scholarly journals Detecting pyrethroid pesticide residues in cocoa products using laser induced breakdown spectroscopy

2021 ◽  
Author(s):  
Lana Khanifah ◽  
Isnaeni ◽  
Maria M. Suliyanti ◽  
Muhandis Shiddiq
Keyword(s):  
Pesticide Residues ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Cocoa Products ◽  
Pyrethroid Pesticide ◽  
Laser Induced Breakdown

APPLICATION OF THE LASER INDUCED BREAKDOWN SPECTROSCOPY TECHNIQUE TO THE DETECTION OF Cl IN CHARD TO INFER THE PRESENCE OF PESTICIDES

Anales AFA ◽  
2021 ◽  
Vol 31 (4) ◽  
pp. 135-138
Author(s):  
L.J. Martino ◽  
◽  
C. A. D’Angelo ◽  
Keyword(s):  
Pesticide Residues ◽  
Potential Application ◽  
Control Sample ◽  
Laser Induced Breakdown Spectroscopy ◽  
Spectroscopy Technique ◽  
Breakdown Spectroscopy ◽  
Rapid Measurement ◽  
Laser Induced Breakdown ◽  
Food Matrices ◽  
Potential Tool

Pesticide residues in food are a threat to consumption. However, detecting residues quickly and directly on the sample is a complex job. In this work, the potential application of the Laser Induced Breakdown Spectroscopy (LIBS) technique for the rapid measurement of pesticide residues (imidacloprid, cypermethrin and chlorpyrifos) in chard leaves is explored by registering the chlorine emission line (725.66 nm). Significant differences can be observed with respect to the control sample, evidencing the applicability of this technique as a potential tool for the study of pesticide residues in food matrices.

Detection of pesticide residues on fruit surfaces using laser induced breakdown spectroscopy

RSC Advances ◽  
2015 ◽  
Vol 5 (97) ◽  
pp. 79956-79963 ◽  
Author(s):  
Xiaofan Du ◽  
Daming Dong ◽  
Xiande Zhao ◽  
Leizi Jiao ◽  
Pengcheng Han ◽  
...  
Keyword(s):  
Pesticide Residues ◽  
New Method ◽  
Laser Induced Breakdown Spectroscopy ◽  
Fast Detection ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Chlorpyrifos Residue

The detection of chlorpyrifos residue on the surface of apples by laser induced breakdown spectroscopy (LIBS) was explored, establishing a new method for the fast detection of pesticide residues on fruit.

Nanosecond laser-induced breakdown assisted by femtosecond laser pre-ionization in air: the effect on spatial resolution and continuous radiation

2020 ◽  
Vol 92 (2) ◽  
pp. 20701
Author(s):  
Bo Li ◽  
Xiaofeng Li ◽  
Zhifeng Zhu ◽  
Qiang Gao
Keyword(s):  
Femtosecond Laser ◽  
Spatial Resolution ◽  
Laser Induced Breakdown Spectroscopy ◽  
Nanosecond Laser ◽  
Breakdown Threshold ◽  
Powerful Technique ◽  
Breakdown Spectroscopy ◽  
Continuous Radiation ◽  
Laser Induced Breakdown

Laser-induced breakdown spectroscopy (LIBS) is a powerful technique for quantitative diagnostics of gases. The spatial resolution of LIBS, however, is limited by the volume of plasma. Here femtosecond-nanosecond dual-pulsed LIBS was demonstrated. Using this method, the breakdown threshold was reduced by 80%, and decay of continuous radiation was shortened. In addition, the volume of the plasma was shrunk by 85% and hence, the spatial resolution of LIBS was significantly improved.

Sign in / Sign up

Export Citation Format

Share Document