| 离子色谱法测定茶饮料中氟化物含量 |
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| 引用本文： | 邹沫君,唐诗文,陈诚. 离子色谱法测定茶饮料中氟化物含量[J]. 饮料工业, 2021, 0(1): 43-46 |
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| 作者姓名： | 邹沫君 唐诗文 陈诚 |
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| 作者单位： | 乐山市食品药品检验检测中心;乐山师范学院;山东高速四川产业运营公司 |
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| 摘 要： | 建立用离子色谱/电导检测法测定茶饮料中氟化物的分析方法.试样用氢氧化钾溶液提取,经过滤、离心分离后,依次过0.22μm微孔滤膜、C18小柱处理后进样检测,选用IonPac AS19阴离子交换分离柱,氢氧化钾淋洗液梯度洗脱,流速1.0mL/min,以电导检测器检测.结果表明:氟离子在0.0mg/L～10.0mg/L质量浓...
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| 关 键 词： | 离子色谱 电导检测 茶饮料 氟化物 |
Determination of the Fluorinion in Tea Drinks by Ion Chromatography |
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| ZOU Mo-jun,TANG Shi-wee,CHEN Cheng. Determination of the Fluorinion in Tea Drinks by Ion Chromatography[J]. Beverage Industry, 2021, 0(1): 43-46 |
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| Authors: | ZOU Mo-jun TANG Shi-wee CHEN Cheng |
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| Affiliation: | (Leshan Center for Food and Drug Control,Leshan 614000,China;Leshan Normal University,Leshan 614000,China;Shandong High-speed Sichuan Industrial Operation Company,Leshan 614000,China) |
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| Abstract: | A new method was established to determine fluorinion in tea drinks by ion chromatography with conducting detection.The samples were extracted by KOH solution and separated by filtration and centrifugation,then filtrated with 0.22μm membrane and C18 column.The samples solution were injected and analyzed.IonPac AS19 was selected as the separation column.The gradient KOH solution with a flow rate 1.0 mL/min was used as eluents.Auto-generated conducting detection ASRS-4 mm was used.The results showed that the linear relation of fluorinion was good in the range of 0.0 mg/L~10.0 mg/L(r=0.9999).The detection limit was 5.67μg/L.At the concentration addition levels of 0.1,0.2,1.0 mg/L,the average recovery rates were 96.45%~99.04%.The method had a wide linear range,good repeatability and accuracy,which was suitable for the quantitative detection of fluorinion in tea drinks. |
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| Keywords: | ion chromatography conductivity detection tea drinks fluorinion |
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