eprintid: 43262 rev_number: 10 eprint_status: archive userid: 12316 dir: disk0/00/04/32/62 datestamp: 2021-08-10 03:12:32 lastmod: 2021-08-10 03:12:32 status_changed: 2021-08-10 03:12:32 type: thesis metadata_visibility: show creators_name: Nadia Rahmaningrum, NIM.: 16620032 title: ANALISIS TAHU TERKONTAMINASI FORMALIN MENGGUNAKAN SISTEM SPEKTROSKOPI FLUORESENSI BERBASIS HIGH POWER UV-LED ispublished: pub subjects: F divisions: jur_fis full_text_status: restricted keywords: nalysis, tofu, formalin, fluorescence spectroscopy system, high power UVLED. note: Pembimbing : 1. Frida Agung Rakhmadi, S.Si., M.Sc ; 2. Dr. Imelda Fajriati, M.Si abstract: This research was motivated by the discovery of white tofu preserved using formalin. This study aimed to analyze formalin contaminants in tofu and determine the precision and detection limits of a fluorescence spectroscopy system based on high power UV-LED. This research was conducted in three stages, namely making samples, collecting data, and processing data. The sample was made directly in the tofu factory with the owner and the object used in this study is white tofu which was given a variation of formalin contaminants 0%-50%. Data were collected using a set of fluorescence spectroscopy system based on high power UV-LED that is connected to software LabVIEW and each foreign formalin contaminant test in tofu used five samples with three repetitions for each sample. Data processing to obtain bin values ​ ​ for each a variation of formalin contaminant was carried out using Microsoft Excel, moreover to find a value of precision and a detection limit . This research has successfully analyzed formalin contaminants in tofu using a fluorescence spectroscopy system based on high power UV-LED with a precision test result of 100% and a detection limit of 12.05%. date: 2020-12-17 date_type: published pages: 116 institution: UIN SUNAN KALIJAGA YOGYAKARTA department: FAKULTAS SAINS DAN TEKNOLOGI thesis_type: skripsi thesis_name: other citation: Nadia Rahmaningrum, NIM.: 16620032 (2020) ANALISIS TAHU TERKONTAMINASI FORMALIN MENGGUNAKAN SISTEM SPEKTROSKOPI FLUORESENSI BERBASIS HIGH POWER UV-LED. Skripsi thesis, UIN SUNAN KALIJAGA YOGYAKARTA. document_url: https://digilib.uin-suka.ac.id/id/eprint/43262/1/16620032_BAB-I_IV-atau-V_DAFTAR-PUSTAKA.pdf document_url: https://digilib.uin-suka.ac.id/id/eprint/43262/2/16620032_BAB-II_sampai_SEBELUM-BAB-TERAKHIR.pdf