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Ultraviolet-Visible Spectrophotometry
2020Ultraviolet (UV) and visible spectrophotometry have been utilized in forensic toxicology for both qualitative and quantitative analysis. Lambert discovered that for monochromatic radiation, absorbance was directly proportional to the path length of the incident light through the material.
Barry S. Levine, Kenneth Cole
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Correlations in Ultraviolet Spectrophotometry
Applied Spectroscopy, 1957In the process of collecting a library of spectra of aromatic compounds for investigation of synthetic liquid fuels, various correlations have been observed. (1) Phenylnaphthalene-type spectra have been noted in related compounds, (2) spectra and structures of fluorene derivatives have been studied; (3) graphs of intensity as a function of wavelength ...
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Solvents for ultraviolet spectrophotometry
Talanta, 1959Abstract Mathematical relations are presented showing the effect of light absorption by the solvent on the absorption measurements. A simple modification in the silica-gel adsorption method of purifying iso octane is described that greatly improves the transmittance in the 2000 A region. A procedure of purifying dioxan is also included.
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[Determination of hexaazaisowurtzitane with ultraviolet spectrophotometry].
Zhonghua lao dong wei sheng zhi ye bing za zhi = Zhonghua laodong weisheng zhiyebing zazhi = Chinese journal of industrial hygiene and occupational diseases, 2006目的 建立作业场所空气中六硝基六氮异伍兹烷(CL-20)的测定方法.方法 空气中六硝基六氮杂戊异兹烷经滤料采集,甲醇洗脱,在波长226 nm处用紫外分光光度法定量.结果 CL-20在0.0～16.0μg/ml浓度范围内线性关系良好,相对标准偏差(RSD)低于7.02%,检出限为0.31μg/ml,最低检出浓度为0.010 mg/m3.加标回收率95.10%～108.25%,经中国疾病预防中心验证和实验室模拟试验证明,该方法可用于工作场所空气中CL-20的检测分析.结论 该方法操作简单,灵敏度和选择性高,准确度、精密度良好,易于推广使用。
Yan-Qi Wang +4 more
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Far Ultraviolet Solution Spectrophotometry
Applied Spectroscopy, 1973Techniques and apparatus for extending conventional solution absorption spectrophotometry into the far uv region are discussed. The principal difficulties of spectroscopy in this region are reviewed. Applications and examples are given in inorganic, organic, and biological chemistry.
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Homochromatic Spectrophotometry in the Extreme Ultraviolet
Journal of the Optical Society of America, 1930The d-log t curves of typical fast, medium, and slow emulsions when coated with oils fluorescing in the blue, near ultraviolet, and far ultraviolet respectively, have been studied in the region 900 to 5000 Angstroms by means of a vacuum spectrograph designed especially for photographic photometry, together with ordinary quartz spectrographs.
George R. Harrison, Philip A. Leighton
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Recent Advances in Ultraviolet-Visible Spectrophotometry
Critical Reviews in Analytical Chemistry, 1992Developments in UV/VIS spectrophotometry during the past decade are critically reviewed. Advances in instrumentation: sample handling, optical systems, detectors, and signal processing are discussed. The application of spectrophotometric detection in hydrodynamic systems is surveyed.
Lobinski, Ryszard, Marczenko, Z.
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Ultraviolet–Visible Spectrophotometry
2018UV–Vis spectrophotometry is routinely used in the quantitative chemical analysis of solutions. In this article, applications to solid-state spectroscopy are described. This method detects optical transmittance/reflectance, i.e., intensity ratios of the transmitted/reflected light from a sample to the incident monochromatic light in the visible and ...
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Quantitative Ultraviolet Vapor Spectrophotometry
Applied Spectroscopy, 1957Applications of quantitative ultraviolet vapor spectrophotometry are discussed. A micropipet-sintered disc sample introduction technique based on accurate volume measurements circumvents difficult measurement of low pressures. The method greatly facilitates determination of accurate absorption intensities and thus permits many applications of vapor ...
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