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All Journal International Journal of Nursing and Midwifery Research
Raisani Rusli
Universitas Islam Negeri (Uin) Syarif Hidayatullah
Dentistry Health Professions Medicine & Pharmacology Nursing Public Health Veterinary

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Determination of borax content in wet noodles circulating in market by uv-vis spectrophotometry method using curcumin reagent Raisani Rusli
International Journal of Nursing and Midwifery Research Vol. 1 No. 1 (2022): November: Nursing and Midwifery Research
Publisher : Institute of Accounting Research and Novation (IARN)

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Abstract

The determination of borax contains in wet noodles done by curcumin reagent as color regent which produced rosocyanin complexes and monitor by using UV-Vis spectrophotometry in maximum wave length at 545.95 nm. Before it was used in a sample which was taken from Ciputat market, this method was validated. The results showed that calibration curve in linear 6.25-50 µg/ml with regression equal y = 0.008 + 0.012x and correlation coefficient (r) = 0.9994. this method gave detection limit at 3.1132 µg/ml and qualification limit at 10.3775 µg/ml. The simulation recovery of wet nodles was 99.767 ± 1.114 %. The result of examination of wet noodles sample which was marketed in Ciputat market that four of five contained 3.76112 ± 0.0451, 108.592 ± 0.02185, 117.9461 ± 0.01455, and 6.275 ± 0.0221 borax.
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