Identification of pesticide residues in lettuce leaves based on near infrared transmission spectroscopy

2018 ◽  
Vol 41 (6) ◽  
pp. e12816 ◽  
Author(s):  
Jun Sun ◽  
Xiao Ge ◽  
Xiaohong Wu ◽  
Chunxia Dai ◽  
Ning Yang
Keyword(s):  
Pesticide Residues ◽  
Near Infrared ◽  
Infrared Transmission ◽  
Transmission Spectroscopy

scholarly journals Estimation of composition of quinoa ( Chenopodium quinoa Willd.) grains by Near-Infrared Transmission spectroscopy

LWT ◽  
2017 ◽  
Vol 79 ◽  
pp. 126-134 ◽  
Author(s):  
Christian Encina-Zelada ◽  
Vasco Cadavez ◽  
Jorge Pereda ◽  
Luz Gómez-Pando ◽  
Bettit Salvá-Ruíz ◽  
...  
Keyword(s):  
Near Infrared ◽  
Chenopodium Quinoa ◽  
Infrared Transmission ◽  
Transmission Spectroscopy

Application of near Infrared Transmission Spectroscopy for the Determination of Some Quality Parameters of Apples

1994 ◽  
Vol 2 (4) ◽  
pp. 213-221 ◽  
Author(s):  
T. Lovász ◽  
P. Merész ◽  
A. Salgó
Keyword(s):  
Dry Matter ◽  
Near Infrared ◽  
Matter Content ◽  
Dry Matter Content ◽  
Quality Factors ◽  
Infrared Transmission ◽  
Transmission Method ◽  
Titratable Acid ◽  
Transmission Spectroscopy ◽  
Relative Standard

The acceptability of near infrared (NIR) transmission spectroscopy for the prediction of six quality factors of apples (firmness, refractive index, pH, titratable acid, dry matter and alcohol insoluble solids content) was investigated. The effects of storage conditions, cultivars and season on the accuracy of the NIR transmission method were also studied during the experiment. The accuracy of the calibration of all investigated parameters decreased during storage. The alteration of the characteristics of the spectra is possibly due to changes in the chemical composition and structure of apples between September and April. The calibration method was improved by developing a separate calibration for each cultivar per year. The calibrations of the different parameters are season-dependent except for the dry matter content. Using outlier diagnostics, the prediction accuracy can be generally improved by about 10%. The coefficient of variation for each parameter is compatible with the relative standard deviation for the reference methods except for the titratable acid content, showing the applicability of NIR transmission techniques. A relationship seems to exist between the maturity and the NIR transmission spectra of the apple.

scholarly journals Estimation of Proximate Composition of Quinoa (Chenopodium quinoa, Willd.) Flour by Near-Infrared Transmission Spectroscopy

INCREaSE ◽  
2018 ◽  
pp. 227-235
Author(s):  
Christian Encina-Zelada ◽  
Vasco Cadavez ◽  
Jorge Pereda ◽  
Luz Gómez-Pando ◽  
Bettit Salvá-Ruíz ◽  
...  
Keyword(s):  
Proximate Composition ◽  
Near Infrared ◽  
Chenopodium Quinoa ◽  
Infrared Transmission ◽  
Transmission Spectroscopy

Rapid Analysis of Methanol in Grape-Derived Distillation Products Using Near-Infrared Transmission Spectroscopy

2002 ◽  
Vol 50 (11) ◽  
pp. 3079-3084 ◽  
Author(s):  
Robert G. Dambergs ◽  
Ambrosias Kambouris ◽  
I. Leigh Francis ◽  
Mark Gishen
Keyword(s):  
Near Infrared ◽  
Rapid Analysis ◽  
Infrared Transmission ◽  
Transmission Spectroscopy

Intracerebral penetration of infrared light

1992 ◽  
Vol 76 (2) ◽  
pp. 315-318 ◽  
Author(s):  
Patrick W. McCormick ◽  
Melville Stewart ◽  
Gary Lewis ◽  
Manuel Dujovny ◽  
James I. Ausman
Keyword(s):  
Near Infrared ◽  
Signal To Noise Ratio ◽  
Depth Resolution ◽  
Infrared Light ◽  
External Carotid ◽  
Infrared Transmission ◽  
Bolus Transit ◽  
Content Type ◽  
Transmission Spectroscopy ◽  
Hemoglobin Saturation

✓ Near infrared transmission spectroscopy of the human cerebrum may allow noninvasive evaluation of cerebral hemoglobin saturation in humans. The emerging spectroscopy configuration for this application is a side-by-side source-receiver construct. The ability of this spectroscopy paradigm to detect changes in intracerebral attenuation by selective injection of the infrared tracer indocyanine green into the internal and external carotid arteries during endarterectomy is evaluated in five adult patients. In all five, simultaneous two-channel infrared transmission spectroscopy over the ipsilateral hemisphere documented tracer bolus transit with a signal-to-noise ratio greater than 100:1. In addition, the two channels could be configured to achieve depth resolution of the collected spectra.

Sign in / Sign up

Export Citation Format

Share Document