What is the device used to measure percent light absorption in pigments?

In summary, a spectrophotometer is a device used to measure the percent light absorption in pigments. It works by shining a beam of light through a sample and measuring the amount of light that is transmitted or absorbed. This measurement can be used for all types of pigments as long as they can be dissolved or suspended in a liquid solution. The difference between absorbance and percent light absorption is that absorbance measures the amount of light absorbed by a sample, while percent light absorption measures the percentage of light absorbed compared to the total amount of light shone on it. However, factors such as sample preparation, wavelength of light used, and instrument calibration can affect the accuracy of a spectrophotometer measurement, but these errors can be minimized
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What is the device used to measure percent light absorption in pigments?

I remember finding the percent light absorption in the pigments of some vegetables for a high school bio lab. I am pretty sure the device used was not specific for pigments. The device was user friendly- we just stuck some tubes in a magical box and the box displayed a number.
 
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http://dl.clackamas.edu/ch105-04/spec20.htm" is just such a magic box...
 
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FAQ: What is the device used to measure percent light absorption in pigments?

1. What is the device used to measure percent light absorption in pigments?

The device used to measure percent light absorption in pigments is called a spectrophotometer.

2. How does a spectrophotometer measure light absorption?

A spectrophotometer measures light absorption by shining a beam of light through a sample and measuring the amount of light that is transmitted or absorbed by the sample.

3. Can a spectrophotometer be used for all types of pigments?

Yes, a spectrophotometer can be used for all types of pigments as long as the pigment can be dissolved or suspended in a liquid solution.

4. What is the difference between absorbance and percent light absorption?

Absorbance is a measure of the amount of light absorbed by a sample, while percent light absorption is a measure of the percentage of light absorbed by a sample compared to the total amount of light shone on it.

5. Are there any factors that can affect the accuracy of a spectrophotometer measurement?

Yes, factors such as sample preparation, wavelength of light used, and instrument calibration can affect the accuracy of a spectrophotometer measurement. Proper technique and regular maintenance can help minimize these errors.

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