| 31. | Beckman had continued to develop the infrared spectrophotometer after the release of the IR-1.
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| 32. | An absorption spectrophotometer measures the absorption of light by a sample as a function of wavelength.
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| 33. | Initially the medical spectrophotometer had a mask-style attachment, into which the patient breathed.
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| 34. | Beckman Instruments shipped the first 1R-1 spectrophotometer to Shell on September 18, 1942.
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| 35. | Then, using a spectrophotometer, they were able to measure the light absorbance of the pigments.
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| 36. | Around the same time Hewlett Packard added an in-line spectrophotometer to their HP 2100 printer.
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| 37. | Years later Epson added an in-line spectrophotometer to their Stylus 7900 / 9900 printer line.
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| 38. | UV-visible microspectrophotometers consist of a UV-visible microscope integrated with a UV-visible spectrophotometer.
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| 39. | The DU spectrophotometer was also an important tool for scientists studying and producing the new wonder drug penicillin.
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| 40. | Additionally, most modern mid-infrared spectrophotometers use a Fourier transform technique to acquire the spectral information.
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