Applications of Handheld Near‐Infrared Spectrometers

Yan, Hui; Siesler, Heinz W.

doi:10.1002/9781119636489.ch35

Cited by 8 publications

(5 citation statements)

References 33 publications

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“…Fixed position MIR gave the most accurate results, but the portable Vis-NIR device was the most cost-effective for the field-scale use. Portable NIR spectrometers currently cost in the range of a few thousand euros in terms of hardware, but still face maturity issues especially when used by non-experts [51].…”

Section: Spectroscopymentioning

confidence: 99%

Carbon Farming: Bridging Technology Development with Policy Goals

Kyriakarakos,

Petropoulos,

Marinoudi

et al. 2024

Sustainability

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This paper conducts an in-depth exploration of carbon farming at the confluence of advanced technology and EU policy, particularly within the context of the European Green Deal. Emphasizing technologies at technology readiness levels (TRL) 6–9, the study critically analyzes and synthesizes their practical implementation potential in the agricultural sector. Methodologically, the paper integrates a review of current technologies with an analysis of EU policy frameworks, focusing on the practical application of these technologies in alignment with policy directives. The results demonstrate a symbiotic relationship between emerging carbon farming technologies and evolving EU policies, highlighting how technological advancements can be effectively integrated within existing and proposed legal structures. This alignment is crucial for fostering practical, market-ready, and sustainable agricultural practices. Significantly, this study underscores the importance of bridging theoretical research with commercialization. It proposes a pathway for transitioning current research insights into innovative, market-responsive products, thereby contributing to sustainable agricultural practices. This approach not only aligns with the European Green Deal but also addresses market demands and environmental policy evolution. In conclusion, the paper serves as a critical link between theoretical advancements and practical applications in sustainable carbon farming. It offers a comprehensive understanding of both the technological and policy landscapes, aiming to propel practical, sustainable solutions in step with dynamic environmental policy goals.

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Section: Spectroscopymentioning

confidence: 99%

Carbon Farming: Bridging Technology Development with Policy Goals

Kyriakarakos,

Petropoulos,

Marinoudi

et al. 2024

Sustainability

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“…Similarly, portable and handheld spectrometers are being developed for on-site analysis in applications ranging from food safety to forensic analysis. [6][7][8][9][10] Overall, the development of compact spectral sensors is driven by the demand for portable, cost-effective, and high-performance spectroscopic solutions across a wide range of industries. Continued advancements in technology are expected to further enhance the capabilities of these sensors and open up new opportunities for their use in diverse applications.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of compact spectroscopic sensors in the NIR wavelength range for quality control and material analysis

Arnold,

De Biasio,

Oliveira

2024

Next-Generation Spectroscopic Technologies XVI

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Spectral sensing technology has rapidly evolved in recent years, with compact spectral sensors emerging as powerful tools for quality control and material analysis across diverse industrial and scientific domains. Compact spectral sensors offer significant advantages in terms of size, affordability, and versatility, making them an attractive choice for quality control and material analysis tasks. The state-of-the-art spectral sensors evaluated in this paper are sensors from Senorics (1200-1700nm, 16 channel) and from AMS (750-1050nm, 61 channel). The strengths and limitations of each sensor are evaluated, providing valuable insights for end-users, researchers, and engineers seeking to select the most suitable sensor for their specific application. Quality control and material analysis applications are the focus of this evaluation. This research underscores the key strengths and limitations of compact spectral sensors, and the potential for data fusion techniques to further enhance their capabilities. It highlights the role of these sensors in transforming quality control processes, enabling rapid and non-destructive material analysis, and ensuring compliance with stringent industry standards. The findings presented in this paper offer researchers, engineers, and practitioners a deeper understanding of the potential of the selected sensors across a range of applications. As we continue to harness these sensors for quality control and material analysis, we are on the path to achieving more efficient, reliable, and sustainable processes in a variety of industries.

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“…Due to the high price (>$50,000) and weight (up to 5 kg) of handheld MIR instruments and the narrow wavelength/wavenumber range of previous generations of handheld NIR spectrometers, 20 their dissemination was slow and limited to only a few specific user groups. With the recent development of lightweight (<500 g) and more cost-effective (<$10,000) handheld NIR spectrometers 21 that are optimized for practicality and have greater flexibility in installation, on-site measurements for various analytes using this technique have become very popular. However, the feasibility of the technique has not yet been demonstrated for quantifying the hydrocarbon content in soils.…”

Section: Introductionmentioning

confidence: 99%

Rapid Determination of the Total Petroleum Hydrocarbon Content of Soils by Handheld Fourier Transform Near-Infrared Spectroscopy

et al. 2023

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For successful soil remediation and hydrocarbon exploration operations, determining the total petroleum hydrocarbon (TPH) content of soils is an indispensable process step. This paper reports on the performance of a handheld Fourier transform near-infrared (FT-NIR) spectrometer for rapid and quantitative determination of TPH content of soils from two different sites by diffuse reflection measurements. For rapid decisions for exploration work or environmental site assessment projects, a quickpreferably on-sitedetermination of TPH content is valuable. Diffuse reflection NIR spectra were recorded from soil samples of two different sites with TPH reference values ranging from 350 to 30,000 ppm, as determined by capillary gas chromatography and flame ionization detection with hydrocarbon fingerprinting C1–C44. However, this paper not only addresses the development of site-specific partial-least squares (PLS) calibrations but also demonstrates the locally-weighted PLS (LW-PLS) technique, which can be used to develop global, site-independent PLS calibrations without significant penalty in calibration performance. As a first step, the diffuse reflection spectra were used to develop conservative, site-specific PLS calibration models with root-mean-square calibration/cross-validation errors (RMSEC/RMSECV) of 1043/1106 and 741/785 ppm TPH, respectively, and the average absolute prediction errors for samples not contained in the calibration set were 451 and 293 ppm for the two sites, respectively. In a further step, significant degradation of the RMSE values of a conservative PLS model based on the NIR spectra of both sites was then compared to the application of the LW-PLS method, with only a slight loss of the prediction accuracy relative to the site-independent models. This study confirms the ability of next-generation portable FT-NIR spectrometers to predict low TPH levels in various soil types through bothsoil-specific and site-independentcalibrations, giving these spectrometers the potential to become rapid screening tools in the field.

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Applications of Handheld Near‐Infrared Spectrometers

Cited by 8 publications

References 33 publications

Carbon Farming: Bridging Technology Development with Policy Goals

Carbon Farming: Bridging Technology Development with Policy Goals

Evaluation of compact spectroscopic sensors in the NIR wavelength range for quality control and material analysis

Rapid Determination of the Total Petroleum Hydrocarbon Content of Soils by Handheld Fourier Transform Near-Infrared Spectroscopy

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