Human activities such as industrial, agricultural, and household activities around the Musi river can cause contamination of heavy metals into the Musi river body. Iron is a type of heavy metal that can pollute the environment. Therefore, it is necessary to test the iron content in Musi River water as an effort to prevent water pollution. This research aims to compare the conductometric and spe…
Contamination of bored well water has a serious impact on the environment and human health. Zinc (II) metal is one of the heavy metals that can contaminate bored well water. Zinc (II) metal ions can be analyzed using conductometric and UV-Vis spectrophotometric methods. This study aims to compare the conductometric method and the UV-Vis spectrophotometric method to the analysis of zinc metal (I…
ABSTRACT : This research aims to determine the levels of lead (II) and lead (IV) metal ion species by potentiometric methods using concentration cells and study the distribution of lead (II) and lead (IV) metal ions in the waters of Teluk Gelam Lake. The results showed the linear regression equation for metal ion of lead (II) y = 4.9162x+0.4 while lead (IV) y = 6.1105x+0.88 with R2 values 0.999…
Telah dilakukan sintesis hidroksida lapis ganda Mg-Al dan komposit Mg-Al/asam humat. Material hasil preparasi dikarakterisasi menggunakan analisis XRD, FT-IR dan BET. Hasil analisis XRD komposit Mg-Al/asam humat menunjukkan adanya puncak difraksi pada sudut sekitar 11° dan 60° yang merupakan karakteristik dari material berlapis dari LDH MgAl, serta difraksi disekitar 20° yang merupakan ciri …
Hidroksi lapis ganda merupakan material yang bersifat fleksibel dan mudah dimodifikasi, yang mana dalam hal ini dimodifikasi sebagai material komposit menggunakan asam humat dengan metode kopresipitasi yang dikarakterisasi menggunakan analisis XRD, FT-IR dan BET. Adsorben hasil preparasi selanjutnya digunakan dalam proses adsorpsi ion logam Cr(VI) dengan mengamati variasi pH, waktu, konsentrasi…
The transformation of chitin from snail shell to chitosan and the separation of cellulose acacia mangium wiild has been done. The transformation and separation product was characterized using FT-IR spectroscopy and XRD difractometer. Chitosan and cellulose were modified by impregnation process and then was used to adsorbed Fe (II) from it solution. Interaction time and Fe (H) concentration were…
Penelitian ini bertujuan membandingkan metode analisis ion logam tembaga (II) secara potensiometri dan spektrofotometri visible. Metode potensiometri dan spektrofotometri visible divalidasi dengan parameter linieritas, sensitivitas, limit deteksi, akurasi, presisi, dan estimasi ketidakpastian pengukuran. Metode analisis ion logam tembaga (II) secara potensiometri berdasarkan sel konsentrasi sed…
Ion Speciation research of Cr3+ dan Cr6+ has been conducted using potentiometric cell system potentiometric methods. The aim of this research is to determine the optimum conditions (pH and Temperature), validate the method (LoQ, LoD, accuracy, and precision), and determine ionic water content of Cr3+ dan Cr6+in the leachate. Potentiometric cell concentration methods, consist of metal chromium a…
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