Sinaga, Marudut and Simanungkalit, Betaria and Situmorang, Manihar (2013) PENGEMBANGAN SENSOR KIMIA UNTUK MONITORING PENGAWET BENZOAT DI DALAM BERBAGAI JENIS MINUMAN. Jurnal Penelitian Saintika, 13 (01). pp. 1-9. ISSN 1412-2995
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Abstract
The development of chemical sensor for monitoring of food
preservatives of bezoic acid in various types of beverages is explained. The ensor was developed by the integration of spectrometric cell, UV detector in UV-Vis spectrometric system. The sensor signal is obtained from the measurement of bozoic acidic at il 229.65 nm. The chemical sensor give sensitive response to benzoic acid, where the detection linierity is lies beween 0.05 - 40 ppm benzoic acid, slope slop 0.0613 au/ppm benzoic acid, and the detection limit is 0.01 ppm benzoic acid. The chemical sensor has been applied for the determination of bezoic acid in real sample, where the concentration of benzoic acid in the bevereges are found in the range of
7 - 700 ppm benzoic acid. The measurements obtained with chemical sensor are agree with that HPLC standard method (R2 = 0.932).
| Item Type: | Article |
|---|---|
| Keywords: | Sensor kimia; Pengawet benzoat; Spektrometri; Minuman |
| Subjects: | Q Science > QD Chemistry > QD450 Physical and theoretical chemistry Q Science > QD Chemistry > QD71 Analytical chemistry T Technology > TP Chemical technology |
| Divisions: | Fakultas Matematika dan Ilmu Pengetahuan Alam > Kimia |
| Depositing User: | Mrs Harly Christy Siagian |
| Date Deposited: | 15 Apr 2019 10:33 |
| Last Modified: | 15 Apr 2019 10:33 |
| URI: | https://digilib.unimed.ac.id/id/eprint/35301 |
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