| 离子色谱法测定燕窝中的亚硫酸盐 |
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| 引用本文： | 姜川,唐旭伟,张夏翊,邹小龙,陈梦,汪昕.离子色谱法测定燕窝中的亚硫酸盐[J].分析仪器,2019(1):114-116. |
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| 作者姓名： | 姜川 唐旭伟 张夏翊 邹小龙 陈梦 汪昕 |
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| 作者单位： | 丽水市食品药品与质量技术检验检测院,丽水,323000;莲都区药品不良反应监测站,丽水,323000 |
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| 摘 要： | 食品中的亚硫酸盐主要用途是在食品生产加工过程中充当漂白剂、防腐剂、脱色剂、抗氧化剂和防止酶变及非酶褐变的添加剂。本实验建立了食品中亚硫酸盐的离子色谱检测方法。以Metrosep A Supp5-150为色谱柱,淋洗液为3.2mM Na2CO3+1.0mM NaHCO3,流速0.8mL/min,进样体积25μL,化学抑制电导检测,结果表明,亚硫酸盐的残留量在0～10mg/L的范围内线性关系良好,相关系数为0.9994,加标回收率为97.5～102.4%。亚硫酸盐不稳定,因此样品采用40mmol/LNaOH溶液提取,甲醛作稳定剂。
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| 关 键 词： | 燕窝 离子色谱 亚硫酸盐 添加剂 |
Determination of sulfite in cubilose by ion chromatography |
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| Jiang Chuan,Tang Xuwei,Zhang Xiayi,Zou Xiaolong,Chen Meng,Wang Xin.Determination of sulfite in cubilose by ion chromatography[J].Analytical Instrumentation,2019(1):114-116. |
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| Authors: | Jiang Chuan Tang Xuwei Zhang Xiayi Zou Xiaolong Chen Meng Wang Xin |
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| Affiliation: | (Lishui Municipal Institute of Food&Drug Testing and Quality&Technical Inspection,Lishui 323000,China;Liandu District Adverse Drug Reactions Monitoring Station,Lishui 323000,China) |
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| Abstract: | The separation was carried out on a Metrosep A Supp5-150 chromatographic column,with 3.2 mM Na 2CO 3 and 3.2 mM NaHCO 3 as eluent at the flow rate of 0.8 mL/min.The sample volume was 25μL,and the detection was realized through the chemically suppressed conductivity detector.The results showed that the residues of sulfite were in the range of 0-10 mg/L,and the linear relationship was good.The correlation coefficient of 0.9994 was achieved.And the recoveries were within 97.5%-102.4%.Because sulfite is not stable,formaldehyde was used as a stabilizer when the samples were extracted with 40 mmol/L NaOH solution. |
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| Keywords: | Cubilose Ion chromatography Sulfite Additive |
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