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T Karma
T Karma
Chemistry
Infrared spectroscopy
Fourier transform infrared spectroscopy
Ethanol
combination method
5
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Identification of Geothermal and Non-Geothermal Laban Plant (Vitex Pinnata) With a Combination of Infrared Spectroscopy – Principal Component Analysis Methods
2021
S Azhari
Diana Setya Ningsih
C A Nuraskin
T Karma
Muslem
G M Idroes
R Suhendra
Trina Ekawati Tallei
S Rahimah
Khairan
R Idroes
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Chemometric classification of geothermal and non-geothermal ethanol leaf extract of seurapoh (Chromolaena odorata Linn) using infrared spectroscopy
2021
A Abubakar
H. Yusuf
M. Syukri
R. Nasution
T Karma
A. A. Munawar
R Idroes
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Identification of Gayo arabic coffee beans and powder using the FTIR-PCA combination method
2021
Z. Akbar
R Idroes
B. Ginting
T Karma
S Rahimah
Zuchra Helwani
M. Yusuf
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Classification of Gayo Arabica coffee ethanol extract using FTIR-PCA
2021
Z. Akbar
R Idroes
M. Yusuf
T Karma
B. Ginting
S Rahimah
G M Idroes
M Paristiowati
Trina Ekawati Tallei
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Identification of Giant Calotrope (Calotropis Gigantea) in Alue Naga and Ulee Lheu Coast Using Combination Method of Infrared Spectroscopy and Principal Component Analysis
2021
T Karma
Muslem
G M Idroes
Athaillah
R Suhendra
E. Suhartono
Z. Helwani
R Idroes
Khairan
S Azhari
Diana Setya Ningsih
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