PUTRI HANDAYANI, NAVRATY (2014) PENENTUAN KADAR NATRIUM BENZOAT DALAM SAMPEL MINUMAN YANG BEREDAR DI PASAR KOTA PADANG SECARA KROMATOGRAFI CAIR KINERJA TINGGI (KCKT. Other thesis, Fakultas matematika dan ilmu pengetahuan alam.
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Abstract
ABSTRACT DETERMINATION OF SODIUM BENZOIC IN BEVERAGES SAMPLE IN THE MARKET OF PADANG CITY WITH HIGH PERFORMANCE LIQUID CHROMATOGRAPHY (HPLC) By : Navraty Putri Handayani (0910413114) Yulizar Yusuf, MS* Bustanul Arifin, M.Si** Advised I* Advised ** The research about determination of sodium benzoic in beverages sample. The purpose was to know the concentration of sodium benzoic as preservative in beverages. The research use High Performance Liquid Chromatography (HPLC) reversed phased method. The optimum measure conditions by using C18 (250 mm x 4,6 mm) column, UV detector at 224 nm of wavelength, mobile phase methanol : water 70 : 30 and flow rate 0,45 mL/min. The count resulted the determination coefisien (R2) 0,9998, relative standar deviation counted based on peak area and retention time 0,18 % and 0,21 % respectively. LoD and LoQ were 0,1134 mg/L and 0,3740 mg/L and recovery was 107,84 %. From the seven sample analysis, the highest concentration of sodium benzoic was in D sampel 380,30 mg/L and the lowest concentration was in A sample 61,28 mg/L. Key note : Preservative, Sodium benzoic, HPLC.
| Item Type: | Thesis (Other) |
|---|---|
| Subjects: | Q Science > QD Chemistry |
| Unit atau Lembaga: | Fakultas MIPA > Kimia Paca Sarjana > Doktor > Fakultas MIPA > Kimia Fakultas MIPA > Kimia |
| Depositing User: | dhanie DR anie |
| Date Deposited: | 12 Apr 2014 04:50 |
| Last Modified: | 12 Apr 2014 04:50 |
| URI: | http://repository.unand.ac.id/id/eprint/20623 |
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