ENHANCEMENT CLASS: SPECTROPHOTOMETRY

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Total cards: 14•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (14)

Front (Question)

Measurement of the intensity of light at selected wavelengths.

Back (Answer)

SPECTROPHOTOMETRY

Front (Question)

Is the distance between two peaks as the light travels in a wavelike manner

Back (Answer)

WAVELENGHT

Front (Question)

According to ________, the concentration of a substance is directly proportional to the amount of light absorbed or inversely proportional to the logarithm of the transmitted light.

Back (Answer)

Beer-lambert law

Front (Question)

Equation of Beer-lambert law:

Back (Answer)

A = ebc

Front (Question)

Is used to measure the light transmitted by a solution to determine the concentration of the light-absorbing substance in the solution.

Back (Answer)

SPECTROPHOTOMETER

Front (Question)

Light source

Back (Answer)

bulb

Front (Question)

Visible and near infrared region

Back (Answer)

Incandescent Tungsten/Tungsten iodide lamp

Front (Question)

Ultraviolet (UV)

Back (Answer)

Deuterium lamp Mercury-arc lamp Hydrogen lamp Xenon arc lamps

Front (Question)

• Isolates radiant energy (light) of a desired wavelength.

Back (Answer)

MONOCHROMATOR

#10

Front (Question)

MONOCHROMATOR Types

Back (Answer)

o Filters o Prism o Diffraction gratings

#11

Front (Question)

• A small vessel used to hold a liquid sample to be analyzed in the light path of a spectrometer • It may be round, square or rectangular.

Back (Answer)

SAMPE CELL (CUVET/CUVETTE)

#12

Front (Question)

SAMPE CELL (CUVET/CUVETTE) TYPES

Back (Answer)

o Glass o Silica (Quartz) o Plastic

#13

Front (Question)

A device that converts the transmitted radiant energy into an equivalent amount of electrical energy.

Back (Answer)

PHOTODETECTORS

#14

Front (Question)

PHOTODETECTORS TYPES

Back (Answer)

➢ Photocell ➢ Phototube ➢ Photomultiplier - Most commonly used