Analysis of Metal Copper Concentration at Candy using Atomic Absorption Spectrophotometry (AAS)

E. Rahmawati, D. C. Dewi, A. Fasya, B. Fauziyah
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Abstract

Candy sold in the market could be containing a heavy metals like copper. In this study, candy was destructed with HNO3, HNO3/H2SO4 (3:1) dan HNO3/H2SO4/H2O2 (6:2:1) to know the best matter oxidixer for copper. Then, evaluated the levels of copper using Atomic Absorption Spectrophotometer (AAS). The one way anove result with F test showed that the best oxidizer for copper in candy is HNO3/H2SO4. The average concentration of Copper in candy coded A, B, C, D, and E were 1. 72 mg/Kg; 1.69 mg/Kg; 1.57 mg/Kg; 1.71 mg/Kg; and 1.69 mg/Kg respectively. The content of copper in candies were the under daily dietary recommended limit based on SNI regulation. Key Words: Atomic Absorption Spectrophotometry, candy, matter oxidizer, time stability, wet destruction
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原子吸收分光光度法分析糖果中金属铜的浓度
市场上出售的糖果可能含有铜等重金属。本研究以HNO3、HNO3/H2SO4(3:1)和HNO3/H2SO4/H2O2(6:2:1)对糖果进行破坏,以确定铜的最佳物质氧化剂。然后,用原子吸收分光光度计(AAS)测定了铜的含量。F试验结果表明,糖中铜的最佳氧化剂为HNO3/H2SO4。编码为A、B、C、D、E的糖果中铜的平均浓度为1。72毫克/公斤;1.69毫克/公斤;1.57毫克/公斤;1.71毫克/公斤;和1.69 mg/Kg。糖果中铜的含量低于SNI规定的每日膳食推荐限量。关键词:原子吸收分光光度法,糖果,物质氧化剂,时间稳定性,湿破坏
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