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2019 JKM YuliYana ISOLATION OF STEROID COMPOUNDS IN THE n-HEKSANA FRACTION FROM JARUM TUJUH BILAH LEAVES EXTRACT (Leuenbergeria bleo (Kunth) D.C.)
(2019-11-01)
This study aims to find secondary metabolites isolated from the leaves of the Jarum Tujuh Bilah (Leuenbergeria bleo
(Kunth) D.C.). The method used was maceration, fractionation and column chromatography and was identified ...
2019 JBAT Modification of Spent Bleaching Earth with WO3 and the Application for Photocatalytic Degradation of Waste Dyestuff under Solar Light
(2019-12)
Degradation of blue dye waste in Sarong Samarinda production using WO3-bleaching earth
(BE) has been conducted. Structural and morphological characterization has conducted
using X-ray diffraction (XRD), and Scanning ...
2019 Alchemy Validasi Metode Penentuan Benzena, Toluena dan Xilena pada Sampel Udara dan Tanah Menggunakan Kromatografi Gas
(2019-03-01)
Penelitian tentang validasi metode penentuan kadar benzena, toluena dan xilena pada sampel udara
dan tanah dengan menggunakan kromatografi gas telah dilakukan. Untuk mendapatkan hasil pengukuran
yang valid, beberapa ...