Browsing by Author "Hanifah, Tengku Abu"

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    ANALISIS KANDUNGAN AMONIAK, SULFIDA DAN KROM PADA SUNGAI SAIL DAN SUNGAI AIR HITAM PEKANBARU
    (2016-05-10) Setiani, Lisa; Hanifah, Tengku Abu; Anita, Sofia
    Physicochemical parameters namely Temperature, pH, DHL and DO were analyzed from December 2014 to Februari 2015 in the water of Sail River and Air Hitam River Pekanbaru. Analysis of ammonia, sulfides and chromium in the Sail River and Air Hitam River Pekanbaru was conducted to determinethe quality of river water based on PP No 82 of 2001 class II and Governor Decree 8 of 2001 grade II. Samples were collected by using purposive sampling in rain and hot weather at 4 stations. Ammonia and sulfide were analyzed by UV-Vis spectrophotometer while chromium by Atomic Absorption Spectrophotometer. Concentration of ammonia, sulfide and chromium in Sail River sample in the rainy season was ranged from 3.99 to 5.48 mg/L, 0.44 to 0.95 mg/L and 2.47 to 4.43 ppm; respectively. While in the hot season was ranged from 3.69 to 5.60 mg/L, 0.34 to 0.79 mg/L, and 2.04 to 3.35 ppm; respectively. Concentration of ammonia, sulfide and chromium in Air Hitam River sample in the rainy season was ranged from 4.31 to 6.06 mg/L, 0.30 to 0.80 mg/L and 0.60 to 2.68 ppm; respectively. While in the hot season was ranged from 4.01 to 5.57 mg/L, 0.22 to 0.85 mg/L, and 0.58 to 2.66 ppm; respectively. Our results of sulfides and chromium analysis showed that it was over the threshold value for all stations studied. The concentration of ammonia in 3rd and 4th stations of Sail river and in 2nd, 3rd, and 4th stations of Air Hitam River was also over the threshold
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    ANALISIS KORELASI FORMALIN DAN PROTEIN PADA IKAN SELAR (Caranx leptolepis) DAN IKAN KAKAP MERAH (Lutjanus argentimaculatus)
    (2017-01-14) Rahmani, Linda; Hanifah, Tengku Abu; Kartika, Ganis Fia
    Fish is a food material that has high protein content, which cause fast decay by microorganism. Because of that, it needs a preservation process. One of preservative material used is formaline. Formaline is a chemical substance that used for fish preserving because it easy to find and has low cost. Qualitative analysis of formaline used potassium permanganate and chromatophic acid while quantitative analysis used High Performance Liquid (HPLC) and protein analysis used Kjeldahl method. The results showed that from 12 samples of fish all of the samples positive contains formaline which was 6.3352 - 12.2196 mg/Kg and protein in fish was 14.22 - 16.34%. The analysis result of formaline showed that some fish sample were exceed standard of International Program on Chemical Safety (IPCS) in 2002. Acoording to the research result there is no correlation between the content of protein on the fish.
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    ANALISIS KORELASI FORMALIN DAN PROTEIN PADA UDANG KELONG (Penaeus indicus) DAN UDANG PUTIH (Litopenaeus vannamei)
    (2017-01-09) Hartin, Alnilla; Anita, Sofia; Hanifah, Tengku Abu
    Shrimp is very easy to rot and has high protein. Formaline is commonly used to preservative food including sea food such as shrimp. As protein is splashed or bathed by formaline, the aldehyde from formaldehyde will bond the protein. The purpose of this study is to find out the correlation between formaline and protein in kelong shrimp (Penaeus indicus) and white shrimp (Litopenaeus vannamei) at sell in some Pekanbaru wet market. Qualitative analysis of formaldehyde was done using calium permanganate and chromotrophic acid and quantitative analysis was done using High Performance Liquid Chromatography method which derived using 2,4-dinitrophenylhydrazine, meanwhile protein analysis was done using Kjeldahl method. The formaldehyde content from samples was in range of 10 to 30 mg/Kg for kelong shrimp and 7 to 10 mg/Kg for white shrimp. The protein content for kelong shrimp was in range of 5 to 9 % and 7 to 10 % for white shrimp. Study showed that there are no correlation between formaline and protein in both samples, kelong shrimp and white shrimp.
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    ANALISIS RESIDU INSEKTISIDA, FOSFAT DAN KLORIDA PADA TANAMAN SAWI PUTIH (Brassica peckinensis L) DI PERKEBUNAN PADANG LAWEH SUMATERA BARAT
    (2016-05-02) Erlina; Itnawita; Hanifah, Tengku Abu
    Residues of three insecticides i.e diazinon, chlorpyrifos and profenofos that used in Padang Laweh field, West Sumatera for chicory (Brassica peckinensis L) has been analyzed by using Gas Chromatography. Concentration of phosphate was analysed by using UV-Visible spectrophotometric while argentometric Mohr was used to determine the concentration of chloride. Samples were washed using fresh and hot water. Phosphate and chloride concentration was determined in the washing water. The results showed that there was no insecticide residues (diazinon, chlorpyrifos and profenofos) found in samples of two farmers, while the third farmer has been found diazinon insecticide residues in sample without washing (0.0042 mg/Kg). Its value was low than the maximum residue limit (0.05 mg/Kg). The concentration of phosphate was in range of 2.7522 to 9.8165 ppm and from 3.2110 to 22.018 ppm in sample washed using fresh and hot water, respectively. Concentration of chloride was ranged from 0 to 0.2519 ppm and 0.1261 to 0.2519 ppm in samples washed with fresh and hot water, respectively.
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    KARAKTERISASI DAN KAPASITAS BIOSORPSI BUAH JABON PUTIH (Anthocephalus cadamba Miq.) PADA PENJERAPAN ION TIMBAL(II)
    (Elfitra, 2023-11) Ubaidah, Abu; Hanifah, Tengku Abu
    White jabon fruit (Anthocephalus cadamba Miq.) soaked in peat water which is rich in humic acid has the potential to be used as a biosorbent to adsorb lead(II) metal based on the cellulose content of jabon fruit and the active compounds contained in both. This research aims to determine the adsorption capacity and efficiency of white jabon fruit biosorbent in a batch system against lead(II) ions under optimum conditions as well as the appropriate adsorption kinetics and adsorption isotherm models. The optimum biosorbent conditions were determined by optimizing pH (4, 6, 8 and 10), contact time (20, 30, 40 and 50 minutes) and adsorbate concentration (80, 100, 120 and 140 mg/L). The surface morphology of the biosorbent before and after activation with NaOH (1:1, 1:2, 1:3, 1:4 and 1:5 w/w) was analyzed using SEM-EDS, while the functional groups of the biosorbent before and after the biosorption process were analyzed using FTIR. Determination of adsorption capacity and efficiency was analyzed using AAS. The results of the characterization of biosorbents in adsorbing iodine and methylene blue based on SNI 06-3730-1995 show that the best ratio of biosorbent: NaOH activator to activate biosorbents is a ratio of 1:3 (w/w). SEM-EDS results show that the biosorbent before activation contains the elements C, O, Na, Mg, Si, Pb, Cl, K, Ca and Cr while activation only includes the elements C, O, Na and Cl. Optimum conditions occurred at pH 6, contact time 40 minutes and adsorbate concentration 140 mg/L with adsorption capacity and efficiency respectively 6.6385 mg/g and 99.977%. The kinetic model of the biosorbent adsorption process follows pseudo second order kinetics with a rate constant of 0.00235 g/mg min (R2=0.9867) which indicates that the adsorption process involves a chemisorption mechanism. The adsorption isotherm model follows the Freundlich isotherm equation (R2=0.9862) which indicates that adsorption occurs on a heterogeneous surface.
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    POTENSI ARANG AKTIF BIJI ALPUKAT (Persea americana Mill) SEBAGAI ADSORBEN ION KADMIUM (II) DAN TIMBAL (II) DENGAN AKTIVATOR H2SO4
    (2016-05-02) Munawarah, Sri; Hanifah, Tengku Abu
    Utilization of avocado seed as activated carbon has been done. The activated carbon of avocado seed was made by carbonization at 400oC for ± 2 hours and chemical activation using H2SO4 with various concentration of 2.5; 5.0 and 7.5%. The characterization result showed that activation using 5.0% H2SO4 have a good characteristics with 3.68% of moisture content, 0.84% of ash content, 385.22 mg/g of iodine adsorption and 19.62 m2/g of surface area. Fourier Transform Infrared (FTIR) was used to determine the functional groups of activated carbon. The activated carbon was used to adsorb cadmium and lead ions. Concentration of cadmium and lead ions were analyzed using Atomic Absorption Spectrophotometer (AAS). Optimum adsorption of activated charcoal avocado seeds were obtained at 0.38 ppm for 97.11% of cadmium ions and at a concentration of 4.83 ppm for 97.92% of lead ions