Browsing by Author "Fitriani"

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    ANALISIS RESIDU PESTISIDA ORGANOFOSFAT, KLORIDA DAN FOSFAT PADA TANAMAN SELEDRI (Apium graveolens L.) DI PERKEBUNAN PADANG LAWEH SUMATERA BARAT
    (2016-10-12) Fitriani, Eca; Fitriani; Bali, Subardi
    Pesticide residues for three kinds of active ingredient (diazinon, chlorpyrifos and profenofos) in celery (Apium graveolens L.) which have been taken from Padang Laweh Field, West Sumatera, were analyzed using Gas Chromatography. Results showed that were no pesticide residues found in all samples with or without washing. Concentration of phosphate and chloride ions in fresh and hot washing water was ranged from 2.6601 to 4.8890; 0 to 0.3760; 4.0640 to 32.6600 and 0.2280 to 0.4880 ppm, respectively.
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    STUDI AWAL PENGAKTIFAN KARBON MENGGUNAKAN RADIASI GELOMBANG MIKRO SEBAGAI BAHAN PENYERAP DARI KAYU EUCALYPTUS
    (2016-01-30) Fitriani; Awitdrus; Farma, Rakhmawati
    Activated Carbon (AC) has been successfully made from Eucalyptus wood by using conventional carbonization and chemical activation supported by microwave radiation. The weight ratio of carbon:potassium hydroxide is 1:0.5 and the power of microwave at 720 Watt with variation of irradiation time is of 10, 20, 30 and 40 minutes respectively. The microwave-induced potassium hydroxide activation affects the physical properties of AC. The yield of AC showed decreased with increasing time of irradiation. The microwave irradiation of 20 minutes resulted the higher iodine number. The pattern of X-ray diffraction showed that the AC has a turbostratic structure by the presence of diffraction peaks of (002) and (001). The BET surface area of AC for the irrradiation of 20 minutes and 40 minutes are 196.42 and 2.40 respectively.
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    Using Collaborative Strategic Reading (Csr) To Improve The Ability Of The Second Year Students Of Mts Babussalam Kuantan Singingi In Comprehending Narrative Texts
    (2013-01-09) Fitriani
    This study was entitled Using Collaborative Strategic Reading (CSR) to Improve the Ability of the Second Year Students of MTs Babussalam KUANTAN SINGINGI in Comprehending narrative Texts. The objective of this research was aimed to know whether the technique of Collaborative Strategic Reading (CSR) can improve the ability of the second year students of MTs Babussalam KUANTAN SINGINGI in comprehending narrative text. The subjects were 22 students from class VIII (B) at MTs Babussalam KUANTAN SINGINGI selected through the result of small survey . The study was divided into two cycles in which one cycle consisted of three meetings. Pre- and Post- tests were given including a set of observation sheets and field notes were used to gain the record of the classroom activity during the Collaborative Strategic Reading treatment. Treatments were designed for two meetings in each cycle. The analysis found that the treatments could reach the improvement of the students’ reading comprehension ability. It was reflected in the result of Post test II. There were about 81.8% of the students could achive the minimum passing score (KKM) of English subject in reading comprehension. In addition, the percentage of students’ activeness was also improved from the first to the last meetings. Moreover, the result of observation sheets and field notes showed a positive behavior in a process of learning and it also helped students improve their reading comprehension ability and more active in learning process.
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    Zooplankton Abundance in pond bottom soil red-yellow podzolic (PMK) container based on age grouping with Liming CaCO3
    (2013-06-27) Fitriani
    This research was conducted from October until November 2012 at Environmental Quality Cultivation Laboratory Fisheries and Marine Science Faculty of Riau University. The purpose of this study was to determine the abundance of zooplankton in the red-yellow podzolic soil (PMK) with Liming. The research method used was experimental method and RAL the alienation between experiment without liming (I) and with liming (II). According to the needs of liming appropriate table Boyd (1979) is : O1 (age pond of 0 – 5 years old), O2 (age pond of 6 – 10 years old), O3 (age pond of 11 – 15 years old), O4 (age pond of 16 – 20 years old). The results showed that there were 10 species of zooplankton of 4 species of Protozoa, 1 species of Rotatories, 3 species of Crustacean and 2 species Insect respectively. The peak abundance population was reached at 10th day for trial I, whereas in trial II at 2th day. Highest abundance on trial II was on treatment O4 (16 – 20 years old) was 37.509 in/l, and the lowest was on treatment O4 (16 – 20 years) of 25.833 ind/l. Water temperature 26-320C, pH (7,1-7,3), DO 3,02-3,49 mg/l, nitrate 0,23-0,30 mg/l.