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LAB spectrophotometry

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

factors affecting light source

Back (Answer)

range spectral distribution within the range source of radiant production stability of radiant energy temperature

#2
Front (Question)

two light sources

Back (Answer)

incandescent lamps LASER

#3
Front (Question)

most common light source for visible region and near infrared

Back (Answer)

tungsten lamp

#4
Front (Question)

two forms of tungsten lamps

Back (Answer)

tungsten iodide incandescent tungsten

#5
Front (Question)

inserted between lamp and sample for absorption of infrared radiation

Back (Answer)

heat absorbing filter

#6
Front (Question)

increases lifetime of tungsten lamp

Back (Answer)

iodine or bromine vapor

#7
Front (Question)

4 lamps used for measurement in the UV region

Back (Answer)

deuterium discharge lamp hydrogen lamp mercury-arc lamp xenon lamp

#8
Front (Question)

deuterium discharge lamps emit continuous spectra down to _____

Back (Answer)

165 nm

#9
Front (Question)

has less stable and shorter life that deuterium discharge

Back (Answer)

hydrogen lamp

#10
Front (Question)

three types of mercury arc lamp

Back (Answer)

low pressure mercury arc lamp medium pressure mercury arc lamp high pressure mercury arc lamp

#11
Front (Question)

emits a sharp line for UV and visible regions

Back (Answer)

low pressure mercury arc lamp

#12
Front (Question)

used for calibration purposes only

Back (Answer)

low pressure emrcury arc lamp

#13
Front (Question)

has a continuum from UV to mid visible region

Back (Answer)

medium and high pressure mercury arc lamp

#14
Front (Question)

meaning of LASER

Back (Answer)

light amplification by stimulated emission of radiation

#15
Front (Question)

laser characteristics

Back (Answer)

extremely intense focused non divergent light

#16
Front (Question)

wavelength of laser: argon fluoride

Back (Answer)

193 nm/ 248 nm

#17
Front (Question)

wavelength of laser: helium cadmium

Back (Answer)

325 nm / 442 nm

#18
Front (Question)

wavelength of laser: nitrogen

Back (Answer)

337 nm

#19
Front (Question)

wavelength of laser: argon blue

Back (Answer)

488 nm

#20
Front (Question)

wavelength of laser: argon (green)

Back (Answer)

514 nm

#21
Front (Question)

wavelength of laser: helium- neon (green)

Back (Answer)

543 nm

#22
Front (Question)

wavelength of laser: helium neon (red)

Back (Answer)

633 nm

#23
Front (Question)

minimizes and prevents entry of stray light into monochromator

Back (Answer)

entrance slit

#24
Front (Question)

isolates a specific wavelength of light

Back (Answer)

monochromator