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spectrophotometer

spectrophotometer

1 9.9
A machine that measures how much light of different colors a substance absorbs to help know what it is
  • noun
  • /ˌspɛktrəfoʊˈtɑːmɪtər/
  • Specialized
translation icon : espectrofotómetro
  • The Perkin-Elmer Model 5100 Atomic Absorption Spectrophotometer was operated in accordance with the manufacturer's instructions.
  • Atomic Spectrophotometer
  • Absorption Spectrophotometer
  • UV spectrophotometer

Examples

  • The 260 nm and 280 nm absorbance reading of total RNA was performed using a Nanodrop spectrophotometer (Thermo Scientific, Waltham, MA, USA).

    Academic text (2012)
  • The removal of dyes was determined by absorbance measurements using a UV-Vis spectrophotometer (Schimadzu, Japan) before and after the treatment of wastewater samples.

    Academic text (2015)
  • The anthocyanin assay, known as a "pH differential method," requires a spectrophotometer, a commonly used laboratory instrument.

    Academic text (2006)
  • Nitrate and nitrites were determined using a DR/4000 UV-Vis spectrophotometer.

    Academic text (2010)
  • The UV-vis absorption spectra were recorded on an Agilent Cary 500 spectrophotometer.

    Academic text (2018)
  • We measured haemoglobin in the study clinic with a portable spectrophotometer (HemoCue, Anglholm, Sweden).

    Academic text (2002)
  • Concentration was assessed with an IMV Micro-Reader I spectrophotometer (IMV International, Inc., Paris, FR).

    Academic text (2015)
  • Then the absorbance of the supernatant at 450 nm was detected using a spectrophotometer (Thermo).

    Academic text (2018)
  • The absorbance measurements were taken on a 96-well plate spectrophotometer (Synergy HT, Biotek).

    Blog text (18)
  • The researchers used a spectrophotometer to measure the light absorption of various chemical solutions.

Synonyms

spectrometer
vsspectrophotometer
  • Specialized
13 7.2

A machine that measures light or separates charged particles to identify substances

limits use to comparing intensity of light for substance analysis
spectrograph
vsspectrophotometer
  • Specialized
4 8.9

A machine that records the different colours of light from something for scientific study

emphasizes measuring and comparing intensity rather than imaging
spectroradiometer
vsspectrophotometer
  • Specialized
9.9

A device that measures how much light there is at each color

focuses on comparing intensities to analyze substance properties

How Precise

spectrometer
  • Specialized
13 7.2
spectroradiometer
  • Specialized
9.9
spectrophotometer
  • Specialized
1 9.9
spectroscope
  • Specialized
1 8.4
colorimeter
  • Specialized
7.8
photometer
  • Specialized
1 8.6

Surface Forms

Morphology

spectrophotometer = photometer (semi-transparent) = spectro + photo + meter

The immediate recognizable base is photometer, with spectro- adding the sense of measurement across a spectrum, but the term remains technical for most B1 learners.

Etymology

Spectrophotometer breaks into spectro- (like spectrum, a range of colors or light), photo- ('light'), and -meter ('measure'). So it is a device that measures the strength of different parts of the light spectrum to help identify what a substance is made of.