Spectroscopy is a fundamental analytical tool utilized throughout all of the sciences. For chemistry and biology alone, there are thousands of applications. In the past two decades there have been monumental advances in the miniaturization of components used in spectrophotometric systems. The key components include detector arrays, laser diodes, and fiber optics. Currently, there are numerous commercially available miniature spectrometer systems as well as discrete components that are used by researchers in designing their own systems. A comprehensive summary of current instrumentation available for the design and development of miniaturized spectroscopy applications is described, including detectors, wavelength discriminating components, light sources, and sampling assemblies. Recommendations are made for designing spectrometer systems for specific applications. Current literature is reviewed for chemical and biological applications specifically using miniaturized spectrometer systems with the focus being on ultraviolet-visible-near-infrared spectrometers. The applications include laboratory applications, environmental sensing, on-site industrial analyses, botany and ecology applications, and finally clinical and biochemical studies. Additionally, microspectrometers, two-dimensional arrays, and photonics crystals are discussed in regards to their future role in chemistry and biology applications.

Miniature spectroscopic instrumentation: Applications to biology and chemistry

Articles about the development of derivative spectrophotometric methods and analytical applications of derivative spectrophotometry (DS) published in the last nine years (since 1994) are reviewed.

https://www.jstage.jst.go.jp/article/analsci/21/6/21_6_595/_pdf

Recent developments of derivative spectrophotometry and their analytical applications.

Spectrophotometry is more and more often the method of choice not only in analysis of (bio)chemical substances, but also in the identification of physical properties of various objects and their classification. The applications of spectrophotometry include such diversified tasks as monitoring of optical telecommunications links, assessment of eating quality of food, forensic classification of papers, biometric identification of individuals, detection of insect infestation of seeds and classification of textiles. In all those applications, large numbers of data, generated by spectrophotometers, are processed by various digital means in order to extract measurement information. The main objective of this paper is to review the state-of-the-art methodology for digital signal processing (DSP) when applied to data provided by spectrophotometric transducers and spectrophotometers. First, a general methodology of DSP applications in spectrophotometry, based on DSP-oriented models of spectrophotometric data, is outlined. Then, the most important classes of DSP methods for processing spectrophotometric data—the methods for DSP-aided calibration of spectrophotometric instrumentation, the methods for the estimation of spectra on the basis of spectrophotometric data, the methods for the estimation of spectrum-related measurands on the basis of spectrophotometric data—are presented. Finally, the methods for preprocessing and postprocessing of spectrophotometric data are overviewed. Throughout the review, the applications of DSP are illustrated with numerous examples related to broadly understood spectrophotometry.

http://iopscience.iop.org/article/10.1088/0957-0233/17/9/R01/pdf

Spectrophotometric applications of digital signal processing

Kinetic spectrophotometric method for simultaneous determination of selenium and tellurium using partial least squares calibration

The extraction of creatinine from a physiological medium by a microporous solid and its quantification by diffuse reflectance UV spectroscopy

Ultraviolet and Absorption Light Spectrometry

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Ultraviolet and Absorption Light Spectrometry

Ultraviolet and Absorption Light Spectrometry