverage of your choice....

What is a spectrometer Linearity?

Apr 25, 2017 | Detectors, Glossary of Spectroscopy Terms

Linearity is a property where the pixels in a detector have a linear relationship between the number of electrons generated and the voltage produced. It only happens for a certain range in the number of electrons. Above it, the pixel saturates and the voltage stops...

What is a Haze?

Apr 25, 2017 | Glossary of Spectroscopy Terms

The appearance of transparent materials can be tuned for their applications and can be quantified by their light scattering optical properties. The cloudiness or “haze” can be defined by the percentage of light transmission which deviates from an incident beam greater...

What is a Saturation?

Apr 25, 2017 | Detectors, Glossary of Spectroscopy Terms

Saturation is what happens when a pixel generates too many electrons. After a pixel exceeds its pixel well depth, the signal from the pixel stops increasing with more photons. The stored electrons can even start “leaking” into neighboring pixels and distorting the...

What is a Pixel?

Apr 25, 2017 | Detectors, Glossary of Spectroscopy Terms

A pixel, also called an element in PDAs, is an individual semiconductor in a larger array of many semiconductors used in electronic detectors such as CCDs and PDAs. When using detectors for 2D imaging, these semiconductors correspond directly to the pixels in the...