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picture1_Spectrophotometry Slideshare 66795 | Ppt Chapter5


picture2_Spectrophotometry Slideshare 66795 | Ppt Chapter5 picture3_Spectrophotometry Slideshare 66795 | Ppt Chapter5

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File: Spectrophotometry Slideshare 66795 | Ppt Chapter5
Spectrophotometry and Photometry Spectrophotometry and Photometry • Photometric instruments measure light intensity without consideration of wavelength. – Most instruments use filters (photometers), prisms, or gratings (spectrometers) to select (isolate) a ...

icon picture PPTX Filetype Power Point PPTX | Posted on 27 Aug 2022 | 2 years ago
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...Spectrophotometry and photometry photometric instruments measure light intensity without consideration of wavelength most use filters photometers prisms or gratings spectrometers to select isolate a narrow range incident beer law concentration substance is directly proportional right amount absorbed inversely logarithm transmitted spectrophotometric by solution determine absorbing in copyright wolters kluwer all rights reserved cont components spectrophotometer source monochromators sample cell photodetectors quality assurance accuracy stray linearity single beam see figure atomic absorption measures detecting electromagnetic radiation atoms rather than molecules sensitive precise routinely used trace metals that are not easily excited flame emitted was na k li no longer replaced ion selective electrodes fluorometry basic instrumentation concentrations solutions contain fluorescing emits short high energy excitation mechanical attenuator controls advantages disadvantage greater specifi...
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