Rismawaty Sikanna
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Analisis Kandungan Timbal Pada Buah Apel (Pyrus Malus.L)Yang Dipajangkan Dipinggir Jalankota Palu Menggunakan Metode Spektrofotometriserapan Atom Winarna, Winarna; Sikanna, Rismawaty; Musafira, Musafira
Natural Science: Journal of Science and Technology Vol 4, No 1 (2015): Volume 4 Number 1 (March 2015)
Publisher : Univ. Tadulako

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Abstract

Telah dilakukan penelitian tentang analisis kandungan timbal pada buah apel (Pyrus Malus L.)yang dipajangkan pada jl.Sisingamangaraja dan jl.Undata kota Palu menggunakan metode spektrofotometri serapan atom. Penelitian ini bertujuan untuk mengetahui kandungan logam timbal pada buah apel. Penelitian ini dilakukan dalam dua tahap masing-masing tahap destruksi sampel dan tahap penentuan kadar logam timbal dalam sampel. Konsentrasi timbal ditentukan menggunakan metode spektrofotometri serapan atom, hasil yang diperoleh menunjukkan kandungan timbal yang paling tinggi terdapat dijalan Sisingamangaraja dengan waktu pemaparan 12 hari, kandungan timbal yang diperoleh pada buah apel dengan kulit sebesar 0,178 ppm. Sedangkan dijalan undata untuk waktu pemaparan 12 hari, kandungan timbal yang diperoleh pada buah apel dengan kulit 0,174 ppm
Kajian Teknologi Produksi Biogas Dari Sampah Basah Rumah Tangga Mappiratu, Mappiratu; Sikanna, Rismawaty
Online Journal of Natural Science FMIPA Vol 2, No 1 (2013): Volume 2 Number 1 (March 2013)
Publisher : Online Journal of Natural Science FMIPA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (71.575 KB) | DOI: 10.2012/

Abstract

The investigation about study the biogas production Technology from household waste has been done. This research aims to determine the starter concentration, water and household waste ratio to produc highest biogas, and also to find the fermentation time produce biogas with hight rendement. It was reache by applying 5 levels of cow dung starter concentration and 5 levels of water and household waste ratio i.e 0%, 6,25%, 12,5%, 18,75% and 25% and 1:2, 1:2,5, 1:3, 1:3,5 and 1:4 (b/v) respectively. The fermentation time was 3 days. The result showed that the higher cow dung concentration the lower biogas production. The highis biogas production (971,4 mg/L) was found with 6,25% of the starter. The increasing water and household waste ratio would decreased biogas production, and the using of 1:3,5 and 1:4 didn’t produce any biogas. The highest biogas production was found with 1:2 of water/household ratio i.e (631.29 mg/L). the fermentation time which produce the highest biogas rendement was found with 1 day of fermentation time
TRANSLOKASI MERKURI (HG) PADA DAUN TANAMAN BAYAM DURI (AMARANTHUS SPINOSUS L) DARI TANAH TERCEMAR Irsyad, Muhammad; Sikanna, Rismawaty; Musafira, Musafira
Online Journal of Natural Science FMIPA Vol 3, No 1 (2014): Volume 3 Number 1 (March 2014)
Publisher : Online Journal of Natural Science FMIPA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (71.575 KB) | DOI: 10.2012/

Abstract

Research about mercury translocation (Hg) into the leaf of Amaranthus Spinosus L from polluted soil has been carried out. The research aim was to know influences of  remediation time on the abilty of  mercury absorptions , knowing the concentration of mercury distribution in the leaf of A. spinosus L and abilty of A. spinosus L as hyperacumulator plant to the mercury. Remediation times used 14 days, 21 days and  42 days. The consentration of Mercury on the growth medium were 25 ppm, 50 ppm, 75 ppm, and 100 ppm. The result showed  that the time of maximum absorptions were at remediation times of  14 days by mercury acumulation of 70.6901 mg/kg DM (Dry Measure). This value indicated that A. spinosus L. is hyperacumulator to the mercury and it have a potential as phytoremediator on the area that contaminated by mercury.
FITOAKUMULASI MERKURI OLEH AKAR TANAMAN BAYAM DURI (AMARANTUS SPINOSUS LINN) PADA TANAH TERCEMAR Sopyan, Sopyan; Sikanna, Rismawaty; Sumarni, Ni Ketut
Online Journal of Natural Science FMIPA Vol 3, No 1 (2014): Volume 3 Number 1 (March 2014)
Publisher : Online Journal of Natural Science FMIPA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (71.575 KB) | DOI: 10.2012/

Abstract

The studies entitled Fitoakumulasi Mercury By Root Crops Spinach Thorns ( Amarantus spinosus Linn ) In Contaminated Soil has been done with the purpose of remediation time know effect on the ability of plant roots to absorb mercury thorn spinach and determine the maximum concentration of mercury that accumulates in the roots of spinach plants thorns in the remediation time . The method used in this study is defined as phytoremediation technology recovery , cleanup , removal or reduction of contaminants in soil or water by using the help of plants . Time remediation consists of 4 stages 7 , 14 , 21 and 42 days . While planting media concentration is 25 ppm , 50 ppm , 75 ppm and 100 ppm . The maximum concentration of adsorbed on the roots of spinach plants thorns is 0 , the dry weight of roots harvested at a institusen empire with a concentration of 100 ppm , the remediation time is day 14 ( P2 ) . And the ability of the roots to absorb mercury remediation significantly different with respect to time .
FITOAKUMULASI MERKURI OLEH AKAR TANAMAN BAYAM DURI (AMARANTUS SPINOSUS LINN) PADA TANAH TERCEMAR Sopyan, Sopyan; Sikanna, Rismawaty; Sumarni, Ni Ketut
Natural Science: Journal of Science and Technology Vol 3, No 1 (2014): Volume 3 Number 1 (March 2014)
Publisher : Univ. Tadulako

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Abstract

The studies entitled Fitoakumulasi Mercury By Root Crops Spinach Thorns ( Amarantus spinosus Linn ) In Contaminated Soil has been done with the purpose of remediation time know effect on the ability of plant roots to absorb mercury thorn spinach and determine the maximum concentration of mercury that accumulates in the roots of spinach plants thorns in the remediation time . The method used in this study is defined as phytoremediation technology recovery , cleanup , removal or reduction of contaminants in soil or water by using the help of plants . Time remediation consists of 4 stages 7 , 14 , 21 and 42 days . While planting media concentration is 25 ppm , 50 ppm , 75 ppm and 100 ppm . The maximum concentration of adsorbed on the roots of spinach plants thorns is 0 , the dry weight of roots harvested at a institusen empire with a concentration of 100 ppm , the remediation time is day 14 ( P2 ) . And the ability of the roots to absorb mercury remediation significantly different with respect to time .
REDUKSI ION KALSIUM DALAM AIR TANAH MENGGUNAKAN ADSORBEN DARI KULIT PISANG KEPOK (Musa normalis L.) Sikanna, Rismawaty
KOVALEN Vol 2, No 1 (2016)
Publisher : KOVALEN

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Abstract

ABSTRACT It had been done a research with the aim to investigate the reduction of calcium ion in the soil water using adsorbents from Kepok banana (Musa Normalis L.) peel. This research used activated adsorbents with H2SO4 3 M and unactivated, with the various time of mixed until 10, 20, 30, 40, 50 and 60 minutes. The results showed that the reduction % of calcium ion of unactivated adsorbents were 2.65; 3.03; 3.79; 4.17; 4.54; 6.44; and activated were 15.15; 16.67; 19.32; 21.59; 22.73 and 23.48 respectively. Keywords: Reduction of calcium ion, soil water, Kepok banana peel.
KAJIAN KEMAMPUAN AKAR TANAMAN KANGKUNG DARAT (Ipomoea reptans Poir) DALAM MENYERAP LOGAM MERKURI PADA TANAH TERCEMAR Khairuddin, Khairuddin; Sikanna, Rismawaty; Sabaruddin, Sabaruddin
KOVALEN Vol 3, No 3 (2017): Edisi Desember
Publisher : Chemistry Department

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (315.516 KB) | DOI: 10.22487/j24775398.2017.v3.i3.9340

Abstract

The Research has done on assessment ability plants of kale land root’s (Ipomoea reptans Poir) in absorbing metallic of mercury (Hg) on polluted soil. Methods of assessment done by complete randomized design (CRD) to determine the influence of plant age and concentration of the planting medium to large concentrations absorbed of mercury in plant roots. Age of planting consists of 4 harvest time, it is 2, 3, 4, and 5 weeks. The concentration of the cultivation medium is 25 ppm, 50 ppm, 75 ppm dan 100 ppm. The results of analysis variance test for the effect of cultivation age indicate the real difference (F calculation > F 5 %), where the test results of BNT 0,05 obtained in the third week is the maximum age of planting. The influence of concentration on analysis variance test and LSD analysis indicate the real difference, where F calculation > F 1%.Keywords: Absorption, Metal Mercury, Land Plants kale, Age of planting, growing media concentration.
ANALISIS KUALITATIF KANDUNGAN FORMALIN PADA TAHU YANG DIJUAL DIBEBERAPA PASAR DI KOTA PALU Sikanna, Rismawaty
KOVALEN Vol 2, No 2 (2016)
Publisher : Chemistry Department

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (391.404 KB) | DOI: 10.22487/j24775398.2016.v2.i2.6729

Abstract

It had been an investigation on qualitative analysis of formalin in tofu that sold in Palu markets, purpose of this study was to identifity content of formalin in samples of tofu.This identification can know with changes of the colour of the filtrate in  samples of tofu  from  pink to be brown until the colour fed off in 30 minutes.  Samples of tofu were taken from some traditional and modern markets in Palu city. The results obtained 66.7% of all of tofu samples identified content of formalin there were 6 samples with sign of M-3, T-2, T-6, T-5, M-2, and T-4, but 3 samples with sign of T-3, M-1 and T-1 not found. It was supported of texture of tofu samples. There showed that producen of tofu in Palu city is still using formalin as preservative substance in process of tofu production.Keywords: Qualitative analysis of formalin, tofu.
KAJIAN EKSTRAK ETANOL BUNGA BOGENVIL (Bougenvillea spectabillis Willd) SEBAGAI BIOINDIKATOR ASAM BASA Nurhaeni, Nurhaeni; Bande, Fitri A; Sikanna, Rismawaty
KOVALEN Vol 3, No 3 (2017): Edisi Desember
Publisher : Chemistry Department

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (354.898 KB) | DOI: 10.22487/j24775398.2017.v3.i3.9336

Abstract

Studies of ethanol extract of bougainvillea flowers (Bougenvillea spectabillis Willd) as bioindicators of the acid-base has been done. The aims to determine the content of chemical compounds contained in extracts of bougainvillea flowers and bougainvillea flower extract pH stretch. Achievement of the objectives has done through the test of ethanol extract of bougainvillea identification of compounds and the determination of the acid-base stretch of pH indicator is. The obtained results showed that bogenvil ethanol extract containing flavonoids with 401 nm absorption and provided a color change in the acid and alkaline condition the color is yellow. The appropriate acid-base titration is used as bioindicators of a strong acid titration with a strong base, weak acid with a strong base and a weak base with a strong acid.Keywords: Flowers bougainvillea, indicators, bases acid titration
Formalin Analysis of Food Ingredients in Palu Sikanna, Rismawaty; Sarapun, Ivone Venita; Puspitasari, Dwi Juli
Al-Kimia Vol 6, No 1 (2018): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1558.64 KB) | DOI: 10.24252/al-kimia.v6i1.4916

Abstract

Research on formalin analysis of food ingredients in Palu has been conducted. The purpose of the research is to find out formalin content in some food. The analyzed samples were foods that marketed in Palu, such as salt fish, noodles, mujair fish, and tofu obtained from several places in Palu. The qualitative analysis of formalin done before measured of formalin quantitatively. The data on formalin found by UV-Vis spectrophotometer with the wavelength of 385 nm. Formalin content of salted fish, noodles, Mujair fish, and tofu were 2,005 ± 0,187ppm, 2,183 ±0,231ppm, 1,931 ±0,174 ppm, and 1,957 ±0,254 ppm, respectively.