Ahmad, Chaidar (2018) Karakterisasi sensor Quartz Crystal Microbalance (QCM) dengan pelapisan membran lipid octadecylamine pada elektroda perak terhadap respon monosodium glutamat. Undergraduate thesis, Universitas Islam Negeri Maulana Malik Ibrahim.
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Abstract
INDONESIA:
Sensor Quartz Crystal Microbalance (QCM) merupakan salah satu jenis sensor yang bisa digunakan untuk mendeteksi rasa, salah satunya rasa umami. Umami adalah rasa gurih yang didapatkan dari kandungan asam amino glutamat atau disebut Monosodium Glutamat (MSG). MSG memiliki manfaat dalam proses pencernaan protein, tetapi mengkonsumsi MSG secara berlebih menyebabkan berbagai penyakit sehingga dibutuhkan sensor QCM untuk mendeteksi kadar penggunaan MSG. Penelitian ini bertujuan untuk menentukan karakteristik sensor melalui deteksi limit, respon dinamik, dan sensitifitas sensor. Metode yang dilakukan yaitu sampel MSG (0-1500 mM, interval 100 mM) diletakkan ke dalam open QCM dan dijalankan software data logger selama 5 menit (steady state) sehingga muncul frekuensi sebagai output. Data yang sudah diperoleh, diplot grafik untuk memperoleh deteksi limit, respon dinamik, dan sensitifitas sensor. Deteksi limit sensor QCM pada elektroda perak murni dikonsentrasi 300 mM. Deteksi limit sensor QCM pada elektroda perak yang dilapisi membran dikonsentrasi 700 mM. Respon dinamik pada sensor QCM pada elektroda perak murni berada pada waktu steady state 12 s. Respon dinamik pada sensor QCM pada elektroda perak yang dilapisi membran berada pada waktu steady state 9 s. Sensor QCM pada elektroda perak murni memiliki nilai sensitifitas sebesar 1280,8 Hz/mM. Sensor QCM pada elektroda perak yang dilapisi membran memiliki nilai sensitifitas sebesar 6561,7 Hz/mM.
ENGLISH:
Quartz Crystal Microbalance (QCM) sensor is one type of sensor that can be used to detect flavors, one of them is the taste of umami. Umami is a savory taste that is obtained from the amino acid content of glutamate or called Monosodium Glutamate (MSG). MSG has benefits in the process of protein digestion, but consuming MSG excessively causes a variety of diseases so that the QCM sensor is needed to detect levels consumption of MSG. This study aims to determine the characteristics of sensors through limit detection, dynamic response, and sensor sensitivity. The method used is the MSG sample (0-1500 mM, interval 100 mM) placed into the open QCM and software data logger is run for 5 minutes (steady state) so that the frequency appears as output. Data that has been obtained, plotted graphs to obtain limit detection, dynamic response, and sensor sensitivity. Detection of QCM sensor limits on pure silver electrodes concentrated at 300 mM. Detection of QCM limit sensors on silver electrodes coated with membranes is concentrated at 700 mM. The dynamic response on the QCM sensor on pure silver electrodes is steady state at 12 s. The dynamic response on the QCM sensor on the silver electrode coated with the membrane at 9 s steady state time. The QCM sensor on pure silver electrodes has a sensitivity value 1280.8 Hz / mM. QCM sensors on silver electrodes coated with membranes have a sensitivity value 6561.7 Hz / mM.
Item Type: | Thesis (Undergraduate) | |||||||||
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Supervisor: | Tazi, Imam and Syarifah, Umaiyatus | |||||||||
Contributors: |
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Keywords: | Sensor Quartz Crystal Microbalance (QCM); Monosodium Glutamat (MSG); Deteksi Limit; Respon Dinamik; Sensitifitas Sensor; Limit Detection; Dynamic Response; Sensor Sensitivity | |||||||||
Departement: | Fakultas Sains dan Teknologi > Jurusan Fisika | |||||||||
Depositing User: | Heni Kurnia Ningsih | |||||||||
Date Deposited: | 09 May 2019 09:40 | |||||||||
Last Modified: | 09 May 2019 09:40 | |||||||||
URI: | http://etheses.uin-malang.ac.id/id/eprint/14190 |
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