Online inspection of poultry carcasses using a visible/near-infrared spectrophotometer

1999 ◽  
Author(s):  
Yud-Ren Chen ◽  
William R. Hruschka ◽  
Howard Early
Keyword(s):  
Near Infrared ◽  
Infrared Spectrophotometer ◽  
Online Inspection

Evaluation of a low-cost portable near-infrared spectrophotometer for in situ cocaine profiling

Talanta ◽  
2019 ◽  
Vol 200 ◽  
pp. 553-561 ◽  
Author(s):  
Maria C. Hespanhol ◽  
Celio Pasquini ◽  
Adriano O. Maldaner
Keyword(s):  
Near Infrared ◽  
Low Cost ◽  
Infrared Spectrophotometer

A Photodiode-Array-Based Near-Infrared Spectrophotometer for the 600–1100 nm Wavelength Region

1989 ◽  
Vol 43 (1) ◽  
pp. 27-32 ◽  
Author(s):  
David M. Mayes ◽  
James B. Callis
Keyword(s):  
Spectral Resolution ◽  
Near Infrared ◽  
Dynamic Range ◽  
Wavelength Region ◽  
Stray Light ◽  
Silicon Photodiode ◽  
Baseline Noise ◽  
Array Detectors ◽  
Infrared Spectrophotometer ◽  
Photodiode Array

We describe a silicon photodiode-array (PDA)-based near-infrared spectrophotometer for making molecular absorption/diffuse reflectance measurements in the 600–1100 nm wavelength range. Absorptions in this spectral region arise from both low-lying electronic states and vibrational overtones of CH, NH, and OH functional groups and combination bands. One disadvantage of silicon-based array detectors is their decreasing quantum efficiency at wavelengths longer than 950 nm. For transmission measurements, this can be compensated for by the technique of spectral plane masking, which markedly improves the consistency and overall level of baseline noise as well as the dynamic range. The instrument's performance is evaluated in the areas of spectral resolution, baseline noise, stray light, and dynamic range, and a comparison is made with a state-of-the-art mechanically scanned instrument. In the study, the PDA spectrometer attained a signal-to-noise ratio two times better than that of the commercial instrument with a time efficiency advantage of twelve, while achieving a spectral resolution three times greater. Finally, the application of analyzing caustic brine solutions by rapid-scanning NIR spectroscopy is illustrated.

Myoglobin saturation in free-diving Weddell seals

1995 ◽  
Vol 79 (4) ◽  
pp. 1148-1155 ◽  
Author(s):  
G. P. Guyton ◽  
K. S. Stanek ◽  
R. C. Schneider ◽  
P. W. Hochachka ◽  
W. E. Hurford ◽  
...  
Keyword(s):  
Heart Rate ◽  
Latissimus Dorsi ◽  
Near Infrared ◽  
Lactate Production ◽  
Diving Response ◽  
Subadult Male ◽  
Dual Wavelength Laser ◽  
Normal Field ◽  
Weddell Seals ◽  
Infrared Spectrophotometer

Although the consumption of myoglobin-bound O2 (MbO2) stores in seal muscles has been demonstrated in seal muscles during laboratory simulations of diving, this may not be a feature of normal field diving in which measurements of heart rate and lactate production show marked differences from the profound diving response induced by forced immersion. To evaluate the consumption of muscle MbO2 stores during unrestrained diving, we developed a submersible dual-wavelength laser near-infrared spectrophotometer capable of measuring MbO2 saturation in swimming muscle. The probe was implanted on the surface of the latissimus dorsi of five subadult male Weddell seals (Leptonychotes weddelli) released into a captive breathing hole near Ross Island, Antarctica. Four seals had a monotonic decline of muscle O2 saturation during free diving to depths up to 300 m with median slopes of -5.12 +/- 4.37 and -2.54 +/- 1.95%/min for dives lasting < 17 and > 17 min, respectively. There was no correlation between the power consumed by swimming and the desaturation rate. Two seals had occasional partial muscle resaturations late in dives, indicating transfer of O2 from circulating blood to muscle myoglobin. Weddell seals partially consume their MbO2 stores during unrestrained free diving.

Herbal-Loaded Multifunctional Nanocomposities as Nanocarrier for Cancer Therpy: Synthesis and Quality

2011 ◽  
Vol 311-313 ◽  
pp. 1625-1629 ◽  
Author(s):  
Chih Wei Chou ◽  
Sheng Yueh Chang ◽  
Yung Shiu Chen ◽  
Wu Chung Su ◽  
Te Hsing Wu
Keyword(s):  
Electron Microscope ◽  
Near Infrared ◽  
Colon Adenocarcinoma ◽  
Ultra Violet ◽  
Human Colon ◽  
Size Analysis ◽  
Transmission Electron ◽  
Infrared Spectrophotometer ◽  
Ft Ir ◽  
Human Colon Adenocarcinoma

The multifunctional nanocompoties (MFNCs) as drug release carriers are prepared by cross-linking reaction of cationic chitosan (CS) and anionic tripolyphosphate (TPP) to encapsulate Fe3O4 nanoparticles(NPs) loaded cancer therapeutic agents such as berberine (BB), KCY-24B, KCY-Tai…etc were studied. These MFNCs were characterized by fourier transform infrared spectrophotometer (FT-IR), ultra violet–visible-near infrared spectrophotometer (UV-VIS-NIR spectrophotometer), size analysis, transmission electron microscope (TEM) and field-emission scanning electron microscope (FESEM). Then we obtained here the preparation method, characterization, and capability of these efficative nanoparticles. Cell celluar uptake and distribution of MFNCs were also inspected in human colon adenocarcinoma cell lines (Colo 205).

scholarly journals Non-Destructive Determination of Quality Traits of Cashew Apples (Anacardium Occidentale, L.) Using a Portable near Infrared Spectrophotometer

2016 ◽  
Vol 24 (1) ◽  
pp. 77-82 ◽  
Author(s):  
Lívia Paulia Dias Ribeiro ◽  
Ana Priscila Monteiro da Silva ◽  
Aliny Alencar de Lima ◽  
Ebenézer de Oliveira Silva ◽  
Åsmund Rinnan ◽  
...  
Keyword(s):  
Near Infrared ◽  
Anacardium Occidentale ◽  
Quality Traits ◽  
Infrared Spectrophotometer ◽  
Non Destructive

Study on the Preparation, Property and Drug Release Carrier of Chitosan-Based Nanoparticles for Cancer Treatment

2011 ◽  
Vol 284-286 ◽  
pp. 1800-1803
Author(s):  
Chih Wei Chou ◽  
Yueh Hsiung Kuo ◽  
You Cheng Hseu ◽  
Yung Shiu Chen ◽  
Te Hsing Wu
Keyword(s):  
Electron Microscope ◽  
Near Infrared ◽  
Ultra Violet ◽  
Drug Carriers ◽  
Therapeutic Agents ◽  
Synthetic Method ◽  
Grafting Reaction ◽  
Transmission Electron ◽  
Infrared Spectrophotometer ◽  
Ft Ir

In this paper, the effective nanocompoties (EFNCs) as drug carriers are prepared by grafting reaction of cationic chitosan (CS) and anionic tripolyphosphate (TPP) to encapsulate cancer therapeutic agents such as berberine (BB), KCY-24B…etc. These EFNCs were featured by ultra violet–visible-near infrared spectrophotometer (UV-VIS-NIR spectrophotometer), fourier transform infrared spectrophotometer (FT-IR), zetasizer, transmission electron microscope (TEM) and field-emission scanning electron microscope (FESEM). So we can obtain here the synthetic method, characterization, and functionality of these effective nanoparticles.

Rapid non-destructive determination of fat content in frozen skipjack using a portable near infrared spectrophotometer

2003 ◽  
Vol 69 (4) ◽  
pp. 856-860 ◽  
Author(s):  
Junji SHIMAMOTO ◽  
Seiichi HIRATSUKA ◽  
Kaoru HASEGAWA ◽  
Minoru SATO ◽  
Sumio KAWANO
Keyword(s):  
Near Infrared ◽  
Fat Content ◽  
Infrared Spectrophotometer ◽  
Non Destructive

scholarly journals Rapid Quality Control of Woodchip Parameters Using a Hand-Held Near Infrared Spectrophotometer

Processes ◽  
2020 ◽  
Vol 8 (11) ◽  
pp. 1413
Author(s):  
Elena Leoni ◽  
Manuela Mancini ◽  
Daniele Duca ◽  
Giuseppe Toscano
Keyword(s):  
Near Infrared ◽  
Prediction Models ◽  
Nir Spectroscopy ◽  
Calorific Value ◽  
Industrial Applications ◽  
Suitable Alternative ◽  
Real Time Analysis ◽  
Solid Biofuels ◽  
Solid Biofuel ◽  
Infrared Spectrophotometer

Near infrared spectroscopy is a non-invasive and rapid technique to support the analysis of solid biofuels such as woodchip, which is considered as a suitable alternative for energy production, according to European goals for fossil fuel reduction. Chemical and physical properties of the woodchip influence combustion performance, so the most discriminant parameters such as moisture and ash content and gross calorific value were constantly monitored. The aim of this study was the development of prediction models for these three parameters with the use of a hand-held NIR spectrometer. Laboratory analyses were carried out to evaluate the quality of several Italian samples from a power plant, and PLS regression models were developed to test prediction accuracy. Moreover, the most relevant wavelengths were investigated to discriminate chemical compounds influence. Prediction models demonstrated the capacity of handheld MicroNIR instrument to be considered a practical tool for solid biofuel quality assessment. As a consequence, NIR spectroscopy improved real-time analysis and made it suitable for practical and industrial applications, as supported by the recent Italian standard UNI/TS 11765.

Evaluation of a handheld near-infrared spectrophotometer for quantitative determination of two APIs in a solid pharmaceutical preparation

2019 ◽  
Vol 11 (3) ◽  
pp. 327-335 ◽  
Author(s):  
J. Puig-Bertotto ◽  
J. Coello ◽  
S. Maspoch
Keyword(s):  
Quantitative Determination ◽  
Near Infrared ◽  
Pharmaceutical Preparation ◽  
Infrared Spectrophotometer

The aim of this study is to evaluate the performance of a handheld NIR spectrophotometer for the quantitative determination of two APIs in a solid pharmaceutical preparation (tablet).

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