Academic literature on the topic 'Fotometer'
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Journal articles on the topic "Fotometer"
Nelfyenny, Nelfyenny, Wiwin Farhania, Yonan Prihhapso, and Dini Suryani. "EFEKTIFITAS PENGUKURAN LINEARITAS DETEKTOR OPTIK MENGGUNAKAN METODE DOUBLE SOURCE PADA FOTOMETER STANDAR B310." Jurnal Standardisasi 18, no. 2 (May 11, 2018): 149. http://dx.doi.org/10.31153/js.v18i2.707.
Full textDwiputri, Adelia Yuni, Febi Indah Fajarwati, and Bethy C. Matahelumual. "VALIDASI PENENTUAN KALIUM (K) DALAM SAMPEL AIR MENGGUNAKAN FLAME FOTOMETER." INDONESIAN JOURNAL OF CHEMICAL RESEARCH 6, no. 1 (August 10, 2021): 23–31. http://dx.doi.org/10.20885/ijcr.vol6.iss1.art3.
Full textMatondang, Silvia Elastari, Suriati Nilmarito, and Elsa Febrina. "Analisis Protein Ulat Sagu (Rhynchophorus Ferruginenus) Sebagai Pemanfaatan Sumber Zat Nutrisi Dengan Metode Kjhdel, Spektrofotometri Dan Sds (Sodium Dodecyl Sulfate Polyacrilamdegell Electrophoresis)." LAVOISIER: Chemistry Education Journal 1, no. 1 (July 11, 2022): 35–40. http://dx.doi.org/10.24952/lavoisier.v1i1.5454.
Full textSophian, Alfi, and Yustina Yustina. "Analisis Nilai Kemurnian DNA Menggunakan Nano Fotometer pada Rasio 260/230 yang Diisolasi dari Produk Nugget." Muhammadiyah Journal of Nutrition and Food Science (MJNF) 3, no. 2 (January 31, 2023): 82. http://dx.doi.org/10.24853/mjnf.3.2.82-86.
Full textPrihhapso, Yonan, Nelfyenny Nelfyenny, Dini Suryani, and Wiwin Farhania. "SIMULASI MONTE CARLO MENGGUNAKAN PEMROGRAMAN R UNTUK MENENTUKAN KOREKSI KETIDAKCOCOKAN PADA FOTOMETER BERDASARKAN INDEKS KETIDAKCOCOKAN LAZIM." Instrumentasi 46, no. 1 (November 28, 2022): 21. http://dx.doi.org/10.31153/instrumentasi.v46i1.233.
Full textFauziah, Fitra, Diah Witari, and Widya Kardela. "AKTIVITAS ANTIHIPERURISEMIA FRAKSI EKSTRAK ETANOL DAUN BELIMBING WULUH (Averrhoa bilimbi L.) PADA MENCIT HIPERURISEMIA." JOPS (Journal Of Pharmacy and Science) 4, no. 2 (June 18, 2020): 27–32. http://dx.doi.org/10.36341/jops.v4i2.1352.
Full textDewi, Evie Kurnia Maya, Daud K. Walanda, and Sri Mulyani Sabang. "Pengaruh Ekstrak Seledri (Apium graveolens L.) Terhadap Kelarutan Kalsium Dalam Batu Ginjal." Jurnal Akademika Kimia 5, no. 3 (March 21, 2017): 127. http://dx.doi.org/10.22487/j24775185.2016.v5.i3.8046.
Full textRefi, Maria Agustina Fitriayu, Ni Putu Rahayu Artini, and Ayu Saka Laksmita W. "ANALISIS KADAR SGPT DAN ALP PADA PENGUKIR KAYU DI DESA KUWUM ANCAK, KECAMATAN MARGA, KABUPATEN TABANAN." JURNAL WIDYA BIOLOGI 12, no. 01 (April 5, 2021): 67–76. http://dx.doi.org/10.32795/widyabiologi.v12i01.1325.
Full textFendri, Sandra Tri juli. "Uji Toksisitas Sub Akut Hasil Degradasi Parasetamol Dengan Menggunakan Gabungan Lampu UV 253 nm dan 352 nm Pada Mencit Jantan Putih." SCIENTIA : Jurnal Farmasi dan Kesehatan 11, no. 1 (February 25, 2021): 1. http://dx.doi.org/10.36434/scientia.v11i1.245.
Full textJamaluddin, Jamaluddin, Gugun Gunawan, Siti Nurhafsah, Padhlun A. Jerni, Dytha Okvhyanitha, Ade Fazliana Mantika, Jessica Jessica, Asty Ivon Samaliwu, Yusriadi Yusriadi, and Agustinus Widodo. "Kadar Albumin Pada Ikan Sidat Anguilla marmorata Q Gaimard dan Anguilla bicolor Asal Sungai Palu dan Danau Poso." Ghidza: Jurnal Gizi dan Kesehatan 4, no. 1 (July 29, 2020): 60–68. http://dx.doi.org/10.22487/ghidza.v4i1.37.
Full textDissertations / Theses on the topic "Fotometer"
Fonseca, Alexandre. "Desenvolvimento de um fotometro multicanal baseado em um arranjo de diodos emissores de luz." [s.n.], 2004. http://repositorio.unicamp.br/jspui/handle/REPOSIP/250550.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Quimica
Made available in DSpace on 2018-08-03T23:37:37Z (GMT). No. of bitstreams: 1 Fonseca_Alexandre_M.pdf: 4881892 bytes, checksum: d599bf04477ca6e92ad2635eabe7f523 (MD5) Previous issue date: 2004
Mestrado
Bělicová, Marie. "Porovnání analytických metod ČSN vůči metodám US EPA při rozboru vodných vzorků." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2010. http://www.nusl.cz/ntk/nusl-216577.
Full textChagas, Ismael Pereira. "Desenvolvimento de um fotometro portatil NIR para determinação do teor de agua no alcool combustivel e do teor de etanol na gasolina." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/250572.
Full textTese (doutorado) - Universidade Estadual de Campinas, Instituto de Quimica
Made available in DSpace on 2018-08-07T20:00:15Z (GMT). No. of bitstreams: 1 Chagas_IsmaelPereira_D.pdf: 2025832 bytes, checksum: 8e2e4a99a15486f48f4aae44dfd6f183 (MD5) Previous issue date: 2006
Resumo: Neste trabalho, foi desenvolvido um fotômetro NIR portátil para determinar o teor de água em álcool combustível hidratado combustível (AEHC) e o teor de etanol (Álcool etílico anidro carburente) em gasolina. Foram realizados inicialmente estudos espectroscópicos empregando um espectrofotômetro comercial para avaliar quais as melhores regiões do espectro NIR que poderiam ser empregadas para a determinação das espécies de interesse. No desenvolvimento do instrumento foram avaliados detetores baseados em um foto resistor de PbS e um fotodiodo de InGaAs. Dentre os detectores empregados o que apresentou melhores resultados foi o detector de InGaAs. Foram construídos diversos fotômetros sendo que aqueles que apresentaram as melhores performance utilizaram filtro de interferência em 1480 nm e celas cilíndricas com caminho óptico de 2 mm e 5 mm. Para o caminho óptico de 2 mm, foi utilizada como fonte de radiação uma lâmpada de 6 watts, enquanto que para a cela com 5 mm foi utilizada uma lâmpada de tungstênio de 20 watts e uma lente colimadora. Em ambos os casos, a fonte de radiação foi pulsada a uma freqüência de 25 Hz. Como transdutores de saída do instrumento foram empregados um microcontrolador PIC acoplado à um display de cristal líquido e também dois LEDs (vermelho e verde) indicando se o combustível estava dentro ou fora da especificação. O instrumento foi avaliado com amostras comerciais de álcool combustível e gasolina. Para a determinação do teor alcoólico em álcool combustível, a resposta é linear na faixa de concentração de 88 a 98% m/m, com um erro médio de 3,6 % para um total de 30 amostras analisadas, quando comparada ao seu respectivo método de referência. Na análise de amostras de gasolina foi obtida uma resposta linear para o teor de etanol entre 20 % e 30 %, com um erro médio de 3,0% para um total de 40 amostras analisadas. A ANP considera até 4% de erro médio e desta forma o instrumento classifica corretamente 100 % das amostras
Abstract: In this work a portable Near Infrared Photometer to determine the quantity of water in alcohol fuel and the quantity of ethanol in gasoline was developed. Initially, several spectroscopy analysis using a comercial spectrophotometer was made to select the best wavelenghts to determine those fuel quality parameters. The wavelengths of 1480 nm and 1920 nm were selected after preliminary study. The instrument was evaluated using two types of detectors: a PbS photoresistive detector and a InGaAs photodiode. The detector with best performance was the InGaAs photodiode. Different prototypes were built using a interference filter working in 1480 nm and path length with 2 mm and 5 mm. With the 2 mm path length was used a 6 watt tungsten lamp as radiation source and with 5 mm path length was used a 20 watts tungten lamp. This interference filter can be used to determine water in alcohol fuel and ethanol in gasoline without any changes in the instrument. The final version of the prototype showing the best results for both determinations uses a cilindric cell with 5 mm diameter and can be employed for flow or batch measurements, radiation source of a 20 watts tungsten lamp pulsed at 25 Hz and a lens to focus the infrared radiation into the detector. The output transducers of the instrument was a PIC microcontroller with a liquid crystral display and light emission diodes (LEDs) green and red. The instrument was tested using comercial fuel alcohol and gasoline samples. In the determination of water in alcohol it was obtained a linear response in the concentration range from 98 to 88 % (m/m) and in gasoline, it was 20 % to 30 %(v/v). Thirty alcohol samples were analysed showing a standard error of 3,6 % while for the gasoline, a standard error of 3,0% for a total of 40 samples analysed was found. Considering the tolerance of 4%, recommended by the National Pretoleum Agency (ANP), the instrument can classify normal and adultered samples with confidence of 100%
Doutorado
Quimica Analitica
Doutor em Quimica
Book chapters on the topic "Fotometer"
Perego Junior, Domingos, Alberto Noboru Miyadaira, Oldair Donizeti Leite, Gabriela Dias Alba, Eduardo Cezar Lenz, and João Pedro de Araújo Nespolo. "DESENVOLVIMENTO DE UM FOTOMETRO MICROCONTROLADO PARA ANÁLISE DE SUBSTÂNCIAS." In Engenharia Elétrica: Comunicação Integrada no Universo da Energia, 103–11. Atena Editora, 2021. http://dx.doi.org/10.22533/at.ed.3732123029.
Full textConference papers on the topic "Fotometer"
Tsarev, V. P., and V. V. Antonov. "Interference microwave fotometers of optical radiation parameters." In 2010 International Conference on Actual Problems of Electron Devices Engineering (APEDE 2010). IEEE, 2010. http://dx.doi.org/10.1109/apede.2010.5624110.
Full textPrišaitė, Indrė, Lina Bagdžiūnaitė-Litvinaitienė, and Andrius Litvinaitis. "BIOGENINIŲ MEDŽIAGŲ SRAUTŲ, PATENKANČIŲ Į EŽERUS PER Į JUOS ĮTEKANČIAS UPES, KANALUS IR GRIOVIUS, ANALIZĖ." In 24-oji jaunųjų mokslininkų konferencijos „Mokslas – Lietuvos ateitis“ teminė konferencija APLINKOS APSAUGOS INŽINERIJA. Vilniaus Gedimino Technikos Universitetas, 2020. http://dx.doi.org/10.3846/aainz.2021.17.
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