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Turbidity measures the degree of light is scattered by suspended particulate material and soluble colored compounds in the water.
Absorbance measures the amount of light absorbed by the constituents in the water with a specified wavelength.
Absorbance measures the amount of light absorbed by a sample, indicating the concentration of a specific substance. Turbidity measures the cloudiness or haziness of a liquid caused by suspended particles, which can scatter light passing through the sample. Absorbance is a quantitative measurement, while turbidity is a qualitative measurement.
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What is the difference between absorbance and transmittance?
Absorbance measures the amount of light absorbed by a sample, while transmittance measures the amount of light that passes through a sample. Absorbance is calculated as -log(T), where T is transmittance. Absorbance is commonly used in spectrophotometry to quantify the concentration of a substance in a solution.
What is the relationship between absorbance intensity of incident radiation and intensity of transmitted radiation?
The relationship between absorbance intensity of incident radiation and intensity of transmitted radiation is inverse. As absorbance increases, transmitted intensity decreases. This is due to the absorption of light energy by the material, leading to a reduction in the amount of light passing through it.
Why does a turbidity current move beneath the clear water that surrounds it?
A turbidity current is denser due to the sediment it carries, causing it to sink beneath the clearer, lighter water. This density difference results in the turbidity current flowing along the seafloor, transporting sediment and creating undersea canyons and deposits.
Why is a wavelength of 600NM used for turbiditimetry?
A wavelength of 600nm is commonly used for turbidimetry because it falls within the visible range of light and is less prone to interference from color or impurities in the sample. Additionally, 600nm is often near the absorbance peak for many turbid samples, providing optimal sensitivity for measuring turbidity.
What is the difference between colorimeter and turbidimeter?
A colorimeter measures the absorption of specific wavelengths of light to determine the concentration of a colored substance in a solution, while a turbidimeter measures the scattering of light by suspended particles in a liquid to determine the turbidity or cloudiness of the solution. Colorimeters are used for measuring color intensity, while turbidimeters are used for measuring suspended solids content.
Can a turbid sample be measured for absorbance in UV spectrophotometer?
Yes, turbidity can interfere with absorbance readings in a UV spectrophotometer by causing scattering of light. To accurately measure absorbance in a turbid sample, the turbidity would need to be reduced or removed before analysis, for example by centrifugation or filtration.
What type of instrument is available for measurement of bacterial growth on the basis of turbidity?
A spectrophotometer can be used to measure bacterial growth based on turbidity. It detects changes in light absorbance caused by the presence of bacteria in a liquid culture, with higher turbidity indicating more bacterial growth.
What is difference between specific absorbance and absorbance interms of spectroscopy?
specific absorbance- it is absorbance in a solution containing one gm of substance in 100 ml solvent in 1cm shell. so it is having a difference with absorbance which is negative logarithm of incident light to the transmitted light. divya.chakraborty@gmail.com
What is the difference between spectrophotometer and fluorimeter?
A spectrometer shoots light through a sample and detects absorbance while a fluorimeter detects the intensity of fluorescence of a given sample.
What is difference between suspended solid and turbidity?
Suspended solids are particles present in water that can settle out over time, while turbidity is a measure of the cloudiness or haziness of water due to particles in suspension. Suspended solids are the actual particles in the water, while turbidity is a measure of how those particles affect the clarity of the water.
What is the different between primary absorbance and secondary absorbance in fluorescence?
in primary light absorbed by outer molecule while in secondary re-absorbance occurs
What is the difference between absorbance and transmittance?
Absorbance measures the amount of light absorbed by a sample, while transmittance measures the amount of light that passes through a sample. Absorbance is calculated as -log(T), where T is transmittance. Absorbance is commonly used in spectrophotometry to quantify the concentration of a substance in a solution.
Is absorbance and OD the same thing or any difference?
Absorbance and optical density (OD) are often used interchangeably to describe the light absorbance properties of a substance. However, technically, absorbance refers to the logarithm of the ratio of the intensity of light incident on a material to the intensity transmitted through the material, while OD specifically refers to the absorbance measured in a spectrophotometer at a specific wavelength.
What is the relationship between absorbance and transmittance?
Absorbance = -log (percent transmittance/100)
Is wavelength or absorbance the dependent variable?
"absorbance"Since in the experiment, you probably choose the wavelength, then measure the absorbance (absorption?, the absorbance is the dependent variable.
What causes turbidity in lagoons What is the reliability of turbidity data?
turbidity is pollution, thus runoffs and fertilizer and anything that makes up pollution is turbidity.
What is the relationship between absorbance intensity of incident radiation and intensity of transmitted radiation?
The relationship between absorbance intensity of incident radiation and intensity of transmitted radiation is inverse. As absorbance increases, transmitted intensity decreases. This is due to the absorption of light energy by the material, leading to a reduction in the amount of light passing through it.
