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All Journal TechLINK: Jurnal Ilmiah Lingkungan Sinergi: Jurnal Pengabdian Kepada Masyarakat
Sapta Dewi, Yusriani
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Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Education Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Public Health Social Sciences

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VALIDASI METODE PENENTUAN MINYAK DAN LEMAK PADA AIR DENGAN FOURIER TRANSFORM INFRA-RED (FTIR) DI PT. KEHATILAB INDONESIA Suyono, Hadi; Sapta Dewi, Yusriani
JURNAL TECHLINK Vol 8 No 1 (2024)
Publisher : Fakultas Teknik - Universitas Satya Negara Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59134/jtnk.v8i1.654

Abstract

This study has been conducted to validate the method of determining oil and fat in water with fourier transform infra-red (FTIR) type L1600100 spectrum two serial number 123010. This study aims to determine the method of oil and fat analysis using fourier transform infra-red (FTIR) can measure oil and fat levels up to 1 mg / l. The results obtained were compared with the acceptance requirements obtained. The results obtained were compared with the acceptance requirements set by PT Kehatilab Indonesia so that it can be used for routine analysis. Based on the experiments that have been carried out for the linearity test, the coefficient of determination (R2) value is 0.9996. The accuracy test obtained a %recovery value of 98.20% with a range value of (96.29 - 100.54)%. The precision test obtained a %RSD value of 1.48%. LoQ (Limit of Quantity) test obtained a value of 0.5 mg/l. MDL (Method Detection Limit) test obtained a value of 0.2 mg / l. The repeatability test obtained a %RSD value of 4.22% for low levels, 4.85% for medium levels and 3.01% for high levels. The reproducibility test obtained a %RSD value of 4.24% for low levels, 4.21% for medium levels and 3.71% for high levels. All test parameters have met the acceptance requirements so that the method of determining oil and fat content in water with fourier transform infra-red (FTIR) can be used for routine analysis at PT Kehatilab Indonesia.
SOSIALISASI PENGHITUNGAN TIMBULAN SAMPAH DI KAWASAN GELANGGANG OLAHRAGA BUNG KARNO, JAKARTA PUSAT Sapta Dewi, Yusriani; -, Nurhayati; Priambodo, Agung; Rengga Saputra, Dicky Uzazi
JURNAL SINERGI Vol. 5 No. 2 (2023): SINERGI
Publisher : FT-USNI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59134/sinergi.v5i2.597

Abstract

Masalah sampah sering dijumpai di berbagai wilayah, baik wilayah permukiman, perkotaan, pedesaan, maupun perindustrian. Jika masalah sampah tidak ditangani dengan benar, dapat menimbulkan masalah yang serius bagi lingkungan dan manusia. Permasalahan sampah merupakan hal yang krusial. Bahkan dapat dikatakan sebagai masalah kultural. Hutan Kota GBK juga menawarkan berbagai aktivitas yang dapat dilakukan oleh pengunjung. Kegiatan ini tentunya akan menimbulkan dampak sampingan, di antaranya timbulan sampah, timbulan guguran daun. Timbulan sampah dan timbulan guguran daun ini, sehingga perlu sosialisasi dan pelatihan untuk pengelolaan timbulan sampah tersebut.
Co-Authors Agung Priambodo Hadi Suyono Nurhayati - Rengga Saputra, Dicky Uzazi