Browsing Science Laboratory Technology by Author "Agyekum, A. A."

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FT-NIR coupled chemometric methods rapid prediction of K-value in fish

Agyekum, A. A.; Kutsanedzie, F. Y. H.; Annavaram, V.; Mintah, B. K.; Asare, E. K.; Wang, B. (Elsevier B.V., 2020)

A technique for predicting the K-value of fish freshness using Fourier Transform-Near-Infrared (FT-NIR) coupled with chemometric algorithms was developed. FT-NIR spectra of 150 fresh fish were acquired, and their respective ...
Signal-enhanced SERS-sensors of CAR-PLS and GA-PLS coupled AgNPs for ochratoxin A and aflatoxin B1 detection

Kutsanedzie, F. Y. H.; Agyekum, A. A.; Annavaram, V.; Chen, Q. (Elsevier Ltd, 2020)

Ochratoxin-A (OTA) and aflatoxin-B1 (AFT-B1) pose debilitating health threats to consumers and therefore require rapid monitoring with sensors. This work synthesized silver nanoparticles (AgNPs) within (4 ≤ pH ≤ 11) ± 0.2 ...
Synthesis of highly fluorescent RhDCP as an ideal inner filter effect pair for the NaYF4:Yb,Er upconversion fluorescent nanoparticles to detect trace amount of Hg(II) in water and food samples

Annavaram, V.; Chen, M.; Kutsanedzie, F. Y. H.; Agyekum, A. A.; Zareef, M.; Ahmad, W.; Hassan, M. M.; Huanhuan, L.; Chen, Q. (Elsevier B.V., 2019)

In the present work, a new approach is established for the selective and sensitive detection of trace amount of Hg(II) using spirolactam appended rhodamine-B based organic complex-RhDCP and upconversion-luminescent ...

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