ROBUST PREDICTION OF MEAT QUALITY ATTRIBUTES USING NEAR INFRARED SPECTROSCOPY by Cut Dahlia Iskandar, Z Zainuddin, Agus Arip Munawar, Rina Aulia Barus

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Prediction of Caffeine and Protein of Arabica Coffee Beans Using Near Infrared Spectroscopy (NIRS) by Fitri Yuwita, Ifmalinda Ifmalinda, Muhammad Makky

“…Technological advances allow testing of chemical components to be carried out quickly and accurately using the NIRS (Near Infra Red Spectroscopy) method. This research aims to develop a prediction model for caffeine and protein in Solok Radjo coffee beans using the NIRS method. …”
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Use of Portable Fluorescence Spectroscopy and SIMCA Method to Test The Authenticity of Apis mellifera Honey From Coffee Flower Nectar Mixed With Two Artificial Sweeteners by Sapto Kuncoro, Diding Suhandy, Warji Warji, Dicky Ervandi

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Optimizing Atmospheric Ion Harvesting Electrodes with Graphene for Clean Energy Generation Based on Capacitive Properties and Energy Storage by Ghitha Nadhira Azka Rahiemy, Zulfikar Irham, Yuma Estu Gumilang, Avisena Kemal El-Syifa, Duta Norma Yunita, Eko Tri Sulistyani

“…The samples used in this study were identified as bilayer graphene, as confirmed by Raman Spectroscopy. CV testing yielded capacitance values of 0.40288 F for pristine graphene and 0.44879 F for graphene-Au samples. …”
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Biosynthesis of Zinc Oxide Powder Using Sandoricum koetjape Peel Extract at Various Annealing Temperature by Ari Sulistyo Rini, Nurul Hidayanti, Yolanda Rati

“…Structural, morphological, optical properties, and functional groups of samples were analyzed using X-Ray Diffraction, Scanning Electron Microscopy, UV-Vis Spectroscopy, and Fourier Transform Infrared Spectroscopy, respectively. …”
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Study of Single Diode Model of DSSC Based on Reduced Graphene Oxide as Counter Electrode by Annisa Aprilia, Fitri Yuliasari, R.E Siregar, Norman Syakir, Ayi Bahtiar, Lusi Safriani, Sahrul Hidayat, Iip Hanipah, Fitrilawati Fitrilawati

“…The electrical characteristics of DSSC was investigated by electrochemical impedance spectroscopy (EIS) in order to knowing the catalytic properties of RGO as counter electrode. …”
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HPLC DETERMINATION OF BENZOXAZOLINONE ON JERUJU PLANT (ACANTHUS ILICIFOLIUS): NARRATIVE REVIEW by Nurul Umi Salamah, Imron Wahyu Hidayat, Tiara Mega Kusuma, Heni Setyowati Esti Rahayu, Prasojo Pribadi

“…Nuclear Magnetic Resonance (NMR) spectroscopy analysis method is one of the spectroscopic methods widely used in previous studies, because NMR spectroscopy is useful in determining the structure of a chemical compound, both proton (1H) and carbon (13C) NMR. …”
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Analisis GC-MS ekstrak tanaman terfermentasi (ETT) dari kulit buah jengkol (Pithecellobium jiringa Prain) by Refilda Suhaili, Lucy Prima Ardi, Emil Salim, Mai Efdi

“…Analysis of active compounds in fermented plant extract (FPE) from the ngapi nut peel using Effective Microorganism-4 (EM-4) has been done by Gas Chromatography-Mass Spectroscopy (GC-MS). There were 88 compounds found in fermented plant extract, the major content with the area above 1% were 7 compounds such as succinic acid; ethyl hydrogen succinate; 1,2,3-benzetriol; 3,3-dimethylhexanal; L-proline, 1-methyl-5-oxo-methyl ester; 3-methoxycinnamic acid and hexadecanoic acid. …”
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Fabrication of Fluorine-Doped Tin Oxide (FTO): From experiment to its application in physics learning by Sahrul Saehana, Aqidatul Izzah, Agnes Jois’ Palamba, Darsikin Darsikin, Nor Farahwahidah Abdul Rahman

“…Based on investigations using Scanning Electron Microscopy and Electron Dispersive Spectroscopy, it is known that transparent conductive SnO2:F particles have been formed. …”
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Synthesis Zeolite Y From Lapindo Mud With Variations Filling Autoclave And Ratio Molar Si/Al by Novita Andarini, Deys Sya’fatul Maziyyah, Tanti Haryati, Yudi Aris Sulistiyo, S. Suwardiyanto

“…The samples were characterized with X-ray Fluorescence (XRF), X-Ray Diffraction (XRD), Fourier Transformation Infrared Spectroscopy (FTIR) and Gas Sorption Analyzer (GSA). …”
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Improving The Antioxidant Activity of Sodium Alginate from Sargassum sp. by Thermal Heating and Chemical Methods by Mila Safitri Rizfa, Ervia Yudiati, Diah Permata Wijayanti

“…All the parameters were evaluated spectrophotometrically. The spectroscopy results from the degradation methods showed a new absorbance spectra pattern. …”
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STUDI KOPRESIPITASI Zn2+ DAN Co2+ MENGGUNAKAN Al(OH)3 SEBAGAI KOPRESIPITAN by Indang Dewata

“…Measurement concentration of Zn2+ using Atomic Absorption Spectroscopy (AAS) with wavelength of  213,9 nm Zn2+for 240,7 nm for Co2+. …”
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TiO2-rGO Composite for Photocatalytic Decolorization of Methylene Blue Under the Visible Light Illumination by Ulfa Farizka Hidayati, Anthoni B. Aritonang, Lia Destiarti

“…The obtained TiO2-rGO photocatalyst was characterized by X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FT-IR), and Diffuse reflectance UV (DRUV). …”
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Pengujian Organoleptik dan Deteksi Logam Berat pada Bahan Baku dan Produk Bakso Ikan Lemuru (Sardinella lemuru) dari Selat Bali by Resti Nurmala Dewi, I Gusti Ayu Budiadnyani, Desy Febrianti, Dewi Fridolin Putrivenn

“…The heavy metal of samples was also analysed using Atomic Absorption Spectroscopy (AAS). This is due the current fishing activities and industries in the Bali Strait contribute to heavy metals pollution in the water. …”
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AKURASI KESAMAAN KELOMPOK DATA BERDASARKAN FCM DAN PCA-FCM PADA DATA GULA DARAH HASIL PEMINDAIAN NIRS TERHADAP DATA GULA DARAH HASIL GLUKOMETER by Dian - Pertiwi

“…Penderita diabetes biasanya menggunakan alat Glukometer untuk memeriksa kadar gula darah dengan cara mengambil sampel darah, tetati terdapat alternatif lain dalam pemeriksaan kadar gula darah tanpa menggunakan jarum suntuik yaitu merupakan alat NIRS (Near Infrared Spectroscopy). Pada penelitian ini dilakukan pengambilan data menggunakan alat NIRS dengan pemindaian pada darah dan jari terhadap 3 orang relawan dan menghasilkan output Data Gula Darah NIRS berupa data spektrum. …”
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Inhibitor Korosi dari Ekstrak Daun Sambang Darah (Excoecaria cochinchinensis L.) pada Baja Lunak Dalam HCl by Vira Anggita Gusniardi, Sanaq Elfira Putri, Suryati Suryati, Emriadi Emriadi

“… Studi inhibisi korosi pada baja lunak dalam medium HCl oleh ekstrak daun sambang darah (Excoecaria cochinchinensis L.) telah dilakukan dengan metoda kehilangan berat (weight loss), Fourier-Transform Infrared Spectroscopy (FTIR), sudut kontak, dan Scanning Electron Microscopy (SEM). …”
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Effect of Calcination Temperature on the Powder of Freshwater Snail Shells (Sulcospira testudinaria) Properties by Bintoro Siswo Nugroho, Dwiria Wahyuni, Asifa Asri, Usliana Mustafa

“…Fourier transform infrared spectroscopy (FTIR) analysis of uncalcined shell powder revealed the presence of aragonite functional groups within the CaCO3 structure. …”
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Synthesis and Optimization of Chitosan Nanoparticles of Shrimp shell as Adsorbent of Pb2+ Ions by Sulistyani Sulistyani, Hasanah H, Wijayanti T

“…Concentration of lead is determined using Atomic Absorption Spectroscopy (AAS). The results showed chitosan synthesis product has a size of ~600 nm, so that it can be expressed as nanoparticles with a degree of deacetylation of 62.69%. …”
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Potential of Cellulose Acetat Separator of Empty Palm Oil Fruit Bunches and Polyvinylidene Fluoride for Energy Storage Applications by Delovita Ginting, Tulus Na Duma, Nofia Rahmadani, Yola Suryani, Rismadani Haryanti

“…Synthesized CA EFB was characterized using Fourier Transfor Infrared (FTIR) spectroscopy which showed that cellulose had been successfully synthesized into cellulose acetate.. …”
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Optimasi Metode 1H-NMR Profiling pada Rimpang Kunyit (Curcuma domestica) by Caroline Dwiseptianti, Febri Adi Susanto, Yekti Asih Purwestri, Tri Rini Nuringtyas

“…In this research, an optimization method is used to improve efficiency in the extraction of turmeric rhizome metabolites so that the best solvent concentration is known for the analysis of fingerprinting secondary metabolites with 1H-NMR 500 MHz spectroscopy in turmeric rhizomes. The results were analyzed with MNOVA software and chemical shift obtained compared with the reference. …”
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