scholarly journals Rapid and non-destructive spectroscopic method for classifying beef freshness using a deep spectral network fused with myoglobin information

2021 ◽  
Vol 352 ◽  
pp. 129329
Author(s):  
Sungho Shin ◽  
Youngjoo Lee ◽  
Sungchul Kim ◽  
Seungjun Choi ◽  
Jae Gwan Kim ◽  
...  
Keyword(s):  
Spectroscopic Method ◽  
Spectral Network ◽  
Non Destructive

scholarly journals NON-DESTRUCTIVE RAMAN SPECTROSCOPIC METHOD FOR ESTIMATION OF MONTELUKAST FROM TABLET DOSAGES FORM

2017 ◽  
Vol 9 (6) ◽  
pp. 161
Author(s):  
Jwal Doctor ◽  
Palak Thakkar ◽  
Mitul Prajapati ◽  
Nrupresh Patel ◽  
Priti J. Mehta
Keyword(s):  
Limit Of Detection ◽  
Process Analysis ◽  
Spectroscopic Method ◽  
Pharmaceutical Products ◽  
Integration Time ◽  
Limit Of Quantification ◽  
Raman Spectroscopic ◽  
Quality Checks ◽  
Technology Tool ◽  
Non Destructive

Objective: A rapid, non-destructive and non-solvent raman spectroscopic method for estimation of Montelukast from tablet dosages form Methods: Quantification was carried out by measuring the intensity of analyte peak at 1440 cm-1. Each Raman spectrum corresponded to an accumulation of 4 scans with an exposure time of 5 sec for each scan with a total integration time of 20 sec.Results: The method exhibited linearity between 2 mg-24 mg show well resolve quantification From MON. The linearity equation was calculated as y = 13.036x+70.819 and the correlation coefficient was found to be 0.997 for MON. LOD (limit of detection) and LOQ(limit of quantification) values were calculated using the calibration curve slope and standard deviation of the response. The LOD (limit of detection) and LOQ (limit of quantification) values were found to be 1.71 mg and 5.13 mg respectively.Conclusion: The developed method was successfully applied for assay of montelukast in the intact formulation. The method was validated according to an international conference on harmonisation guidelines. A recent study, montelukast sodium had been analysed by the raman method, but, looking into the tremendous potential of raman spectroscopic method; it can be extended as a process analysis and technology tool in various quality checks during manufacturing of pharmaceutical products.

scholarly journals A Quick NIR Based Method for Ascertaining Coffee and Chicory Percentage in a Mixture

2020 ◽  
Author(s):  
Nanishankar Harohally ◽  
Cyril Thomas
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Human Population ◽  
Near Infrared ◽  
Spectroscopic Method ◽  
Instant Coffee ◽  
Solid Mixture ◽  
The Usa ◽  
Coffee Powder ◽  
Non Destructive

<p>Coffee is a widely consumed beverage of the human population for several centuries. In coffee consuming countries encompassing India, Brazil, France, and parts of the USA, chicory is added to coffee as a substitute and to enhance the color of the beverage. There is hardly any non-destructive technique to ascertain the percentage of chicory and coffee in the solid mixture. Herein, we report a simple and quick near infrared spectroscopy (NIR) based method for quantification of coffee and chicory percentages in the solid mixture. The method has been developed for Arabica, Robusta variety coffee powder in addition to instant coffee powder. We evaluated a commercial coffee powder having reported values of 65 % of Coffee and 35 % of Chicory by employing the developed method. The achieved method revealed a result of 64.2 % of coffee and 35.8 % of Chicory. Results demonstrate the power of NIR spectroscopic method as a rapid technique for quantification of coffee and chicory percentage in the solid mixture which is expected to facilitate the consumer and coffee industry.</p>

scholarly journals A Quick NIR Based Method for Ascertaining Coffee and Chicory Percentage in a Mixture

2020 ◽  
Author(s):  
Nanishankar Harohally ◽  
Cyril Thomas
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Human Population ◽  
Near Infrared ◽  
Spectroscopic Method ◽  
Instant Coffee ◽  
Solid Mixture ◽  
The Usa ◽  
Coffee Powder ◽  
Non Destructive

<p>Coffee is a widely consumed beverage of the human population for several centuries. In coffee consuming countries encompassing India, Brazil, France, and parts of the USA, chicory is added to coffee as a substitute and to enhance the color of the beverage. There is hardly any non-destructive technique to ascertain the percentage of chicory and coffee in the solid mixture. Herein, we report a simple and quick near infrared spectroscopy (NIR) based method for quantification of coffee and chicory percentages in the solid mixture. The method has been developed for Arabica, Robusta variety coffee powder in addition to instant coffee powder. We evaluated a commercial coffee powder having reported values of 65 % of Coffee and 35 % of Chicory by employing the developed method. The achieved method revealed a result of 64.2 % of coffee and 35.8 % of Chicory. Results demonstrate the power of NIR spectroscopic method as a rapid technique for quantification of coffee and chicory percentage in the solid mixture which is expected to facilitate the consumer and coffee industry.</p>

A combined spectroscopic method for non-destructive gem identification

1997 ◽  
Vol 25 (8) ◽  
pp. 532-539 ◽  
Author(s):  
L.I. Tretyakova ◽  
N.B. Reshetnyak ◽  
Yu. V. Tretyakova
Keyword(s):  
Spectroscopic Method ◽  
Non Destructive

scholarly journals Application of ultrasonic resonance oscillations to estimate the size of phase inclusions in samples of chrome – iron alloys

2019 ◽  
Vol 62 (7) ◽  
pp. 564-570
Author(s):  
A. V. Berestov ◽  
E. M. Kudryavtsev ◽  
S. P. Martynenko ◽  
I. I. Rod’ko
Keyword(s):  
Internal Friction ◽  
Fast Neutron ◽  
Magnetic Phase ◽  
Spectroscopic Method ◽  
Iron Alloys ◽  
Standard Equipment ◽  
Coupled Oscillations ◽  
Fuel Rod ◽  
Non Destructive ◽  
Resonance Oscillations

During the implementation of strategic research program of the Technology Platform “Closed Nuclear Fuel Cycle with Fast Reactors”, hot cells are fitted with original non-standard equipment for primary post-reactor non-destructive studies of critical fast reactor materials. These materials include chrome-iron alloys, considered as promising for fuel rod cladding of fast neutron reactors. During the investigation via the ultrasonic spectroscopic method of internal friction of cylindrical samples from chrome-iron alloys in a narrow temperature range near 550 K at their cooling with rate of about 0.2 K/s, we have revealed an anomalous effect from the point of view of oscillations classical theory. Its peculiarity consists in the occurrence of coupled oscillations in samples with a nonuniform temperature distribution along the radius, in case the interval of temperature variation contains the point of the magnetic phase transition of the material. Such a sample can be considered as a complex oscillatory system consisting of peripheral (cooler) and central areas in different magnetic states, with a pulsating interface, on which mechanical stresses act. It was estimated that this anomalous mode of oscillations is associated with the influence of dynamic vibrational stresses on formation and magnetic phase transformations in carbonitride inclusions occurring during heat treatment of alloys. A theoretical description of this effect is proposed. It is shown that by registering the parameters of coupled oscillations, it is possible to estimate the sizes of the resulting phase inclusions. The discovered features and established regularities of resonance oscillations in combination with the traditional method of internal friction can be used to detect metastable phase inclusions occurring at intermediate stages of the material structure, and to estimate their sizes. It will undoubtedly be useful in the case of primary non-destructive tests in hot cells of heavily irradiated samples of these alloys when optimizing their composition for fuel rod claddings of fast neutron reactors.

scholarly journals USE OF NON-DESTRUCTIVE IN VIVO SPECTROSCOPIC ANALYSES IN DETERMINING LEAF CHLOROPHYLL CONTENTS AND LIGHT ABSORPTION CHARACTERISTICS OF BEDDING PLANTS GROWN WITH DIFFERENT N SOURCE

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1098G-1098
Author(s):  
Byoung Ryong Jeong ◽  
Chi Won Lee ◽  
Larry S. Daley
Keyword(s):  
Light Absorption ◽  
Spectroscopic Method ◽  
Chl A ◽  
Chlorophyll Contents ◽  
Leaf Chlorophyll ◽  
Spectroscopic Analyses ◽  
N Source ◽  
Non Destructive ◽  
Absorption Characteristics

A non-destructive in vivo spectroscopic method for leaf chlorophyll (Chl) measurement was developed. Spectroscopic analyses of intact leaves of ageratum, petunia and salvia showed strong correlations between leaf light absorption at 723 nm and Chl-a contents. NH4+ increased Chl contents in both ageratum and petunia whereas NO3- increased Chl contents in salvia. Plants fed with NH4+ + NO3- also contained higher Chl. Chl-a/-b ratio in salvia was lowered by NO3-. Ageratum, petunia and salvia grown with either NH4+, NO3-, or NH4+ + NO3- were also examined for their light absorption characteristics. Light absorption at 705 nm by ageratum and petunia leaves was increased by NH4+ treatment. NH4+ is believed to have changed the structure of photosystem I in both ageratum and petunia but not in salvia. This result explain reasons for salvia's sensitivity to NH4+ fed as a sole N source.

Fast and non-destructive Raman spectroscopic determination of multi-walled carbon nanotube (MWCNT) contents in MWCNT/polydimethylsiloxane composites

The Analyst ◽  
2018 ◽  
Vol 143 (18) ◽  
pp. 4347-4353
Author(s):  
Donghyun Ryoo ◽  
Jong Yun Kim ◽  
Pham Khac Duy ◽  
Sang Hoon Cho ◽  
Hoeil Chung ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Spectroscopic Method ◽  
Spectroscopic Determination ◽  
Raman Spectroscopic ◽  
Multi Walled Carbon Nanotube ◽  
Non Destructive

A versatile Raman spectroscopic method to determine the contents of carbon nanotubes (CNTs) in CNT/polydimethylsiloxane (PDMS) composites is demonstrated, and important issues directly related to the accuracy of the measurement were investigated.

scholarly journals USE OF NON-DESTRUCTIVE IN VIVO SPECTROSCOPIC ANALYSES IN DETERMINING LEAF CHLOROPHYLL CONTENTS AND LIGHT ABSORPTION CHARACTERISTICS OF BEDDING PLANTS GROWN WITH DIFFERENT N SOURCE

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1098g-1098
Author(s):  
Byoung Ryong Jeong ◽  
Chi Won Lee ◽  
Larry S. Daley
Keyword(s):  
Light Absorption ◽  
Spectroscopic Method ◽  
Chl A ◽  
Chlorophyll Contents ◽  
Leaf Chlorophyll ◽  
Spectroscopic Analyses ◽  
N Source ◽  
Non Destructive ◽  
Absorption Characteristics

A non-destructive in vivo spectroscopic method for leaf chlorophyll (Chl) measurement was developed. Spectroscopic analyses of intact leaves of ageratum, petunia and salvia showed strong correlations between leaf light absorption at 723 nm and Chl-a contents. NH4+ increased Chl contents in both ageratum and petunia whereas NO3- increased Chl contents in salvia. Plants fed with NH4+ + NO3- also contained higher Chl. Chl-a/-b ratio in salvia was lowered by NO3-. Ageratum, petunia and salvia grown with either NH4+, NO3-, or NH4+ + NO3- were also examined for their light absorption characteristics. Light absorption at 705 nm by ageratum and petunia leaves was increased by NH4+ treatment. NH4+ is believed to have changed the structure of photosystem I in both ageratum and petunia but not in salvia. This result explain reasons for salvia's sensitivity to NH4+ fed as a sole N source.

scholarly journals Enrichment determination of low – enriched uranium material by gamma spectroscopic method

2014 ◽  
Vol 4 (2) ◽  
pp. 1-6
Author(s):  
Van Loat Bui ◽  
Van Quan Nguyen ◽  
Tuan Anh Le ◽  
Van Bay Nguyen ◽  
Thi Hong Bui ◽  
...  
Keyword(s):  
Spectroscopic Method ◽  
Efficiency Calibration ◽  
Uranium Enrichment ◽  
Activity Ratios ◽  
Intrinsic Efficiency ◽  
Enriched Uranium ◽  
Non Destructive ◽  
Good Agreement

In this work the non - destructive gamma spectroscopic method for determination of uranium enrichment is presented. In order to determine the uranium enrichment the activity ratios of 234U/235U and 238U/235Uwere measured. The activity ratios234U/235U and 238U/235U were determined by using intrinsic efficiency calibration. As a test of this method, low - enriched uranium standard was measured, the obtained result was in good agreement with the estimated value.

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