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All Journal E-Journal Home Economic and Tourism Jurnal Akuntansi AKUNESA Jurnal Sains dan Teknologi Health Notions International Journal of Natural Science and Engineering Jurnal Kesehatan Jurnal Pusat Inovasi Masyarakat The South East Asian Journal of Management JURNAL PENGABDIAN PENDIDIKAN MASYARAKAT (JPPM) JURNAL MUARA PENDIDIKAN JURNAL TUNAS PENDIDIKAN Dhabit : Jurnal Pendidikan Islam
Nur Habibah
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Religion Humanities Computer Science & IT Dentistry Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Library & Information Science Mathematics Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Journal : Jurnal Sains dan Teknologi

 1 
A SIMPLE SPECTROPHOTOMETRIC METHOD FOR THE QUANTITATIVE ANALYSIS OF PHOSPHATE IN THE WATER SAMPLES Habibah, Nur; Dhyanaputri, I Gusti Ayu Shri; Karta, I Wayan; Sundari, Cokorda Dewi Widhya Hana; Hadi, Mochammad Choirul
JST (Jurnal Sains dan Teknologi) Vol 7, No 2 (2018)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (198.644 KB) | DOI: 10.23887/jst-undiksha.v7i2.13940

Abstract

A simple spectrophotometric method was used to determine the phosphate content in the water sampels. The method is based on the formation of molybdenum blue complex from the reaction of orthophosphate and ammonium molybdate followed by reduction with ascorbic acid in the aqueous sulfuric acid medium. The color intensity of the molybdenum blue complex is proportionally to the phosphate content in the solution. The system obeys Lamber-Beer’s Law at the 890 nm in the concentration range of 0.1-1 mg P/L and the linier calibration graph was obtained with the slope, 0.6334, intercept, 0.0074 and correlation coefficient of 0.9988. This official method was also used for the quantitative analysis of phosphate in the water samples and the satisfactory result was obtained. The range of phosphate concentration in the water samples are 0.033 – 2.943 mg P/L.
UJI DAYA HAMBAT BERBAGAI KONSENTRASI PERASAN JERUK LEMON TERHADAP BAKTERI Propionibacterium acnes Dewi, Kadek Eliana Kesuma; Habibah, Nur; Mastra, Nyoman
JST (Jurnal Sains dan Teknologi) Vol 9, No 1 (2020)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (121.28 KB) | DOI: 10.23887/jst-undiksha.v9i1.19216

Abstract

Propionibacterium acnes merupakan salah satu bakteri yang menyebabkan terjadinya jerawat. Salah satu cara untuk mengatasi jerawat yaitu dengan memanfaatkan buah jeruk lemon. Beberapa penelitian terdahulu melaporkan bahwa jeruk lemon memiliki kandungan bahan aktif, antara lain karotenoid dan flavonoid  yang memiliki aktivitas antibakteri. Penelitian ini bertujuan untuk mengetahui kemampuan daya hambat berbagai konsentrasi perasan jeruk lemon terhadap pertumbuhan bakteri Propionibacterium acnes. Penelitian ini merupakan eksperimen murni dengan rancangan penelitian Posttest Only Control Design menggunakan metode difusi cakram Kirby Bauer dengan enam konsentrasi perasan buah jeruk lemon  yaitu 5, 12,5, 25, 50, 75, dan 100%. Kontrol kerja yang digunakan adalah kloramfenikol 30µg dan kontrol negatifnya adalah akuades steril. Hasil penelitian menunjukkan bahwa perasan buah jeruk lemon mampu menghambat pertumbuhan bakteri Propionibacterium acnes dengan rerata zona hambat berturut-turut yaitu sebesar 7,15; 9,20; 11,25; 12,50; 14,10 dan 16,90 mm dan termasuk ke dalam kategori zona hambat sedang dan kuat. Berdasarkan hasil penelitian yang diperoleh, dapat disimpulkan bahwa masing-masing konsentrasi perasan jeruk lemon memiliki kemampuan yang berbeda-beda terhadap pertumbuhan Propionibacterium acnes.
ANALISIS KADAR TIMBAL (Pb) PADA AIR SUMUR GALI DI KAWASAN TEMPAT PEMBUANGAN AKHIR SAMPAH BANJAR SUWUNG BATAN KENDAL DENPASAR SELATAN Handriyani, Kadek Ayu Tia Surya; Habibah, Nur; Dhyanaputri, I Gusti Ayu Sri
JST (Jurnal Sains dan Teknologi) Vol 9, No 1 (2020)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (215.811 KB) | DOI: 10.23887/jst-undiksha.v9i1.17842

Abstract

AbstractFinal Waste Disposal Area at Suwung, Denpasar is one of the final waste disposal area that uses an open dumping system for the waste management techniques. These waste management techniques cause the lack of the groundwater quality. On the other hand, this groundwater is still being used as a main water source by the residents around the final waste disposal area. The aim of the study was to determine of the lead concentration in the well water at the Suwung Waste Disposal Area. This research uses descriptive method with observational approach while the analysis of lead was conducted by using atomic absorption spectrophotometry (AAS). Based on the results, it is proved that there is 1 sample contains of the lead concentration more than maximum allowable of lead according to the Minister of Health of Indonesia No. 416/MENKES/PER/IX/1990. The excess of lead concentration in the water samples may influenced by the distance of the dug wells from waste disposal area which does not meet the requirements, so the pollution occur easily.Keywords: Final waste disposal area, lead determination, atomic absorption spectrophotometry (AAS)
EFEKTIVITAS BERBAGAI UMPAN PERANGKAP LALAT DI PASAR IKAN DAN PASAR TRADISIONAL Hadi, Mochammad Choirul; Sujaya, I Nyoman; Habibah, Nur
JST (Jurnal Sains dan Teknologi) Vol 11, No 1 (2022)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jst-undiksha.v11i1.41477

Abstract

The benefits of Methyl eugenol, a chemical used as an attractant, especially for fruit flies were interesting to develop. This study aimed was to compare flies that enter fly traps fed with Methyl eugenol, Methyl pyrazine, fish innards, and chicken innards. This research was a quasi-experimental type to examine the effectiveness of bait with four treatment groups. The bait was installed on fly traps made by the Research Team, which were placed at the Kedonganan Fish Market, Kuta, and the Phula Kerti Traditional Market, Denpasar. Each bait is placed in five different fly traps, or in a day 40 units are installed in both markets. The results show that there are different types of trapped flies. In the Fish Market, the most common types of flies are House flies (Musca domestica), while in the Traditional market there are many types of fruit flies (Bactrocera sp). The baits that flies prefer are also different, Musca domestica prefer chicken innards bait, while fruit flies prefer Methyl eugenol bait.
Co-Authors Ahmad Ridhoh aldino aldino Arjani, I A Made Sri Cenby Rosella Agustin Ellbas Cokorda Dewi Widhya Hana Sundari Dewa Ayu Agustini Posmaningsih Dewi, Kadek Eliana Kesuma Dewi, Ni Km Ayu Kusuma Dewi, Ni Nyoman Astika Gusril Ihza Saputra Handriyani, Kadek Ayu Tia Surya Heri Setiyo Bekti I Gusti Ayu Sri Dhyanaputri I Nyoman Jirna, I Nyoman I Wayan Astika I Wayan Jana I Wayan Karta Kasmita Kasmita Lely Ika Mariyati Lestari, Renda Levandra Balti mastra, nyoman Mochamad Choirul Hadi Oktavia, Diana Pradnya Yasa, Ni Putu Candra Dewi Putri Nadila Aswa Rakhmawati, Aprilia Ratih Dyah Kusumastuti Reni Guswita Ridho Kurniawan Rinawati, Luh Putu Rindi, Oktavelendi Dhaneta Graha Savitri, Ni Putu Ayu Dani Sudarmanto, I Gede Sujaya, I Nyoman Vinenthy, Luh Putu Intan Visva WINDA TRISNAWATI Yuliana Yuliana