cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota samarinda,
Kalimantan timur
INDONESIA
PROSIDING SEMINAR KIMIA
Published by Universitas Mulawarman
ISSN : -     EISSN : -     DOI : -
Core Subject : Science,
Chemistry
Arjuna Subject : -
Articles 45 Documents
 1   2   3   4   5 
Search results for , issue "SEMINAR NASIONAL KIMIA 2017" : 45 Documents clear
ANALISIS ION Cd(II) MENGGUNAKAN RESIN TERMODIFIKASI ABU KULIT SINGKONG - Ca - ALGINAT SEBAGAI BAHAN PENGISI KOLOM DALAM TAHAPAN PRAKONSENTRASI Rientha Septiana; Aman Sentosa Panggabean; Bohari Yusuf
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2017
Publisher : PROSIDING SEMINAR KIMIA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Ca-Alginate (CAA) resins modified by ash of cassava roots bark (ACRB) and utilized as material for column filler in ion preconcentration stage has been carried out. Preconcentration method was carried out by off-line method, sample poured into column by down flow, eluted by 1,0 M HCl and measured by Atomic Absobtion Spectrofotometer (AAS). Optimum component to produce modified microcapsule ACRB-CAA in mixture of 1% Na-Alginate, 1M CaCl2 and 0,05 gr of ACRB. The result revealed that ion Cd(II) retention in pH 4, sample volume and eluent HCl were 10 mL and 4 mL respectively and retention capacity 1,3705 mg Cd/gr resins. This method achieved a good result for Cd ion analysis with limit of detection 0,0101 mg/L and 1,29% of %CV and can be applied for ion Cd analysis of sample water from environment with percent of recovery >95% by spike method. Environmental sample taken from Mahakam River, well-water, ex coal excavation site. Keywords : Preconcentration, Modified resins Ash of Cassava Roots bark - Ca - Alginate
SINTESIS GLUTAMIDA DARI METIL ESTER MINYAK BIJI KARET (Hevea brasiliensis) DENGAN ASAM GLUTAMAT Citra Uli Sitompul; Chairul Saleh; Daniel Daniel
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2017
Publisher : PROSIDING SEMINAR KIMIA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Synthesis of glutamide from methyl ester of rubber seed oil (Hevea brasiliensis) with glutamic acid by amidation reaction has been performed. The synthesis process involves extracting, esterification and amidation. The results showed that rubber seed oil content was 39,75%, acid number 20,98 mg KOH / gr and FFA level was 10,472%. Rubber seed oil was previously converted to methyl esters through esterification process so as to obtain a decrease of FFA to 1.34%. The result of GC-MS analysis shows the most dominant methyl ester composition is methyl linoleate which is 43,11%. The amidation process is carried out by reacting the rubber seed oil methyl esters with glutamic acid. Fourier Transform-Infra Red spectrum of glutamide, showing the absorption peak for N-H group at wave number 3429,43 cm-1 and the absorption peak for C=O amide group at wave number 1643,35 cm-1. Keywords: Rubber Seed Oil, Esterification, Amidation, Glutamide.
SKRINING FITOKIMIA DAUN SALIARA (Lantana camara L) SEBAGAI PESTISIDA NABATI PENEKAN HAMA DAN INSIDENSI PENYAKIT PADA TANAMAN HOLTIKULTURA DI KALIMANTAN TIMUR Sri Purwati; Sonja V. T. Lumowa; Samsurianto Samsurianto
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2017
Publisher : PROSIDING SEMINAR KIMIA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Kalimantan Timur memiliki potensi untuk melakukan pengembangan terhadap budidaya tanaman holtikultura, namun selama ini belum dapat diwujudkan. Salah satu hambatan pada pengembangan budidaya tanaman holtikultura adalah serangan serangga hama yang dapat menurunkan produksi tanaman holtikultura. Penelitian ini bertujuan untuk mengetahui kandungan kimia yang ada pada bahan alam yaitu daun saliara (Lantana camara L) sebagai bahan baku pembuatan pestisisda nabati penekan serangan serangga hama daan insidensi penyakit tanaman holtikultura di Kalimantan Timur. Daun saliara merupakan daun tanaman yang mudah didapatkan di wilayah Kalimantan Timur. Selama ini tanaman tersebut selama dianggap sebagai gulma dan belum banyak dimanfaatkan. Sampel pada penelitian adalah daun saliara yang diambil dari berbagai daerah di Kaltim yaitu Kutai Timur, Kutai Barat dan Kutai Kartanegara, Kalimantan Timur. Sampel daun selanjutnya dikeringkan dan dibuat serbuk. Masing-masing sampel daun dilarutkan dalam etanol 96% dan dimaserasi selama 24 jam. Kemudian dilakukan uji fitokimia untuk mengetahui adanya alkaloid, flavonoid, tanin, saponin, steroid, dan triterpenoid. Hasil uji fitokimia ekstrak daun saliaramenunjukkan adanya kandunganbahan aktif tannin, saponin, steroid. Kandungan bahan aktif yang terdapat pada ekstrak daun tersebut memiliki potensi sebagai pestisida nabati karena dapat mempengaruhi serangga hama dan bakteri penyebab penyakit pada tanaman holtikultura. Kata Kunci : Skrining Fitokimia, Daun Saliara, Pestisida Nabati
UJI FITOKIMIA, TOKSISITAS (BRINE SHRIMP LETHALITY TEST) SERTA ANTIOKSIDAN KULIT BATANG TERAP (Artocarpus elasticus reinw) DENGAN METODE DPPH (2,2-diphenyl-1-picrylhidrazyl) Maulidya Hafsari Fauzi; Erwin Erwin; Irawan W. Kusuma
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2017
Publisher : PROSIDING SEMINAR KIMIA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Phytochemical test, the mortality of larvae shrimp (Brine Shrimp Lethality Test) and antioxidant activity test of secondary metabolites stem bark of Terap (Artocarpus elasticus reinw) by several of method such as extraction, phytochemical test, the mortality of larvae shrimp (Brine Shrimp Lethality Test) and antioxidant activity test. Based on the result of Brine Shrimp Lethality Test was analyzed using SAS probit analysis to know the value of Lethal Concentration 50 % (LC50), Brine Shrimp Lethality test result that the fraction of ethyl acetate has the highest toxicity with LC50 value obtained 153,3788 ppm. Based on the results of antioxidant activity test that ethanol extract has the highest antioxidant activity with IC50 value obtained at 70.59 ppm. Based on the Phytochemical test, the mortality of larvae shrimp (Brine Shrimp Lethality Test) and antioxidant activity test , it was obtained secondary metabolite compound of phenolic active in stem bark of Terap. Keywords: Terap (Artocarpus elasticus reinw), Brine Shrimp Lethality Test, Antioxidant Activity test.
PERBANDINGAN METODE DESTRUKSI WET DIGESTER DENGAN MUFFLE FURNACE PADA PENENTUAN KADAR Pb2+ (TIMBAL) DALAM RAMBUT Firdaus S. R; Saibun Sitorus
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2017
Publisher : PROSIDING SEMINAR KIMIA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

An appeal has been tested for two methods of Wet Digester destruction with Muffle Furnace for determination of Pb (lead) metal ion content in hair. The Wet Digester destruction uses temperature 578oC for 4 hours and the addition of HNO3(p) at the beginning and end of destruction, while Muffle Furnace destruction uses temperature 600oC and addition of HNO3(p) at the end of destruction.Analysis of Pb (lead) metal ion content of destruction results was done with Atomic Absorption Spectrophotometer (AAS).Results of laboratory analysis that in the workers hair of heavy equipment Department Bintang PT. KPC is shown to contain Pb (lead) metal ions. To determine a more valid method of extraction performed linear regression testing, correlation coefficient, Ttabel test and determinant coefficient. The results of linear regression testing for the destruction of Wet Digester obtained r value = 0,867, the correlation coefficient r = 0,867 ≥ r table = 0,564 (positive correlation) and the coefficient of determinant % D = 75,2 %, while the results of linear regression testing for Muffle Furnace destruction obtained r value = 0,864, correlation coefficient r = 0,849 ≥ r table = 0,564 (positive correlation) and the coefficient of determinant % D = 74,8 %. The Destruksi Wet Digester is more valid than the Muffle Furnace destruction because the linear regretting value is closer to the value of r = 1 (perfect linear regression value) and the correlation coefficient and the determinant coefficient of Wet Digester destruction is higher than the correlation coefficient and the determinant coefficient of Muffle Furnace destruction . Keywords: Hair, Lead, Correlation Coefficient, Determination, Wet Digester, Muffle Furnace, Absorption Spectrophotometer (AAS)
SINTESIS ETILENDIAMIDA DARI METIL ESTER MINYAK BIJI KELOR (Moringa oleifera) MELALUI REAKSI AMIDASI DENGAN ETILENDIAMIN YANG BERFUNGSI SEBAGAI SURFAKTAN Arif Wardoyo; Daniel Daniel
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2017
Publisher : PROSIDING SEMINAR KIMIA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The ethylenediamide synthesis from methyl ester of Moringa oleifera seed oil has been performed by the amidation reaction. The results showed that GC analysis denoted the most dominant composition of oleic fatty acid in 70.72%. The ethylenediamide which has been resulted an acid,was containedof 12.04 mg KOH/gram of Moringa oleifera seed oil, 5.58 mg KOH/gram of saponification number, and 10.72 of HLB practical value. The FT-IR spectrum has provided a peak of specific absorption for the -C=O amide group, -C-N- which represents the specific group of ethylenediamide. OH and CO ester group showed the process of ethylenediamde synthesis has not proceeded perfectly as seen in the differences of practical and theoretical HLB values. Keywords : Moringa oleifera seed oil, esterification, ethylendiamide, HLB.
IMPREGNASI NATRIUM HIDROKSIDA PADA KARBON AKTIF CANGKANG JENGKOL SEBAGAI KATALIS DALAM PEMBUATAN BIODIESEL Survina Osalia Br Ginting; Daniel Daniel; Noor Hindryawati
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2017
Publisher : PROSIDING SEMINAR KIMIA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Telah dilakukan penelitian tentang pembuatan katalis NaOH/karbon aktif sebagai katalis basa heterogen dengan metode impregnasi untuk diaplikasikan dalam pembuatan biodiesel dari minyak kelapa sawit. Karbon aktif diperoleh dari limbah cangkang jengkol lalu diimpregnasi dengan NaOH dan dikarakterisasi menggunakan SEM. Pada hasil karakterisasi menggunakan SEM menunjukkan pada karbon cangkang jengkol terdapat morfologi permukaan yang heterogen dan tidak beraturan dengan struktur pori–pori yang besar sedangkan pada katalis NaOH/karbon aktif gambar SEM menunjukkan struktur morfologi pada permukaan karbon terlihat lebih halus dan banyak pori-pori karbon yang ditutupi oleh molekul NaOH. Dengan metode pengabuan basah diperoleh pada karbon aktif mengandung 0,021% total Na sedangkan pada katalis NaOH/karbon aktif mengandung 0,212%. Dengan adanya penambahan konsentrasi Na pada katalis menandakan bahwa Na sudah terimpregnasi pada karbon aktif sehingga dengan adanya spesi aktif dari ion Na+ katalis dapat diaplikasikan dalam pembuatan biodiesel. Biodiesel yang dihasilkan dianalisa dengan GC-MS untuk mengetahui komposisi biodiesel. Kata Kunci: Impregnasi, Karbon Aktif, Cangkang Jengkol, Transesterifikasi, Minyak Kelapa Sawit, Biodiesel
STUDI PENDAHULUAN MASERASI COUPLING ELEKTROSINTESIS DALAM MENGEKSTRAKSI NIKOTIN YANG TERKANDUNG DALAM PUNTUNG ROKOK DAN ANALISA MENGGUNAKAN SPEKTROSKOPI UV-VIS Muhammad Taufik; Rid Wanto; Siti Rahmah Cibro; Desi Ardilla; Mariany Razali; Dafni Mawar Tarigan
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2017
Publisher : PROSIDING SEMINAR KIMIA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This paper is a preliminary research in the application of electrosynthesis method in extracting the sample. The maceration process of extraction is one of the simplest ways of extracting nicotine in a preparation. The extraction process can be accelerated by electrochemical principle. The method developed is maceration coupling electrosynthetise in analyzing nicotine contained in cigarette butts. Descriptive method developed in the process of nicotine maseration on filter cigarettes and non-filter cigarettes using ethanol solvents. The experimental method was developed in maceration process and maceration coupling electrosynthesis with variation of time respectively 5, 10, 15, 20, 25 minutes. The best results were obtained on non-filter cigarettes using maceration coupling electrosynthesis at 20 and 25 minutes with qualitative results with cyanogen bromide marked by abundant yellow (+++). The analysis continued using UV-Vis spectrophotometry method and obtained the best sample concentration on non-filter cigarette method of maceration coupling electrosynthesis at 15 minute ( 0,01003 ppm). Keywords: nicotine, filter cigarettes, non-filter cigarettes, electrosynthesis, UV-Vis spectrophotometry
PEMBUATAN KARBON AKTIF DARI TANDAN KOSONG PISANG KEPOK (Musa paradisiaca L.) DENGAN BANTUAN GELOMBANG ULTRASONIK Helbyarti Mawar Sari; Noor Hindryawati; R.R. Dirgarini N.
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2017
Publisher : PROSIDING SEMINAR KIMIA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Syntheses of activated carbon from empty bunches of kepok banana (MusaParadisiaca L) (TKP) with ultrasonic waves have been done. The of activated carbon were made via three step, namely carbonization at 350 °C, silica extraction with NaOH, activation with H3PO4 and ultrasonic waves exposure (exposure time 30, 60, and 90 minutes). The best quality activated carbons (according to SNI 06-3730-95) were obtained from the process with ultrasonic wave exposure for 90 minute for activated carbon TKP. Respecting the best quality activated carbon TKP has 4.22 % water content, 3.67 % ash content, 17.52 % volatile matter, 74.59 % carbon content and 840.14 mg/g absorption capacity of lodium. The of activated carbon was analyzer characterized by Scanning Electron Microscope (SEM) showed that the pore of activated carbon was more perfectly formed and regular. Analyzer of surface area with Braunanear Elmmelt and Teller (BET) method showed surface area without exposure at TKP that is 35 m2/g with exposure of TKP that is 94 m2/g. Exposure ultrasonic waves increased surface area and facilitated the formation of more pores with ordered form than the non- exposure one. Keywords: Empty bunches banana, carbon, activated H3PO4, and ultrasonic wave
ANALISIS KANDUNGAN TOTAL LOGAM (Pb), (Fe) DAN PROTEIN PADA KERANG DARAH (Anadaragranosa L) DARI PESISIR LAUT KENYAMUKAN SANGATTA KALIMANTAN TIMUR Edman Tandirerung; Rudi Kartika; Noor Hindryawati
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2017
Publisher : PROSIDING SEMINAR KIMIA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The Research on"Analysis of the total content of Pb, Fe and protein in the blood clams (Anadara granosa L) from sea coast of Kenyamukan Sangatta in East Kalimantan" .Penelitian aims to determine the total content of Pb, Fe and shellfish proteins in the blood clams by the size and location of different sampling. Then the total content of Pb, Fe and protein correlated using Least Square method. The total content analysis of Pb, Fe using AAS (Atomic Absorption Spectrophotometer) and analysis of protein content using the Kjeldahl method. In this study, the total content of Pb, Fe on the location of Pier Oil and Gas companies with an average of 0.805, 1,684 mg / L, general Piers in Kenyamukan 0885, 1,849 mg / L, at Pier coal port 0813, 1,792 mg / L. The protein content of blood clams on the location of Pier Oil and Gas Company with an average of 20.8981%, general Piers in Kenyamukan obtained an average protein content of 23.7947% and Pier coal companies earned an average protein content of 23.4533%. Correlation of the total content of Pb, Fe against the protein content in blood clams (Anadara granosa L) r= 0.8176, r = 0.9066. Keywords: Blood clams (Anadara granosa L), Metal Pb, Fe, Protein

Page 2 of 5 | Total Record : 45

 1   2   3   4   5 

Filter by Year

2017 2017


Reset
Filter By Issues
All Issue Vol 4 No 1 (2025): Prosiding SNK 2025 Vol 3 No 2 (2025): Prosiding SNKT 2024 Vol 3 No 1 (2024): Prosiding SNK 2024 Vol 2 No 2 (2024): Prosiding SNKT III 2023 Vol 2 No 1 (2023): Prosiding SNK 2023 Vol 1 No 2 (2023): Prosiding SNKT II 2022 Vol 1 No 1 (2022): Prosiding SNK 2022 2021: SEMINAR NASIONAL KIMIA 2021 Prosiding SNKT Himpunan Mahasiswa Kimia FMIPA UNMUL 2021 2020: Prosiding Seminar Nasional Kimia Berwawasan Lingkungan (SNK-BL) 2020 Seminar Nasional Himpunan Mahasiswa Kimia 2020 SEMINAR NASIONAL KIMIA 2019 SEMINAR NASIONAL KIMIA 2018 SEMINAR NASIONAL KIMIA 2017 PROCEEDING OF INTERNATIONAL CONFERENCE 2015 SEMINAR NASIONAL KIMIA 2014 SEMINAR NASIONAL KIMIA 2013 More Issue