MAULANI, RIKA DEWI (2019) ANALISIS CEMARAN LOGAM TIMBAL (Pb) PADA RAJANGAN TEMULAWAK (Curcuma xanthorrhiza Roxb.) YANG BEREDAR DI KOTA PURWOKERTO DENGAN METODE SPEKTROFOTOMETRI SERAPAN ATOM. Bachelor thesis, UNIVERSITAS MUHAMMADIYAH PURWOKERTO.
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Abstract
Chopper is a raw material for herbal medicine that has been widely used by the people. The purpose of this research was to find out the presence of lead (Pb) metal contamination in chopped curcuma in Purwokerto. Preparation of samples was carried out by wet destruction and the results were measured using an atomic absorption spectrophotometer with a wavelength of 283.3 nm. The validation result show that the correlation coefficient (r) is close to 1, which is 0.9916. The relative standard deviation (RSD) value on precision test is 0.0006%. The result of % recovery is ± 97.35%. The results of detection limits and quantitation limits are 0.3987 and 1.3291 ppm. Application of the method for analysis of 4 chopped curcuma sample there was no lead contamination detected.
| Dosen Pembimbing: | Utami, Pri Iswati and Hakim, Zainur Rahman | unspecified |
|---|---|
| Item Type: | Thesis (Bachelor) |
| Uncontrolled Keywords: | Lead contamination, curcuma, wet destruction, atomic absorption spectrophotometry |
| Subjects: | R Medicine > RS Pharmacy and materia medica |
| Divisions: | Fakultas Farmasi > Farmasi S1 |
| Depositing User: | Dan Kh |
| Date Deposited: | 30 May 2022 03:39 |
| Last Modified: | 11 Nov 2024 02:12 |
| URI: | http://repository.ump.ac.id/id/eprint/11720 |
