How to use infrared spectroscopy machine?
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11 Citations | Compared to other analytical methods, infrared spectroscopy is fast, non-destructive and low cost. |
| We conclude by presenting a simple experimental setup based on this mechanism for infrared spectroscopy that could become a cheap Fourier transform infrared accessory and an alternative ... | |
40 Citations | The present findings can be employed to improve the algorithms used in in vivo near infrared spectroscopy. |
21 Citations | Near infrared (NIR) spectroscopy is an excellent candidate for these applications, with minimal sample preparation for real-time decision-making. |
| These results demonstrate the efficiency of Fourier transform infrared spectroscopy for classification. | |
| Mid and near infrared spectroscopy can also be exploited in combination with discrete sampling. | |
127 Citations | To significantly extend the capabilities of both infrared spectroscopy and optical microscopy, we have developed a new infrared imaging system that completely integrates these two methods. |
| This should help the reader to evaluate whether a particular system is appropriate for study by infrared spectroscopy, and what specific advantages are gained when applying infrared techniques. |
Related Questions
How is FTIR spectroscopy helping in analysis for analytical chemistry?5 answersFTIR spectroscopy is helping in the analysis for analytical chemistry by providing a method to detect the presence of functional groups and molecules directly from a mixed solution of organic molecules. It is useful for monitoring chemical reactions and can accurately predict the concentration of components in these reactions. This is achieved by decomposing the spectrum into peaks with various widths using the wavelet transform and building a sparse linear regression model using the wavelet coefficients. The interpretation of the models is expected to reveal the relation of broad regions in spectra to the model prediction, making it useful for the interpretation of spectra. Additionally, FTIR spectroscopy has been used for the quantification of glucose transport in cell barrier models and for the study of solid-liquid interfaces of heterogeneous catalysts. It has also been applied for the rapid determination of Sudan dye in paprika powder, providing a low-cost alternative to liquid chromatography techniques. Furthermore, FTIR spectroscopy has been used for the structural analysis of RNA, including the analysis of helical parameters and noncanonical base pairing.
How can infrared spectroscopy be used to determine trans fatty acids?5 answersInfrared spectroscopy, specifically Fourier transform infrared (FTIR) spectroscopy, can be used to determine trans fatty acids (TFAs) in various food samples. FTIR spectroscopy offers a rapid and easy-to-use technique for evaluating and monitoring the quality parameters of fats and oils, including TFAs. It can analyze common intrinsic quality parameters such as peroxide value, free fatty acid, moisture, iodine value, and oxidation stability. FTIR-based analytical techniques have been developed for the classification and adulteration detection of fats and oils. The technique has been applied to determine TFAs in edible oils and oils/fat samples extracted from finished products, with good agreement with traditional methods such as gas chromatography. The use of attenuated total reflection (ATR) mode in FTIR spectroscopy has shown equivalent performance to benchtop FTIR spectrometers for the determination of total trans fat content in fats, oils, and lipids extracted from fast foods.
What is the use of infrared spectroscopy?5 answersInfrared spectroscopy is a technique used to identify and determine components in various organic or inorganic compounds. It is commonly used in qualitative and quantitative analyses, including the estimation of compounds through measuring the transmitted or absorption intensity of active groups. In the field of heterogeneous catalysis research and development, infrared spectroscopy is used for structural characterization, such as identifying surface metal-oxygen bonds and surface acid sites. Additionally, infrared spectroscopy can be used to automatically identify functional groups in molecules without the need for database searching or peak matching methods. The technique is also powerful for structural analysis, as it allows for the identification of functional groups in solids, liquids, or gases by analyzing obtained spectra. In the analysis of food toxins, infrared spectroscopy is a non-destructive and rapid method for the detection and characterization of contaminants in high throughput.
How can FTIR spectra be used to diagnostic cancer?5 answersFTIR spectra can be used for cancer diagnosis by analyzing the biochemical information and spectral changes in different types of cancer. Machine learning algorithms, such as K-nearest neighbor (KNN) and support vector machine (SVM), can be coupled with FTIR spectroscopy to accurately classify breast cancer subtypes. In the case of esophageal squamous cell carcinoma (ESCC), FTIR spectroscopy can differentiate late-stage cancer from healthy individuals with high accuracy, sensitivity, and specificity using serum or plasma samples. Hyperspectral images acquired through micro-FTIR spectroscopy can be modeled and analyzed using deep neural networks, achieving high accuracy in characterizing healthy, inflammatory, and tumor colon tissues. Attenuated total reflection-FTIR spectroscopy using blood samples has identified biomolecular markers and spectral changes for the precise diagnosis of lung cancers, with high classification accuracy using machine learning algorithms like partial least square discriminant analysis (PLS-DA) and back propagation (BP) neural network.
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